How can I tell if my refrigerator compressor is bad?

The refrigerator compressor is the heart of the refrigerator. Its primary function is to compress the refrigerant, circulating it inside the refrigerator to achieve cooling. If your refrigerator is experiencing problems, the compressor is likely at fault. Understanding the signs of a bad refrigerator compressor can help you more effectively diagnose the problem and decide whether to repair or replace it.

The refrigerator is constantly running

Normally, the refrigerator compressor starts and stops periodically to maintain the set temperature inside the refrigerator. If your refrigerator seems to be constantly running and you don't hear the compressor stop, this could be a warning sign. This indicates that the refrigerator compressor may be working hard but unable to achieve the required cooling effect, which can cause wear and tear on the compressor and eventually lead to failure.

The refrigerator is not cooling enough

This is one of the most common symptoms of a bad refrigerator compressor. If the food inside the refrigerator is not cooling properly or the freezer isn't icy as it used to be, the refrigerator compressor may not be compressing the refrigerant properly. This results in a disrupted or inefficient refrigeration cycle, affecting the refrigerator's overall performance.

Hearing unusual noises

A healthy refrigerator compressor typically makes a low, humming sound when starting and running. However, if your refrigerator compressor makes unusual noises, such as clicking, rattling, or a high-pitched squeal, this could indicate a problem with its internal mechanical components. These noises could be caused by loose parts, wear, or insufficient lubrication within the refrigerator compressor.

The compressor feels hot to the touch

During normal operation, the refrigerator compressor generates heat, so it's normal for it to feel slightly warm. However, if the compressor casing feels extremely hot, even burning, it could be overheating. Overheating is usually caused by compressor overload, poor ventilation, or internal component failure, which can ultimately cause the refrigerator compressor to burn out.

Your circuit breaker keeps tripping

If your refrigerator is the only appliance in your home that repeatedly trips the circuit breaker, it's likely related to the refrigerator compressor. The compressor generates a large power surge when it starts up. If its internal coil is shorted or its motor is damaged, it may draw excessive current, causing the circuit breaker to trip for safety reasons.

If you notice any or more of these signs in your refrigerator, the refrigerator compressor is likely damaged or about to fail. In this case, it's best to contact a professional repair technician for an inspection. Diagnosing and fixing problems early not only prolongs the life of your refrigerator but also prevents more expensive repairs.