Café
Compressor or Line Vibration Noise
Freezer makes a loud banging or knocking sound when compressor starts or stops
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Loose compressor mounting hardware, Refrigerant lines striking cabinet, Internal compressor mechanical wear
How to Fix / Troubleshooting
Safety first: Unplug the freezer before working around the compressor area.
- Check mounting hardware: Inspect the compressor mounting bolts and rubber grommets. Tighten loose bolts and replace cracked or missing grommets.
- Isolate tubing: Identify any copper lines that move or strike the cabinet when the compressor starts or stops. Gently reposition them and use foam or clips to prevent contact.
- Monitor operation: If the noise persists but cooling is normal, it may be due to internal compressor wear. This is generally not repairable and would require compressor replacement by a professional if it worsens.
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Repair Difficulty
Hard
4/5
Required Part
Compressor Mounting Grommets
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