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Is Your Fridge Making a Loud Noise? Here's What It Means

A buzz, a knock, or a grind each point toward a different failing part. Match what you're hearing to the likely cause before it gets worse.

By Ainsley Park3 min read read

Written by Sawyer Kincaid, Lead Technician — True Fix Houston. Factory-trained, EPA-certified, 6 years servicing Greater Houston.

No refrigerator runs completely silent, but a new or unusually loud sound is worth tracking down — the type of noise and where it's coming from tell you a lot.

Grinding or Squealing From the Freezer

This almost always means the evaporator fan motor is on its way out, or its blade has started clipping a buildup of ice.

Fix: The fan motor is a routine, replaceable part.

Buzzing or Humming From the Back

A persistent hum from behind the unit often traces to the condenser fan or a compressor that's struggling to start.

Fix: Clear debris around the condenser fan; if the hum continues along with clicking, have the compressor relay tested.

Knocking or Rattling

Loose drip pans, coiled refrigerant tubing, or a cabinet that isn't sitting level can all vibrate against the floor or nearby surfaces.

Fix: Level the unit and secure anything that's rattling loose.

Not sure what's wrong? Book online — every visit includes a free diagnosis.

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