What causes a fridge compressor to stop working?

Answered by Randy McIntyre

There are several factors that can cause a fridge compressor to stop working. One common cause is overheating. If the compressor is not properly cooled, it can overheat and eventually fail. This can be caused by a dirty condenser coil, which prevents proper airflow and heat dissipation. It can also be caused by a malfunctioning condenser fan motor, which is responsible for drawing air over the condenser coil.

Another possible cause of compressor failure is electrical issues. If there is a problem with the power supply or electrical components of the fridge, it can lead to compressor failure. This could be due to a faulty start relay or capacitor, which are responsible for providing the initial surge of power to start the compressor. It could also be caused by a faulty thermostat, which controls the operation of the compressor.

Refrigerant issues can also lead to compressor failure. Too little or too much refrigerant in the system can put strain on the compressor and cause it to fail. Too little refrigerant is often caused by a refrigerant leak, which can occur due to aging or damaged components. It can also be caused by an insufficient charge from the last technician who serviced the fridge.

On the other hand, too much refrigerant can occur if the system was overcharged during servicing. This can lead to increased pressure and strain on the compressor, eventually causing it to fail. It is important for technicians to accurately measure and charge the refrigerant to ensure optimal performance and prevent compressor failure.

Another possible cause of compressor failure is mechanical issues. This can include worn or damaged compressor components such as valves, pistons, or bearings. These components can wear out over time due to normal use or improper maintenance. Additionally, excessive vibration or misalignment of the compressor can also lead to failure.

In some cases, compressor failure can be attributed to a combination of factors. For example, a dirty condenser coil combined with low refrigerant levels can cause the compressor to overheat and fail. It is important to address and resolve any underlying issues to prevent compressor failure and prolong the life of your fridge.

There are several potential causes of fridge compressor failure, including overheating, electrical issues, refrigerant problems, and mechanical issues. It is important to properly maintain and service your fridge to prevent these issues and ensure the smooth operation of the compressor.