How to Clean a Hobart Mixer

Many people are using Hobart commercial mixers in their restaurants or bakeries. If you are also one who has a Hobart mixer, focus on the regular cleaning and maintenance. One of the best ways to protect against common Hobart mixer problems is to regularly clean your equipment and it's parts. Below are the tips on how to clean a Hobart mixer that you can follow to extend the life and minimize parts replacement.

How to Clean a Hobart Mixer?

While cleaning Hobart mixer, you should clean the mixer bowls and other accessories as well. Wash beaters, whips, and dough arms thoroughly with mild soap solution and water. After that rinse these components with mild soda or vinegar solution. Next, rinse with clean water before using them.

You should follow the same cleaning procedure for bowls and agitators before whipping egg whites or whole eggs.

Make sure you clean your mixer daily. You should not use a hose to clean the commercial mixer. Use a clean and damp cloth. You will be able to clean under the mixer through ample room under the base. Periodically, remove the drip cup and wipe it off to clean.

Wire Cage Cleaning

If you want to clean the mixer's bowl guard wire cage, follow the below instructions.

Rotate the wire cage to the left until the three carriers align perfectly with the carrier escape slots in the circular ridge of the planetary drip cup.

Lift the bowl guard wire cage straight up so the carriers escape from the slots on the drip cup. Now, you can remove the wire cage by pulling it towards you.

Then, wash the bowl guard wire cage in a sink. Rinse the cage with normal water and dry with a clean cloth.

The splash guard can wipe off and wash with a cloth or sponge using warm soapy water. Rinse with a clean cloth.

After completion of the cleaning process, you must re-install the bowl guard wire cage in the correct position.

Tips for Preventive Maintenance

If you follow the preventive maintenance tips along with regular cleaning, you can reduce the Hobart mixer problems. Here, we have given some Hobart mixer preventive maintenance tips that you can follow to save money with the less repairs.

Lubrication

Your Hobart mixer has many moving components. For a smooth running of all mixer parts, you have to lubricate them regularly. If you lubricate regularly, it prevents heat from warping the parts.

You should lubricate the lift slide rails at least once a month. The rails get splashed with doughy, dry or wet ingredients. So, it is very important to clean them frequently. Bowl clamps needed to be lubricated twice a year. Mixer's moving parts lubrication is one of the best ways to extend the life of your equipment as well as it's parts.

Seals Replacing

When seals are leaking, you can notice it around the auxiliary attachment hub, planetary assembly, etc. You just replace the grease. With the help of training videos, you can replace the grease simply. If you are trying yourself, use synthetic food-grade grease to replace it. Seals are also needed to be replaced if necessary.

Deep Cleaning

You should perform periodic deep clean. And, wipe down the mixer after every use. Check out the deep cleaning for various parts of the Hobart mixer. You need to clean all parts to clean leftover dough from all the nooks and crannies.

Switches and Timers: You will need to wipe down timers, switches, bowl attachment locks, auxiliary attachment parts, back rails, etc. At the end of every day, you need to do this. Remove parts that show buildup and clean them. Once a month, deep cleaning is necessary.

Fan and Protective Grid: The protective grid will be clogged easily as it is used repeatedly. Sometimes, it may be blocked which causes the motor gets too hot. The fan in the mixer is also coated with flour and other ingredients that obstruct the air intake and reduce the ability of the motor to cool down. So, clean the needed spots to keep the mixer's motor running smoothly longer.

Planetary Assembly: Clean the planetary assembly periodically by opening it with a screwdriver. When you open it, check for the lubricant leaks too. The moisture would be caused to rusted parts so see for the leaks and fix them.

Keep Mixer Parts Dry

Always keep each part dry before replacing them. Commonly condensation will occur on the mixer. To remove condensation, wipe it to dry after wiping it down at the day end. Make sure dry each one such as splash guard, wire cage assembly, etc.  

Inspect Safety Features

You should check the safety features of your Hobart mixer. Check for the undamaged safety cage, power cord issues, wire cage bowl guard, etc. If they got damaged, replace them with less price.

Wrap-Up

If you care about your Hobart mixer with regular cleaning and maintenance, it will give you long service life. If the task of Hobart mixer cleaning gets too hard for your skill level, once contact a technician so you can get advice and instructions. For further more instructions on how to clean a Hobart mixer, refer to the owner’s manual.

Taylor Soft Serve Machine Troubleshooting

Taylor soft serve ice cream and frozen yogurt machines are known for their quality, reliability, consistency, and convenience. But, they still require proper maintenance and frequent repair. Let's look at a few common Taylor soft serve machine problems. This guide is for operators to ensure their Taylor machine is well maintained and consistently produces the best ice cream products for their customers.

Taylor Soft Serve Machine Troubleshooting Guide

Here, you can check some issues with your Taylor soft serve ice machine, their possible causes, and remedies.

Bacterial Count Troubleshooting

Thoroughly clean and sanitize the soft serve machine regularly including complete disassembly and brush cleaning.

Clean the machine thoroughly by using all brushes provided. These brushes are specially build to reach all mix passageways.

 You need to use the white bristle brush to clean the mix inlet hole that extends from the hopper down to the rear of the freezing cylinder.

Use the black bristle brush to clean the rear shell bearing located at the rear of the freezing cylinder. Make sure to have a sufficient amount of cleaning solution on the brush.

If local health codes permit the use of rerun, make sure the mix rerun is stored in a sanitized, covered stainless steel container and use it in the following day. Do not prime the machine with a rerun. When using rerun, skim off the foam and discard. Mix the rerun with a fresh mix in a ratio of 50/50 during the days of operation.

On a designated day of the week, run the mix as low as possible and discard it after closing. This will break the rerun cycle and decrease the possibility of high bacteria and coliform counts.

Prepare the cleaning and sanitizing solutions properly. A too strong solution may damage the parts and a too weak solution won't do an adequate job of cleaning as well as sanitizing.

The temperature of the mix in the hopper and walk-in cooler should be below 40°F (4.4°C).

No product is being dispensed with the draw valve open and the machine is in Auto mode

Freeze up in the mix inlet hole - Because of this mix inlet hole, you can get this problem. You have to adjust the mix hopper temperature to avoid issues.

Beater motor out on reset - If so, you should reset the freezer.

The beater is rotating counterclockwise from your end - You need to correct the rotation of the beater to clockwise from your side.

The circuit breaker is off or fuse has blown - Try resetting the breaker on. If the fuse has blown, replace it.

Inadequate mix in the hopper - Make sure to fill the hopper with sufficient mix.

Air orifice might not be installed - Install the air orifice in the air tube.

Product is too soft

To avoid this problem, you need to adjust the viscosity.

There will be no enough air space around the machine. Make sure to allow adequate airflow across the condenser.

