Bomann
Compressor or Condenser Fan Noise
Freezer is making a loud humming or buzzing noise from the back, especially when the compressor starts.
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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 motor, Loose compressor mounting feet, Worn condenser fan motor bearings, Fan blade hitting shroud
How to Fix / Troubleshooting
Safety: Unplug the freezer before touching the compressor or fan. Components may be hot.
Steps:
- 1. Identify noise source: Briefly power the unit and listen at the back to determine if the noise comes from the compressor or fan, then unplug.
- 2. Check condenser fan: Remove the rear panel. Spin the fan blade by hand; it should move freely without scraping. Tighten loose screws and reposition the shroud if the blade rubs.
- 3. Replace noisy fan motor: If the fan is rough or wobbly, replace the condenser fan motor with a Bomann-compatible part.
- 4. Inspect compressor mounts: Ensure rubber grommets under the compressor are intact and screws are snug but not overtightened. Replace damaged mounts.
- 5. Compressor noise: If the compressor itself is excessively loud or knocking, it may be failing. Continued operation can lead to total loss of cooling—consult a technician for compressor replacement.
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Repair Difficulty
Medium
3/5
Required Part
Condenser Fan Motor
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