Indicators of a Faulty Inverter Board in a Refrigerator

Posted By On 12-10-2022

A refrigerator's inverter board is responsible for supplying power to the fridge's compressor. If the inverter board is faulty, it can cause the compressor to overheat and eventually fail. A few indicators can assist you in determining if your fridge's inverter board is defective and in need of replacement.

Factors for Inverter Compressor Failure

1. Mismatched Wiring and a Lack of In-Line Fuses

If you've ever had a compressor fail, you know how frustrating it can be. It is a pain to replace the compressor, but it can also be expensive. In some cases, compressor failure is due to mismatched wiring or a lack of in-line fuses.

The wiring must be carefully matched to the new unit when replacing the compressor. If the wrong wiring is used, the compressor can overheat and fail.

Another usual cause of compressor failure is a lack of in-line fuses. In-line fuses protect the compressor from electrical surges. Without them, the compressor can be damaged by an electrical surge.

If you're having problems with your compressor, make sure to check the wiring and the fuses. With proper maintenance, your compressor should last for many years.

2. Failure Due to Faulty Assembly

Oil leaks are one of the most common problems when an inverter compressor is not assembled correctly. Oil leaks can cause the compressor to overheat and eventually fail. In addition, oil leaks can also contaminate the refrigerant, which can cause the compressor to fail as well.

Another common problem when an inverter compressor is not assembled correctly is vibration. Vibration can damage the compressor over time and eventually cause it to fail.

It is essential to ensure that the inverter compressor is assembled correctly to avoid these problems. If you are not sure how to build the compressor, it is best to consult with a professional.

3. Mistakenly Choosing The Wrong Cables

Inverter compressors are becoming increasingly popular as they offer a more efficient way to cool your home or office. However, they also require special cables to work correctly.

If you use the wrong cables, your inverter compressor could fail. The faulty wires can cause a voltage drop, damaging the compressor.

To avoid this, use the correct cables for your inverter compressor. If you're unsure which cables to use, consult your compressor's manual or contact the manufacturer.

4. Warning Signs of a Malfunction

Failure of the refrigerator's inverter board might result in inadequate cooling capacity or supply, which can spoil any perishable items stored inside. Watch out for the following warning signs to know if the inverter board needs to be checked:

  • The presence of a clicking noise
  • Issue with defrosting
  • The inverter won’t power on
  • No cooling is present
  • The evaporator fan has stopped functioning
  • A significant temperature swing
  • The fan’s motor is extremely loud


There are several indicators of a faulty inverter board in a refrigerator. If you observe any of these issues and problems with your fridge, it's best to contact a qualified repair technician to have the inverter board checked and replaced if necessary.

You can count on Pro Appliance to fix any problems you're having with your home appliances. For any urgent appliance repair service in Toronto, you can count on us. Contact us today to request a service.

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