Proline
Compressor Mounting or Internal Mechanical Noise
Freezer makes a loud knocking or banging noise when the 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, Compressor pipes hitting cabinet, Internal compressor wear causing knock, Cabinet panels flexing
How to Fix / Troubleshooting
Safety first: Unplug the freezer before working near the compressor.
Steps to address knocking:
- 1. Access compressor area: Remove the rear lower panel to expose the compressor and mounting feet.
- 2. Tighten mounts: Check that the compressor mounting bolts or rubber grommets are secure. Tighten gently; do not overtighten and crush the rubber.
- 3. Check piping clearance: Ensure refrigerant lines are not touching the cabinet or each other. Carefully adjust their position to provide clearance.
- 4. Observe operation: Briefly power the unit and listen to the compressor starting and stopping. If the knock is internal to the compressor and persistent, it may indicate wear; continued operation is usually safe but noisy. Replacement would require a professional.
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Repair Difficulty
Medium
3/5
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