Check for worn scraper blades. You will need to replace these blades regularly.

Clean the condenser once a month.

Check if the mix is out of date. Be sure, use fresh mix only.

There might be water loss. Find out the water leakage or any reason for water loss and correct it quickly.

Mix is too warm in the mix hopper

Check whether the mix hopper temperature is out of adjustment. With the help of a technician, you should adjust the temperature of the mix hopper.

Missing or worn mix hopper gasket - Need to replace the gasket around the mix hopper.

Verify the mix hopper cover position and adjust it correctly.

If the mix light is not lit, ON it by pressing the MIX button.

Freezing cylinder walls are scored

Beater assembly could be bent - To correct the cause of insufficient mix in the freezing cylinder, repair or replace the beater.

Check if the front bearing is missed or worn on the freezer door. If either of these cases happens, you have to install or replace it with a new bearing.

No freezer operation after pressing the AUTO button

The machine is unplugged - Plug into the wall outlet.

Problem with circuit breaker or fuse - If the circuit breaker is tripped, reset it. The blown fuse might be caused. Replace the fuse if it has blown.

Beater motor is out on reset - You have to reset the freezer.

Taylor Soft Serve Machine Regular Maintenance Checks

Replace scraper blades that are damaged or nicked. Make sure that scraper blades are properly attached to the helix before installing the beater assembly.

Inspect the rear shell bearing for signs of excessive mix leakage in a rear drip pan. It should be cleaned properly.

Keep the rear shell bearing and 3/4 hex drive coupling clean and free of lubricant as well as mix deposits.

Check O-rings and seals. If they are worn or fit too loosely, replace them with new ones.

Follow all lubricating procedures given in the owner's manual.

If your soft serve machine is air-cooled, you have to check the condensers for the accumulation of dirt and lint. As dirty condensers reduce the capacity and efficiency of a machine, you should clean the condensers monthly with a soft brush.

If your machine is equipped with an air filter, it's important to vacuum clean the filters on a monthly schedule.

Conclusion

Hope this Taylor soft serve machine troubleshooting guide helped you to save money and time. However, proper maintenance is the key to every machine to prevent problems. You can visit partsfps.com to buy genuine repair or replacement Taylor soft serve machine parts.

Carrier Infinity Air Purifier Installation

Have you bought a Carrier Infinity air purifier for your home comfort system? Check out this blog to know how to install it. The infinity air purifier is designed to remove and kill bacteria, viruses, mold spores and other airborne germs. This air purifier provides high filtration performance while removing and killing captured contaminants. However, take the help of this guide to complete your Carrier infinity air purifier installation.

Carrier Infinity Air Purifier Installation

Before starting the Carrier Infinity air purifier installation process, have a look at it's working process.

The infinity air purifier treats the whole air stream through the state of art and three-stage process.

At stage one, the particles are electrically charged by a precision point ionization array as they enter the air purifier.

In the second stage, the charged particles are electrically attracted to the air purification cartridge which is located within the electric field.

In stage three, captured particles are killed by an electrical current flow and ion bombardment.

Application Considerations

The Carrier Infinity air purifier is built for use in the return air duct of a forced-air heating, cooling and ventilation (HVAC) system.

Air conditioning units - If you install this air purifier in AC, then all the return air will be circulated. Infinity air purifier needs to be located upstream of both the furnace and air conditioning evaporator coil.

Humidifiers - An evaporative humidifier can mount upstream of the infinity air purifier. It's the best way to install atomizing humidifiers downstream of the air purifier because hard water salt deposits and water droplets may damage the air purifier.

If an atomizing humidifier needs to be mounted upstream of the infinity air purifier, it should be mounted as far upstream as possible. Moreover, standard disposable furnace filters should mount between the air purifier and the humidifier to trap hard water salt deposits as well as water droplets.

Make sure that the humidifier installation won't allow water or water droplets to enter the air purifier as it may cause damages.

Transitions - If the return air duct or furnace openings are not fit the infinity air purifier cabinet openings, Carrier recommends gradual transitions to reduce air turbulence and increase efficiency. Make sure not to use more than 45 degrees of expansion on each side of the transition fitting.

Turning Vanes -You should add turning vanes inside the duct if the air purifier is installed adjacent to a 90-degree duct elbow. This will improve air distribution across the face of the air purifier.

How to Install Carrier Infinity Air Purifier?

Improper installation may cause personal injury or property damage. So, you must refer to the individual instructions given in the package kit when installing.

Identify Mounting Location

First, you should remove all components from the box carefully. You need to identify the mounting location for the infinity air purifier in the return air duct.

The identified location should be accessible. Moreover, you need to provide enough room for the periodic replacement of air purifier cartridges.

Mount Infinity Air Purifier Cabinet

Turn off power to your heating or cooling system.

Now, you have to take out the existing furnace filter and discard it. There may get excessive system static if the infinity air purifier is used with other filtration devices.

Remove the air purifier cartridge and enhancement module from the air purifier cabinet.

After that, you have to place the cabinet between the furnace and return the air duct. You may require a transition duct.

Use furnace adapters for top/ bottom mount installations.

You should use the return air duct adapters to connect the upstream side of the infinity air purifier cabinet to the return air duct.

Install foam tape in between the air purifier cabinet and the furnace.

Use the mounting holes for ductwork and furnace attachment.

Seal seams with tape or caulking after the air purifier cabinet has been secured. Secure furnace to transition with sheet metal screws.

Wiring

Make sure that power has been removed from the heating and cooling unit. Turn off the Carrier Infinity air purifier.

Now, you need to connect the power cord and airflow sensor bypass plug to the appropriate power supply connectors.

While connecting the power cord, attach the green ground wire to the ground terminal on the cabinet.

Route the power cord through the nearest cabinet hole and protect it with the enclosed cable connector.

Enclose the zip ties to secure the power cord to the side of the power supply.

Next, attach the quick connect terminals to the furnace spade connections. You have to connect the ground ring to the furnace chassis ground.

The air purifier needs to be powered by 115v/60 Hz.

If you don't have EAC connections, contact your local HVAC technician.

Conclusion

After completion of Carrier infinity air purifier installation, you need to check it's operation. The infinity air purifier must only be powered when airflow is present. Still, if you have any queries related to your air purifier installation, you can contact a local HVAC technician. Although, your owner's manual will assist you with how to install a Carrier infinity air purifier.

Vulcan Steamer Troubleshooting Guide

 Vulcan offers a wide variety of gas and electrical steamers. Vulcan steamers offer an efficient way to produce many foods in either small portions or larger batches. From, convection steamers to high-efficiency boiler-less models, Vulcan Hart steamers produce the maximum color, flavor, and high nutritional value with the least expenditure of energy and labor. However, any kind of steaming equipment gets troubles. If your steamer also not steaming properly, check out our Vulcan steamer troubleshooting guide. With reference to this post, you can simply fix the basic Vulcan steamer problems.

