If your KitchenAid refrigerator is not cooling, then it could be due to a number of different problems. If you check each of the components that we list in this article, you should be able to find the culprit and fix it. Thankfully, most of the components are quite straightforward to fix.
This guide covers most major models of KitchenAid refrigerators, including:
4KFRF19MTW00
4KSRF22DTW00
4KSRF36DTX1
4KSRF36DTX2
4KSRF42DTX2
4KSRS22QAA01
KSRD25FKBL14
KSRD25FKBL15
KSRD25FKBL16
KSRD25FKBT14
KSRD25FKBT15
KSRD25FKBT16
KSRD25FKSS14
KSRD25FKSS15
KSRD25FKSS16
KSRD25FKST15
KSRD25FKST16
KSRD25FKWH03
KSRD25FKWH14
KSRD25FKWH15
KSRD25FKWH16
The condenser coils help keep the refrigerator cool by dissipating heat when the refrigerant passes through them. Sometimes they get dirty, and this adversely affects their ability to keep your refrigerator cool.
To check the coils:
If the condenser coils are fine, the next component to check is the condenser fan. The purpose of this fan is to spread air through the condenser coils onto the compressor. When it stops working, your refrigerator won’t cool.
Here’s how to check the condenser fan motor:
Your refrigerator will also have an evaporator fan motor. Like the condenser fan motor, this one can sometimes become faulty, which stops your refrigerator from being able to cool.
To check the evaporator fan motor:
The next component to check is the start relay. It helps your refrigerator cool by working with the start winding to start the compressor.
Here’s how to check if it is faulty:
Another possible cause is a faulty temperature control thermostat. This component is very important because it directs voltage to the compressor, evaporator fan motor, and condenser fan motor.
Here’s how to check the temperature control thermostat:
The next component to check is the start capacitor. This component is important because it provides a boost of power to the compressor when it is trying to start up. When it becomes faulty, your refrigerator won’t be able to cool.
Here’s how to test it:
The thermistor is the next component to check. This component monitors the refrigerator temperature, which it then sends to the control board. If it becomes faulty, it might send the wrong temperature reading, and this will adversely affect your refrigerator operation.
To check the thermistor:
The compressor helps to circulate refrigerant through the evaporator and condenser coils. Sometimes it can become faulty (but not very often) and will have to be replaced.
Here’s how to test the compressor:
The temperature control board helps the compressor and fan motors to operate by providing voltage to them. When it fails, it will stop your cooling system from working correctly. The temperature control board very rarely breaks down, so only consider replacing it if you’ve tried all of the other components listed in this article. Once you’ve replaced the board, check to see if the problem has been solved.
The final repair you can try if you’ve tried everything else to get your refrigerator working correctly is to replace the main control board. It very rarely is the cause of this problem, so it might be best to purchase a new refrigerator.
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