Ikea Compressor Start or Mounting Noise

Freezer makes loud buzzing or humming noise from the compressor area.

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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

Failing compressor, Loose compressor mounting springs, Faulty start relay causing repeated starts, Refrigerant lines vibrating against cabinet

How to Fix / Troubleshooting

Safety: Unplug before touching the compressor or tubing.

Steps:

  • 1. Isolate noise source: Listen at the rear to confirm the noise is from the compressor area, not the fan.
  • 2. Check mounting: Ensure the compressor mounting grommets and springs are intact and that the compressor is not touching the cabinet directly.
  • 3. Inspect tubing: Look for copper lines touching each other or the cabinet. Gently bend them apart slightly to stop vibration, taking care not to kink or crack them.
  • 4. Start relay: If the compressor hums briefly then clicks off repeatedly, replace the PTC start relay and capacitor (if fitted).
  • 5. Compressor condition: If noise persists and cooling is poor, the compressor may be failing and require professional replacement.
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Repair Difficulty

Hard 4/5

Required Part

Compressor Mounting Kit / Start Relay
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