Vulcan Steamer Troubleshooting Guide

Below are the most common problems that can occur in the steamer. So, check the possible causes and solutions for your Vulcan steamer problems.

Steamer Will Not Heat

Check for the incoming voltage. There should be sufficient voltage to produce normal heat.

Inspect the tank if it is filled or not.

Check for the malfunction of the power switch. Sometimes, it needs to be replaced.

There may be a water level control malfunction.

Relay malfunction might occur.

A high-limit thermostat could be opened. Close it to fix the error.

Check for the inoperative heating element. Limiting or regulating contactor malfunction.

Control thermostat could be opened. It must be In a closed position.

Check for relay malfunction. If necessary, you need to replace the relay.

Water Not Being Supplied to Generator

If there is no water supply to the generator, first turn the machine ON. Now, check whether the water supply is available or not. After 10 minutes of running the machine, you have to observe the supply. If no water is being supplied, then you need to check for issues with the water level control probe or water solenoid valve

Scalants in the water level control probe give a false indication of a sufficient water level in the generator. So, remove and clean the probe assembly thoroughly to remove lime build-up or scalants. Moreover, the water condition must be cleared immediately with a good water conditioner to avoid further problems with your Vulcan steamer. Now, you have to re-install the water level probes and canister assembly.

Water may be drained through an open generator solenoid valve as quickly as it's fed to the generator. Scale particles trapped in the generator solenoid valve seat can prevent the valve from closing.

Water Accumulating in the Cooking Compartment

Water accumulation on the bottom of the steamer's cooking compartment is primarily condensed steam. Due to debris in this compartment drain screen, it will fail to drain out quickly and completely.

To resolve the problem, pull the screen straight out and clean it. Once the cleaning has been done, rearrange the screen in the correct position. Sometimes, improper leveling of the steamer also caused not drain completely.

Vulcan Steamer Achieves Pressure Slower than Normal

If the generator takes more than 18 minutes to get normal operating pressure, i.e., 3 to 4 psi, check the following steps.

A heavy buildup of scalants has possibly coated the interior of the generator. The insulating effect of the scalants hampers heat transfer in your steamer. Unscrew & remove the clean-out port plug on the generator bottom and with a small mirror check the interior.

If you notice scalants or lime buildup, you have to perform the generator cleaning. If there are significant scalants, examine both the generator drain solenoid valve and the water level control.

Check for the low incoming gas pressure. You can check the incoming line and manifold gas pressures as given by your owner's manual.

Check if the gas combination control valve has malfunctioned. If you have done pressure adjustments, but manifold pressure remains low, you will need to replace the gas combination control valve. Also, test the Vulcan Hart steamer for proper operation.

A gas orifice could be clogged or obstructed around the air shutter. Check for debris in the small gas orifice opening and clean it out. By using a round metal instrument of the same hole diameter. you can clean the orifice. Also, remove any other foreign objects that are obstructing the gas orifice or air shutter.

Steam Output is Low or Slow Cooking

Here, you can know the possible causes for your steamer slow cooking.

Due to blocked steam injector ports. Check and clean them if needed.

See if the steam solenoid valve is not opening fully or blocked.

The steam intake shut-off valve might be closed.

Check for the cycling pressure switch malfunction. It may need adjustment.

Pressure relief valve leaking or steam supply lines leaking might be causing the issue.

Check for the clogged steam strainer.

Superheater clogged or cracked.

Burner Won’t Light or Won’t Stay Lit

Gas is turned off - You should turn it to ON.

There could be a combustion air pressure switch malfunction.

No power to the ignition module. Hence, check whether there is a power supply to the ignitor module or not.

Check if the machine is grounded properly. Also, verify the incoming power polarity on automatic ignition systems.

Low incoming gas pressure.

Malfunction with ignition module or gas combination control valve.

There may be a water level control malfunction.

The Generator pressure switch might be opened or set too low.

See if any obstructions in the gas orifice.

Supply line gas pressure is too low.  

Conclusion

We hope, this post helped you to fix Vulcan Hart steamer problems easily. For more Vulcan steamer troubleshooting tips, refer to your unit’s manual. If you need to replace any Vulcan steamer parts, you can buy new items from PartsFPS at low costs.

Find a guide on Vulcan steamer troubleshooting. Get simple fixes for Vulcan Hart steamer problems. When you need to buy Vulcan parts, choose PartsFPS

Manitowoc Ice Machine Installation

 Are you looking to know the Manitowoc ice machine installation procedure? Here, you can find the steps to install your ice machine. The ice machine should be installed as per instructions. Moreover, the connection to drains, water service, electrical service, and grounding should compatible with the applicable local and state codes. Read this blog to complete Manitowoc ice machine installation steps simply.

Manitowoc Ice Machine Installation Process

Find out the guidelines on Manitowoc ice maker installation.

Location Requirements

The location where you want to install the ice machine must meet the following criteria. If any of these criteria are not met, you have to choose another location.

The place should be free of airborne and other contaminants.

Ensure that the air temperature is between 40°F to 110°F.

For a remote air-cooled ice machine, the temperature must be minimum -20°F and maximum of 120°F.

The location should not be near the heat-generating equipment. Although, should not be in direct sunlight and be protected from the weather.

The location must not be obstructed airflow through or around the ice maker. You can check the clearance specifications in the manual for your specific model.

Bin Installation

All models of ice machines installed on a bin will require an ice deflector.

Manitowoc bins have a deflector installed and no need of modifications when used with a forward facing evaporator.

Ice machines with multiple evaporators need a deflector kit.

Dispenser Installation

For ice machines that match the dispenser size, there is no need for an adaptor. Unless required by the manufacturer.

No deflector is required.

While installing a dispenser, a bin thermostat is recommended to control ice level.

Leveling the Ice Storage Bin

You have to remove the threaded plug from the drain fitting.

Screw the leveling legs onto the bottom of the bin. The legs must be screwed in tightly to prevent them from bending.

Screw the foot of each leg in as far as possible.

Now, move the ice storage bin into it's final position.

Level the storage bin to assure that the bin door closes and seals properly. You can use a level on the top of the bin. Turn the base of each foot as necessary to level the bin.

Manitowoc bins comes with a closed-cell foam gasket installed along the top surface of the bin. So, you have to inspect the bin gasket before ice machine installation.

Remove all panels such as front panels, top cover, left and right panels from your machine before lifting and installing them on the bin.

Electrical Requirements

Coming to voltage, the maximum allowable voltage variation is ±10% of the rated voltage at ice machine start-up.

Ice machine's wire routing and ground must be done according to the local, state and national electrical codes. Also, observe the following things.

