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Refrigerator Compressor Problems: Signs, Causes and What to Do
29 Oct 2026 · 2 min read
Is your fridge running constantly, clicking or not cooling? Learn the common signs of compressor trouble, the parts that look similar and when to call a te…
Overview
The compressor is the heart of a refrigerator. It circulates the refrigerant that removes heat from inside the fridge. Compressor faults can be serious, but many problems that look like a failed compressor are actually smaller and cheaper parts. This guide helps you describe the problem clearly to a technician.
Common signs
The fridge is not cooling, but the light and the fan work.
The compressor runs all the time and never switches off.
A clicking sound is heard every few minutes, and then the fridge goes quiet.
The back or side of the fridge feels unusually hot.
The MCB trips or the fridge shuts off soon after it starts.
A loud buzzing or rattling noise from the back.
Parts that are often mistaken for a bad compressor
Start relay or overload protector. A worn relay can stop the compressor from starting, with a clicking sound.
Thermostat or temperature sensor. A faulty one can cause no cooling or constant running.
Condenser coil covered in dust. It makes the compressor work harder and run hot.
Cooling fan on the compressor side or the evaporator fan.
Door gasket that does not seal. Warm air leaks in and the compressor keeps running.
Low refrigerant because of a leak.
Simple checks before you call
Make sure the plug and the power supply are fine and that the voltage is stable.
Check that the door closes fully and the gasket is clean and tight.
Keep space of a few inches behind and beside the fridge for airflow.
Do not overfill the fridge and do not keep hot food inside.
When to call a technician
If the compressor clicks and does not start, runs without cooling or the fridge trips the power, switch it off and have it checked. A proper test of the relay, the compressor winding and the refrigerant circuit tells whether a small part or the compressor itself has failed.
A clicking sound followed by silence is often a worn start relay or overload protector, although it can also point to the compressor. A technician can test each part to find out.
Is a fridge that runs all the time a sign of a bad compressor?
Not always. A dirty condenser, a weak door seal, a faulty thermostat or low gas can make the compressor run continuously.
Should I keep using a fridge that is not cooling?
It is better to move food to another cooler and have the fridge checked, because running a faulty compressor can damage it further.
Need a technician in Lucknow?
RR Cooling Point visits homes, shops and offices across Lucknow. We inspect the fault, explain it and share the cost before any work starts.