Refrigerator Making Loud Humming Noise

Problem
A loud humming sound comes from the refrigerator while it is running.

Possible Causes
Dirty condenser coils
Evaporator fan malfunction
Compressor strain

How To Fix It
Clean condenser coils behind the refrigerator
Ensure the unit is not touching the wall
Check that the refrigerator is level

When To Call A Professional
Persistent humming may indicate compressor or fan motor issues.

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