The ice machine must be grounded.

Use a separate fuse or circuit breaker for the machine.

Inspect all green grounded screws in the control box and ensure that they are tight before starting your ice maker.

Minimum circuit ampacity

It is used to select the wire size of the electrical supply. Minimum circuit ampacity is not the machine's running amp load.

The wire size depends on the location, length of run, materials used and so on. Hence, it is better to take the help of a qualified electrician to determine. 

Ground fault circuit interrupter

GFCI or GFI protection is a system that shuts down the electric circuit when it senses an unexpected loss of power. Normally, Manitowoc doesn't recommend this ground fault circuit interrupter circuit protection system. But, if your local code recommends, then you can use it.

Water Inlet Valves

When you are installing the arctic pure water filter system, check the installation instructions given with the filter system for ice making water inlet connections.

Make sure not to connect a hot water supply to your ice machine.

If the pressure of water exceeds 80 psi, get the water pressure regulator from the manufacturer.

You need to install a shut-off valve for both ice-making and condenser water lines.

Insulate water inlet lines for preventing condensation.

Drain Connections

You must take care when installing drain lines for preventing drain water from flowing back into the machine and storage bin. Follow the below guidelines when you are installing drain lines.

Drain lines should have a 1.5-inch drop per meter and should not create traps.

The floor drain needs to be large enough to accommodate drainage from all drains.

You have to use separate bin and ice maker drain lines and insulate them to prevent condensation.

Vent the bin and ice machine drain to the atmosphere. No need to vent the condenser drain on water-cooled model machines.

Cooling Tower Application for Water Cooled Models

You must know about the heat rejection amount and the pressure drop through the inlet and outlet valves when using a cooling tower on your ice machine.

Water flow through the condenser should not exceed 19 liters per minute.

Water entering the condenser must not exceed 90 degrees Fahrenheit.

A pressure drop between the condenser water inlet and outlet of the machine be at 7 psi.

Water exiting the condenser won't exceed 110°F.

Danfoss Thermostat Troubleshooting

A thermostat is a vital component of HVAC equipment. The Danfoss thermostat in Heating, Ventilation, and Air Conditioning units allows you to easily change the temperature in your home or business building that leads to sustaining comfort. As thermostats do an exceptional job to keep us comfortable, problems may happen from time to time. So, in this post, we have given about some Danfoss thermostat problems and their troubleshooting tips. If you are getting problems, you can refer to our Danfoss thermostat troubleshooting tips.

Danfoss Thermostat Troubleshooting Tips

Follow these tips to fix your Danfoss thermostat issues easily.

Danfoss Thermostat Not Working

Is your Danfoss thermostat not working? This can be a frustrating problem to deal with. However, you have some easy steps to fix the issue. Try yourself once to keep your unit working.

Test the Thermostat Settings

If you are using Danfoss programmable thermostat in the HVAC units, first, you have to test the settings to ensure it is set up correctly. You can notify one button for heat, cool, and OFF and another switch for powering the fan at your thermostat.

To solve the problem, turn the thermostat to heat mode in setting and crank the temperature up and see if the system does respond anything. If the unit's power is on, consider that there could not be a problem.

If you need to test the thermostat on air conditioning, you need to set it to cool mode and turn the fan mode to Auto. Now, turn the temperature down and wait for a few seconds. If you observe that the system is working, it's a good sign. Otherwise, there could be another problem going on.

Check Inside of Thermostat

If your Danfoss thermostat is not working at all, there may be a problem raised internally. So, you will have to inspect the inside of the thermostat. First, verify the electrical circuit breaker box and shut off the power to the thermostat. You should also turn the thermostat off and remove the top cover carefully.

Now, you have to check the wiring that is damaged, loose, or disconnected. Also, check to see if everything is clean in the wiring department.

If you found any issue inside of your thermostat or there is loose or broken wiring, that might be the problem. If not, you need to find other issues under the cover and there could be something going wrong with your HVAC system. You can also solve the issue with the thermostat replacement.

Display Screen Is Blank

In most cases, the thermostat screen is displayed black when everything is powered on. If you are facing this problem, you have to check the thermostat for dead batteries. You have to be replaced the batteries if they are dead.

Check the access of your HVAC unit that is not closed properly. You can see a blank on the thermostat display if the door is not closed in the proper way.

When your unit doors are closed, a switch is activated that allows the heating or cooling equipment to work. If this door is open, then the switch doesn't activate and yields to the system will not work. Make sure to examine that your unit and all doors are closed.

In addition, verify for the tripped circuit breaker. A tripped circuit could be caused the thermostat to display a blank screen. If it is tripped, reset the breaker. Generally, HVAC units have their own circuit breaker. Make sure to examine this breaker to set the switch in the right position.

Thermostat Won't Turn on Heat

If your thermostat does not turn on the heat or not maintaining heat in your building, check the batteries. If the display screen is working properly, then you need to inspect the issues with wiring of the thermostat.

Check the position of the Danfoss thermostat. It should be completely leveled. If it is not at a level, then the mercury switch in the thermostat could tend to read the incorrect temperature. It results that your system power on and off continuously. Ensure that the thermostat is completely level to fix the issue.

Thermostat Reading Doesn't Match with Actual Temperature

If your thermostat seems to be not giving the correct temperature, it could because of a temperature sensor. You may notice the difference between indoor temperature and reading temperature when there is an issue with the temperature sensor. Once check the sensor to repair. If you are unable to fix the issue with the temperature sensor, replace it with a new one.

In addition to the above, program defects and old components are also reasons behind your Danfoss thermostat not working. If your thermostat becomes old or there are any issues with the programming, replacement is the better way.

Conclusion

Finally, if you have done all basic Danfoss thermostat troubleshooting steps, but your unit still not working correctly, it's time to call an HVAC professional. To avoid problems in the future, pay attention while installing the thermostat. Learn how your thermostat work and how to solve some common Danfoss thermostat problems. Additionally, you will get a manual along with the thermostat. In that manual, you can see a troubleshooting section that helps you to solve the problems.

True Freezer Troubleshooting

 The True freezer is one of those appliances that tends to go unappreciated until it's not freezing as it should. However, many things can go wrong with your True manufacturing freezer. As there are just as many simple fixes, you can try these fixes to get the unit back to keep in perfect condition. Have a look at these True freezer troubleshooting tips.

True Freezer Troubleshooting Guide

Find out the solutions for True Freezer not freezing, operates continuously, compressor problems, etc.

Freezer Running but Not Cold

We will see the basic operation of the cooling system in your True freezer before start the troubleshooting process.

The compressor releases a refrigerant to the condenser. The condenser coils transform the refrigerant from vapor to liquid while releasing heat which you feel blowing near the unit while it is in a cooling cycle. The cooler refrigerant flows into the evaporator through an expansion valve. From the evaporator, it absorbs heat from the freezer and cools the contents. After that, the refrigerant moves into a warm vapor, then returns to the compressor and repeats the cycle.

