Panasonic
Mechanical Vibration / Fan or Turntable Noise
Microwave is very noisy during operation, with rattling or grinding sounds, but still heats.
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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
Debris in cooling fan, Worn fan motor bearings, Misaligned or damaged roller ring, Loose internal panels
How to Fix / Troubleshooting
Safety: Unplug the microwave before inspecting internal-accessible parts like the turntable area.
Steps:
- Check turntable system: Remove the glass tray and roller ring, clean them and the cavity floor, and inspect for cracks or flat spots on the rollers.
- Test without tray: Run the microwave briefly with only a cup of water and no tray to see if the noise changes.
- Listen to fan area: If the noise comes from the rear or side, the cooling fan may be obstructed or worn.
If noise persists or worsens: A technician should inspect the fan motor and internal mounting hardware.
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Repair Difficulty
Medium
3/5
Required Part
Cooling Fan Motor
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