How to Know If Your Refrigerator Compressor Is Failing

After 25 years of repairing refrigerators across Simi Valley and Ventura County, Larry Bezman has seen more failed compressors than he can count. The tricky part? A failing compressor often gives you warning signs weeks before it completely quits — if you know what to look for.

Warning Signs of a Failing Refrigerator Compressor

1. The refrigerator isn't cooling properly

If your refrigerator temperature is inconsistent — some areas too warm, others fine — this is often the first sign of compressor trouble. The compressor is responsible for circulating refrigerant throughout the system. When it weakens, cooling becomes uneven.

2. Loud clicking or humming sounds

A healthy compressor runs quietly. If you hear a loud click followed by the refrigerator shutting off, or a constant humming noise, the compressor may be struggling to start or maintain pressure. This is often caused by a worn start relay — a small, inexpensive part that Larry can replace quickly.

3. The refrigerator runs constantly

Refrigerators cycle on and off throughout the day. If yours runs non-stop without shutting off, it may be working overtime to compensate for a weak compressor that can't maintain temperature efficiently.

4. The back of the refrigerator feels excessively hot

Some heat behind the refrigerator is normal. But if the area feels extremely hot to the touch, the compressor is likely overworking — a sign it's under stress.

5. Your electricity bill spikes unexpectedly

A struggling compressor uses significantly more power. If your utility bill increases without explanation, your refrigerator could be the culprit.

Is a Compressor Repair Worth It?

This depends on the age and brand of your refrigerator. For premium brands like Viking, Sub-Zero, or Thermador — which can cost $5,000–$15,000 to replace — compressor repair is almost always worth it. For older standard units nearing the end of their lifespan, replacement may make more sense.

Larry will always give you an honest assessment. He'll never recommend a repair that doesn't make financial sense for your situation.

What to Do If You Suspect Compressor Issues

Don't wait until the compressor completely fails and your food spoils. Call Larry at (805) 253-2434 at the first sign of trouble. Most compressor start relay replacements are completed same-day and cost significantly less than you'd expect.