However, a disruption in the cooling cycle stops your freezer from cooling. So, you need to verify many factors that contribute to this issue. Before going into depth fixes, you have to fix some minor issues.

Thermostat

The temperature setting might be raised accidentally. If this is the case, simply adjust it.

Check for the defective thermostat as it does not send power to the refrigerant system.

To see if the thermostat is working properly, change the thermostat setting from lowest to the highest. If you notice a clicking sound, consider that there may not be a problem with the thermostat. Also, check the continuity of a thermostat using a multimeter. If it has no continuity, you need to replace the thermostat.

Defrost Timer

You should remove the freezer's plug while testing the defrost timer. Manually advance the defrost cycle by using a screwdriver. You need to turn the advancement screw clockwise until you hear the click sound. When you notice a click, this advances the cycle to the next mode. Wait for 30 minutes or one hour and inspect if it has resumed cooling. If the defrost timer is not advance, you have to replace it.

Condenser Coils

Check for the build-up of dust and dirt around the condenser coils. You should clean these coils every 6 months to get an optimum operation. Additionally, clean the rear-mounted coils once a year.

To remove dirt accumulation, you can use a brush or vacuum. Use hot soapy water to remove stubborn debris. Make sure that water will not be dripped on your True freezer components.

Door Seal

You have to test the freezer's door seal as a faulty door seal causes the freezer not to cool. If the seal is dirty, it simply needs to be cleaned. If the freezer's door is not sealed properly, it needs to be replaced or the door realigned.

Evaporator Coils

Generally, the defrost heater melts any frost that accumulates on the evaporator coils. If this frost is faulty, frost will continue to accumulate on the evaporation coils. You can test the heater with a multimeter for continuity. If it doesn't have continuity, you will have to replace the heater. In addition, dirty condenser coils may cause to not transfer heat or cold efficiently.

Compressor

You can find the compressor at the bottom of the freezer. It emits a steady noise or humming sound that indicates that it is running. Clicking sound indicates that the compressor is overloaded or overrunning. If there is no clicking sound but your freezer is not cooling, then there may be an issue with the compressor or its components. So, you have to test each component and replace if it is defective. Also, check the start relay. If it smells burnt, it needs to be replaced.

Condenser Fan Motor

Check if the condenser fan blades are rotating freely. It should be free from obstructions. Obstructions can stop the fan blades from spinning and motor bearings are worn out over time. Also, test the continuity of a fan motor with a multimeter. If it doesn't get the continuity, replace it to get back your freezer running.

Freezer Runs Continuously or Long

Check out the possible causes and fixes to your freezer running for a long time.

Shortage of refrigerant - Fix leakages if any are there. You have to charge the refrigerant if necessary.

Control contacts stuck or frozen closed - Clean control contacts or replace control.

Refrigerated or air-conditioned space has an excessive load or poor insulation - You need to check if there is excessive load.

The evaporator coil is iced - Defrost it.

Check if the condenser and filter are dirty.

Start Capacitor is Open/ Blown/ Shorted

Relay contacts - Check if the relay contacts are operating properly. If not, clean or replace if needed.

Low voltage, improper relay, or high starting load are the causes to this problem. Determine the reason and the need to correct it.

Excessive short cycling might be caused this issue. You can check the answer for short cycling in the True freezer manual.

Relay is Defective or Burned Out

You may have an improper size relay. Check and replace it if necessary.

The relay should be mounted at the correct angle.

Line voltage could be too high or too low.

Relay is being influenced by loose vibrating mounting. You have to remount it rigidly.

Incorrect run capacitor might be the reason behind this problem. So, you have to place the correct capacitor.

Suction Line Frosted or Sweating

Expansion valve passing excess refrigerant or is oversized - You need to readjust the valve or replace it with a smaller one.

Expansion valve stuck open - Clean the valve. Replace if necessary.

Check whether the evaporator fan is running or not.

True Freezer Stuck in Defrost Mode

If your freezer is stuck in the defrost cycle, you need to inspect the timer. A timer is the only component that controls defrost system. You can simply advance it out of defrosting.

Unplug your freezer from the outlet. Next, locate a small hole under the control panel and you will find a knob in the center of hole. Manually turn the knob in a clockwise direction. When you notice a loud click sound, it will be out of defrost and back in the normal cooling mode. Plug the unit back in and it should start operating.

Final Words

Hope this True  Freezer troubleshooting guide helps you more to get back your unit running effectively. However, the way you treat your freezer, it will treat you in return. So, you should follow the regular maintenance tips to eliminate basic and common True freezer problems.

How to Clean a Commercial Popcorn Machine?

 How to Clean a Commercial Popcorn Machine?

Turn off the machine and unplug it.

Before starting the cleaning process, make sure to turn off all the lights of the maker and heating components. Unplug the power cord completely. Let it cool down the kettle for at least an hour before cleaning.

You should remove all popcorn and kernels from the kettle before you clean the kettle. The kettle should be cool while you touch it. So, hover your hand near the kettle without making contact with the metal when you test for heating. If you feel the heat radiating off the kettle, then consider it is too warm to start cleaning.

After cool down, remove the kettle from the popcorn maker.

Unplug the kettle and remove it from the machine so that you can easily be wiped down. You have to use a towel or damp sponge to wipe down the kettle inside and outside as well.

You shouldn't submerge the kettle as this could cause damage to the heating element and other electrical components. Once you completed wiped down of kettle, reinstall it back in the maker.

Depending upon your usage, boil out the kettle by using a specially formulated popcorn kettle cleaner. These types of cleaners available in many kitchen supply stores. Brought the cleaner from store and mix that cleaner with the necessary amount of water as indicated specifications in the package. Bring it to a boil in the plugged-in kettle.

Once the cleaning solution is at a boil, you need to unplug the whole machine and allow it to sit for a specified amount of time.

Drain and rinse the kettle.

Drain the liquid out of the kettle over the sink. After it has been dried, rinse out the kettle fully using a wet cloth or sponge. It will take several times with the sponge to fully rinse the kettle. After rinsed out the kettle, keep it back in the popcorn machine.

Clean the interior surfaces of the machine.

Wipe down the maker's interior with a soft cloth. You can use either a cleaning mixture of warm water and mild dish soap or a solution of warm water and vinegar. You have to use a separate cloth to rinse and dry the maker.

Use a non-ammonia based popcorn maker cleaner to wipe the glass and interior metallic surfaces. It is good for food safety. Moreover, you should follow the instructions provided on the cleaner while using. Also, they specified on the label that you have to rinse the surface with water after use it. You can buy food-safe popcorn machine cleaners online also.

