Fridge Making Strange Noises? Here’s What They Mean
Buzzing, clicking, gurgling or knocking — your fridge’s noises are clues. Here’s what each sound usually means.
Fridges are never completely silent, but a change in the noises yours makes is often the first warning of a developing fault. Learning to read the sounds helps you act before a small problem becomes a breakdown.
Normal sounds you can ignore
- Gentle humming from the compressor running.
- Gurgling or trickling as refrigerant moves through the system.
- Occasional cracking as parts expand and contract with temperature.
Sounds worth investigating
- Loud buzzing or rattling — often a loose panel, or the compressor working harder than it should.
- Rapid clicking every few minutes — usually a start relay failing to start the compressor.
- Grinding or squealing — a worn evaporator or condenser fan motor.
- Persistent knocking — a failing compressor mount.
What to check first
Make sure the fridge is level and not touching the wall or cabinets, and that nothing is vibrating against it. Clean dust from the condenser coils, which makes the compressor run louder and hotter.
When to call a technician
Clicking without cooling, or grinding and squealing from a fan, should be checked promptly. Caught early, a relay or fan motor is an inexpensive fix; ignored, it can lead to a warm fridge and lost food.
Frequently asked
That clicking is usually the start relay trying and failing to start the compressor. It is a common, affordable repair — but left alone it can leave your fridge warm.
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