Kenmore Compressor Mount or Refrigerant Line Vibration

Refrigerator makes loud knocking or banging noise 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 bolts, Copper refrigerant lines contacting cabinet, Worn rubber mounting grommets, Internal compressor noise

How to Fix / Troubleshooting

Safety first: Unplug the refrigerator before adjusting any components.

Steps:

  • 1. Access compressor area: Remove the rear lower panel.
  • 2. Check compressor mounts: Ensure mounting bolts are snug but not overtightened and that rubber grommets are not missing or deteriorated.
  • 3. Inspect refrigerant lines: Look for copper lines touching each other or the cabinet. Gently bend them away to create clearance, using care not to kink the tubing.
  • 4. Test noise: Replace the panel, plug in, and listen. If knocking persists and appears internal to the compressor, it may be normal aging noise or indicate compressor wear, which would require professional evaluation.
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Repair Difficulty

Medium 3/5
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