Clean the exterior of the machine.

Wipe down the outer surfaces with a damp towel. If you found any spots like fingerprints or oil slicks, better to use a food-safe glass cleaner to remove that marks, debris as well. Generally, the outer surface will not require any cleaners. It can be cleaned with warm water. With dish soap and warm water helps to remove spots on metallic surfaces. 

Clean the bottom tray.

Remove the bottom tray of the machine and clean it. Wipe down with a soft cloth dampened in warm soapy water. Remember that use separate cloths to rinse and dry the tray.

How to Clean a Hot Air Popcorn Maker?

First, allow the unit to cool entirely. You should not introduce water or other items to cool the maker. Unplug the popcorn maker while letting it cool. It may take a few hours or overnight for complete cooling.

Next wash the cover, butter melter cup, and other removable components with mild detergent and warm water. If the owner's manual states that wash the components by hand, you should do it manually. Use a sponge or cloth for washing all components.

After that rinse the chute with a damp cloth. Remove dust and debris from the popping chamber by using a dry cleaning cloth like a microfiber cloth or fleece cleaner.

Once all components are cleaned and dried, set them back into their places.

Conclusion:-

Hope you got the information on cleaning a commercial popcorn machine from this PartsFPS guide. Depending on the size and model you have to perform extra tasks to clean your maker. So, refer to the manufacturer's manual for getting special instructions on how to remove rust from popcorn machine, clean burnt popcorn kettle, etc. If required, you can take the popcorn machine service from authorized persons.

Nordyne Furnace Troubleshooting

 Have you ever experienced problems with your Nordyne furnace? Now, with our quick Nordyne gas furnace troubleshooting guide, you can repair your system without the help of a technician. Let's check out the Nordyne furnace common problems and their solution tips.

Nordyne Furnace Troubleshooting

Is your furnace not starting, oil pump damaged or any other problem sensed? Get the best tips for your Nordyne furnace common issues.

Furnace Doesn't Start

Thermostat Not Calling For Heat

You have to check the thermostat and adjust it if required. See for the accuracy of the thermostat. If your thermostat is mercury switch type, it might be off level.

No Power To Furnace

See the furnace switch, main electrical panel furnace fuse, and circuit breaker. Also, verify for any other hand-operated switch like the old furnace switch which was not removed during the unit replacement.

Thermostat Faulty

Remove the thermostat wires from the oil primary control terminals. And, place a jumper across T-T. If the furnace starts to operate, you need to do the thermostat replacement.

Oil Primary Control Faulty

Check the reset button on the oil primary control.  Remove thermostat wires from oil primary control terminals T1 - T2. Check for 24 volts across T -T. If no voltage is present, check for 115v to oil primary control.

Open Safety Switch

You have to check the open limit switch and internal wiring connections, loose connectors, and so on.

Furnace Will Not Start without First Pressing Oil Primary Control Reset Button

No Fuel Oil

Verify the fuel oil supply. And, once examine the fuel oil valves are in the open position or not.

Clogged Nozzle

If there is a clogged nozzle, you should replace the nozzle with quality. Take the reference from the manual.

Sometimes your oil filter might be clogged. So, you have to replace the oil tank filter or an in-line filter is used.

Low Oil Pump Pressure

You have to adjust the pump pressure by connecting the pressure gauge to the oil pump. Make sure that erratic pressure readings are not caused by a defective fuel oil line.

Defective Burner Motor

Finally, check for the damaged burner motor. If the burner motor is cutting out on overload, determine the causes or replace it.

Oil Burner Sputtering At Nozzle

Electrodes Are Defective Or Out Of Adjustment

So, you need to go to the electrodes section and check their settings. Also, see if there is dirt buildup or cracks in the porcelain.

Defective Transformer Or Poor Transformer High Voltage Connections

Verify the contacts between the igniter and electrodes. If they are perfect, you have to replace the igniter.

Fuel oil filter clogged

If it is clogged, needs to be done the replacement. Buy original oil filters and replace them.

The Oil Pump is Defective

Check the oil pump pressure and burner motor/ fuel oil pump coupling. If need, replace the fuel oil pump.

Fuel Oil Line Partially Clogged Or Contacts Air

Bleed air from oil line. If still a problem occurs, replace the oil line.

Excessive Fuel Oil Consumption

Furnace Temperature Rises Too High

Your furnace temperature rises ideally but should not exceed 85°F. Check the blower fan for excess dirt or debris build-up. Try to speed up the blower fan.

FAQs

What Would Cause A Furnace Not To Kick On?

Mostly, the pilot light failure or faulty ignition sensor caused your furnace not to ignite. So, once check both the ignition sensor and the pilot light. To fix this issue, place the front panel back on, turn the gas on and turn the unit back on. Now, set the temperature on your thermostat to check if your furnace will ignite.

Where is The Reset Button On My Furnace?

Sometimes, you need to be reset the unit while fixing issues. You can locate the reset button on your furnace inside the blower compartment behind the blower motor. You should be cautious while finding the reset button as the housing may be hot.

Why is My Furnace Clicking But Not Turning On?

Sometimes, you can hear a clicking sound from your furnace but it will not provide heat when you start it. If spark ignitor of the furnace is trying to ignite the pilot light or burners but failing to do it, it might because of a malfunction of the ignition system. So, you have to fix the ignition system problem.

How Do You Bypass The Pressure Switch On A Furnace?

Bypassing the pressure switch is not a repair, its only a troubleshooting technique to isolate the problem. Shut off the thermostat and circuit breaker. Locate the pressure switch which is connected to a plastic hose and two wires inside the furnace. Unclip these two wires from the metal contacts. Splice the connectors on the wires with a short piece of tape. Now, switch on the circuit breaker and activate the unit at the thermostat. If your furnace operates normally, then consider that the pressure switch is defective.

What Does 1 Hour Lockout Mean On Furnace?

Your furnace controller shuts off fuel and power to prevent unsafe operation if any sensor reports an unsafe condition. This condition is called lockout. Your unit will remain normally in the locked out state until you reset it manually.

Conclusion:-

Hope this Nordyne furnace troubleshooting will help you to fix the problems easily. Still, the problem persists, you can refer the Nordyne furnace manual troubleshooting. For replacement of furnace parts, choose PartsAPS. Here, you will get your needed Nordyne parts at best pricing!

How To Clean A Hot Dog Roller Grill ?

 A commercial hot dog roller is the best choice when you want to heat a large batch of hot dogs or sausages. So, many foodservice centers such as restaurants, convenience stores, and stadiums use these hot dog roller grills. However, you should focus on maintenance to keep your unit in great working order. Also, proper cleaning ensures a clean environment in your establishment. The following tips will instruct you on how to clean a hot dog roller grill.

How to Clean a Hot Dog Roller Grill?

Many people know about how to use a hot dog roller but they don’t aware of its cleaning process. So, here, we have updated some simple steps to clean the hot dog roller grill.

Regular Cleaning:

If you serve a lot of hot dogs, wipe down the machine every few hours to prevent a high amount of food residue as well as fat that is stuck to the rollers. Here are some easy instructions for the daily cleaning of hot dog roller grills.

When the grill is off, turn on rollers and set the temperature to high, and let down rollers to heat until loosening grease and particles stuck to rollers. Otherwise, remove the divider kit to get access to rollers if applicable.

Before you begin, you should use heat resistant gloves to avoid burning hands or fingers while wiping down.

You have to use a soft damp cloth to wipe each roller. Start the wiping from the end of the grill and go towards the middle. You should not wipe into the end of the roller as this will cause to get the grease and particles into the bearings so that they may damage the machine mechanics. Moreover, as abrasive materials damage the coating on the rollers, never use abrasive materials or any powders to wipe down the grills.

Once the grease and particles are removed, wipe the grill full of soapy water using a soft cloth as per the above step. This step is optional when you clean the machine between every use.

Cleaning at End of the Day:

Follow these directions to clean and sanitize the unit each day after use.

With the roller off, you have to remove the plug and allow it to cool before starting the cleaning.

Moreover, remove any hot dogs that are remained on the roller.

Check for the machine at its highest temperature setting and ON the rollers. The highest heat setting helps to remove the grease and food particles from the machine,

After five minutes, change the heat setting to "low" or "hold". Now, using a soft cloth dampened with mild soap and hot water or cloth filled with ice wipe down the rollers. You should wipe with cloth from the edge to the center of the roller for avoiding grease and particles from getting to the bearings. Never use oven cleaners or abrasive materials on non-stick roller assemblies.

After completion of wiping down the rollers, soak the cloth in soapy hot water. Again clean the rollers with this cloth with the following of the above step.

Once it is finished, rinse the roller grill with a separate soft cloth.

Separate the drip pan or accessories and clean them thoroughly with hot water and mild soap.

Also, clean the outside of the unit with a soft cloth dampened with mild soap and hot water. You can wipe these stainless steel parts with a cleaner like gold medal watchdog stainless cleaner. You should not use oven cleaners as they will damage hot dog roller parts.

Now, let it down for drying completely, or use a dry cloth to dry completely.

Once the unit dry, you can install the removed drip pan or parts on the roller.

Roller grill cleaning pads and holders also available in the market for cleaning your machine. If you need any hot dog roller repair or replacement, you can take the help of an authorized service technician.

Final Words:-

Hope you got the instructions on how to clean a hot dog roller grill. Still, if you have any doubt, you can check your manufacturer's manual to get detailed instructions. Remember that PartsFPS provides you original hot dog roller parts for replacement needs.

Lennox Air Conditioner Thermostat Troubleshooting

The Thermostat is an important component of your Lennox air conditioning system. If something goes wrong with the air conditioner's thermostat or if it is installed incorrectly, it may have a huge impact on how comfortable you are with your unit. However, an HVAC technician is not required for every Lennox air conditioner thermostat problem. So, we would like to provide some Lennox air conditioner thermostat troubleshooting tips so that you can try to fix the issue.

Lennox Air Conditioner Thermostat Troubleshooting

Before performing your Lennox air conditioner thermostat problems troubleshooting, first, you should check four things regarding the thermostat.

Is your AC thermostat receiving power?

If your thermostat is turning on and off always and if its backlight is not working properly, you must check whether it is receiving adequate power or not. This is the first thing you must do regarding your thermostat. Generally, the thermostat in your air conditioner will get power from batteries as well as the cooling system. So, you have to ensure that the power coming from both of these sources.

See if the circuit has tripped and is caused the unit to lose power. Once, you have confirmed that everything is fine with the circuit breaker and fuses, you need to go through the batteries replacement. Yes, you must be done the replacement of batteries in your thermostat.

Is your thermostat mounted properly on your wall?

To get the correct reading of your home's temperature, the thermostat should be installed and mounted properly on your wall. When your thermostat shows fault reading, you can check it. By using a bubble level, you can check whether the thermostat is fixed as straight on the wall or not. If it is not placed correctly, you have to adjust it accordingly. Moreover, remember that your thermostat is mounted at least five feet from the floor.

Is your thermostat near hot or cool air sources?

If you are not getting the correct temperature reading of your home on the thermostat, it may has near hot or cool air sources. So, make sure to keep the thermostat away from these types of sources such as windows, vents, direct sunlight, appliances, etc. that can influence the surrounding temperature.

Is your thermostat dirty?

Dirt and dust buildup is a problem for any component of your Lennox air conditioner including the thermostat. So, you need to clean the unit regularly. If the thermostat is malfunctioning, you need to open the cover and clean gently any dirt that has buildup on the inside of the thermostat.

It’s better to first check the above four basic things when you feel that your thermostat in the air conditioner has problems.

Lennox air conditioner suddenly stops running

A malfunctioning thermostat causes sudden changes in your cooling system. So, you should fix it immediately.

Check if there is lighting on the thermostat display. If not, it can't signal the AC to cycle on. In this condition, you need to find the reasons related to why your thermostat is not getting power such as due to dead batteries, tripped circuit breaker, or blown fuse.

Check for buildup of dust, dirt, smoke, etc. A coating on the components can affect the thermostat's normal operation so you have to clean them carefully with a soft brush or canned compressed air.

Inspect the problems with other components such as loose wiring and terminal screws that need to tighten.

Room temperature does not reach the thermostat setting

If there is buildup of grime, it can cause inconsistency between the actual room temperature and temperature setting on the thermostat. However, it may be a good choice that cleaning the unit before taking any further steps.

Improper installation also caused variations in the temperature readings. So, you have to correct it by adjusting the sitting place.

Check if the heat anticipator is stuck if your thermostat is a mechanical model. You can locate this anticipator on a circular dial in the form of a little metal arm. Push the arm carefully in either direction to become free.

Make sure the thermostat is located away from the direct sunlight and other heat & cold drafts.

Continuous Running or Short Cycling

If you get these types of Lennox air conditioner problems, first you should check for two issues with the thermostat. Verify whether it is placed level and dirty inside. As both of these issues can trigger short cycling and cause continuous operation, you have to resolve these by following the instructions given in the manual.

Another possible cause is a poorly calibrated anticipator. Extend the cooling cycle period by adjusting the anticipator arm in single notch increments toward the marking for "longer" on the round dial. Wait until the completion of a full cycle on the air conditioner in between adjustments and see the result.

Final Thoughts

That's all about a few Lennox air conditioner thermostat problems and their troubleshooting tips. If you are unable to resolve the problem with the above tips, you can contact an HVAC professional to determine the cause and solution. If your thermostat is broken, you need to replace it to get the best result.

AMANA DISHWASHER TROUBLESHOOTING

Do you have issues with your Amana dishwasher? If you are looking to fix Amana dishwasher problems, this is your destination. With this article, we are sharing some Amana dishwasher troubleshooting tips for fixing common issues. As dishwasher is the greatest time-saving invention ever, solve the issue quickly with this proper guidance.

Dishwasher Doesn’t Start

Initially, you should check whether the door is completely closed and the latch is secured. Next, see if the delay start has been activated. If these are not caused for dishwasher won't start, following are some more things you have to check.

→   Start or resume light is flashing

When the door was not closed within three seconds after pressing the start/ resume button. So, try to open the washer's door and close it again before pressing the start or resume button.

Moreover, it might be an indication of an interrupted cycle. To resume, make the dishwasher's door is closed and then tap on start/ resume.→   Power supply

Check the plug-in power cord. If your unit is direct wired, be sure that the wiring is properly connected. After that, you need to verify the working of the household electrical box, circuit breaker and fuses.

→   Water supply

If your Amana dishwasher is not starting, you have to check whether the unit is getting hot water or not. Make sure the hot water supply is on. Although, the valve which is leading the dishwasher should be opened.

→   Control lock

This control lock feature protects against accidental use of dishwasher and cycle or option changes during the cycle. For a short period, the control lock will be stayed on when it is activated. All buttons will be disabled and the door could be opened when controls are locked.

Press and hold the control lock button for about three seconds to unlock the controls. If it does not work, you need to disable the sleep mode. For disabling the sleep mode, press either start/ resume or cancel or open & close the door.

If you checked all the above things but didn’t work, now, go with the reset. Simply, disconnect the power source from an outlet and reconnect it after one or two minutes. If your dishwasher is a direct wired, turn off the breaker at the household electrical panel and turn it on after a minute.

Dishwasher Not Filling

The door should shut completely within 3 seconds of pressing start or resume. If the dishwasher cycle has been interrupted by the power outage, again you need to press the start/ resume button to resume the cycle. Along with these, you have to check the following:

→   Water supply valve

The water supply valve of your Amana dishwasher should be on and off properly according to the action.

→   Drain

The loop at the end of the drain hose must be at least 20 inches above the floor.

→   Overflow protection float

You can find this in the front right corner of your dishwasher tub. This piece secures the unit from overfilling so it should be in the correct place to operate. Make sure there are no obstructions in the float area and ensure that the float would move up and down freely.

Dishwasher Odors

If you are observing the food odors in your dishwasher, this is the time to check for food particles stuck on the tub bottom and hard-to-reach areas. To avoid this, you need to run a cycle with vinegar or any dishwasher cleaner.

Over time, you may get a bad smell from garbage disposal if the drain is connected to it. Hence, run the disposal to clean out any debris. After that, clean the dishwasher and disposal as well with an appliance cleaner.

Final Words

Hope you have fixed the basic Amana dishwasher problems with the help of the above guide. If you didn’t get a solution for your issue in our Amana dishwasher troubleshooting, refer to the owner’s manual. Otherwise, contact a qualified technician to get answers for your Amana dishwasher issues.

Johnson Controls A419 Troubleshooting

Johnson A419 Temperature Controller is designed to control HVAC equipment under normal operating conditions. Where failure or malfunction of a Johnson A419 temp control could cause damage to the equipment or other devices like limit or safety controls. If you have issue with your controller, check out our Johnson Controls A419 troubleshooting tips.

Johnson Controls A419 Troubleshooting Guide

Johnson Temperature Control A419 series can be used to control a wide variety of single-stage HVAC or refrigeration equipment. Typical applications include:

Retail stores display freezers, walk-in coolers, and reach-in coolers.

Space and return air temperature control.

Supermarket display cases for products.

Cooling tower pump and fan control.

Condenser fan cycling or staging.

Boiler operating control, used as a thermostat.

Johnson A419 Troubleshooting

If your Johnson controls A419 not working properly, you have to verify it's wiring, and configuration. Also, check whether it is set properly or not. If all these are in good condition, but the problem persists, try the following procedures to determine the cause of the problem.

Check for proper supply voltage to the control

To verify if the Johnson temperature control is receiving proper voltage, go through the below steps.

Loosen the four captive cover screws for removing the cover.

You have to use a reliable AC voltmeter to check the voltage between COM and 120/ 240V terminals on line voltage models. And, verify between the two 24V terminals on low voltage models.

The voltage reading must be between 177-264 VAC for 208/240-volt applications, 102-132 VAC for 120-volt applications, and 20-30 VAC for 24-volt applications.

If the voltage reading is not within the specified range, check the power source & input power wires.

Check for proper sensor operation

Before going to verify the operation of the sensor, you should disconnect all power sources to control.

By using an accurate thermometer, you have to note the temperature reading at the sensor location.

Now, disconnect the sensor from control.

Using an ohmmeter, measure the resistance across the two sensor leads while the sensor is at the temperature taken as before step.

Refer to the manual to verify that the measured temperature and resistance matched with established temperature and resistance values.

If the sensor's measured resistance value is different from the expected value for that temperature, then, your job is to inspect the sensor wiring. If that wiring is okay, you will go through the sensor replacement.

Mounting Instructions

To avoid installation instructions, refer to the below steps and know the correct mounting process.

A Johnson A419 controls has either a NEMA 4X corrosion-resistant watertight or standard high-impact plastic NEMA 1. This control is not position sensitive, but you should mount it for convenient wiring and adjustment.

When mounting the A419 temp control to rigid conduit, you need to attach the hub to the conduit before securing the hub to the control enclosure.

NEMA 1 mounting hole pattern is identical to that of the system 350 controls and models of the A19 control. The NEMA 1 enclosure can be mounted on a 35 mm DIN rail. The NEMA 4X models will be mounted on flat vertical surfaces using the four screw holes at the enclosure corners.

Use a conduit fitting rated for the environment in which the control is installed to maintain the watertight and corrosion-resistant integrity of the NEMA 4X enclosure.

An additional two-wire cable is needed to operate the temperature offset function. For NEMA 4X enclosures, you should install a suitable liquid tight-fitting in an available knockout to pass the two-wire cable through the enclosure wall.

In addition to the mounting instructions, you should know how to wire Johnson controls a419. Refer to the owner’s manual to get wiring instructions.  

Conclusion

That's all about the Johnson Controls A419 troubleshooting procedure. If your system doesn't work even after performing the above steps, contact an authorized Johnson Controls technician. We hope this guide helped you to finish your job quickly and easily. Stay in touch with us to get more troubleshooting guides on HVAC equipment and their components.