OK
Mechanical Noise from Fan, Turntable, or Cavity Components
Microwave is excessively noisy; rattling, grinding, or scraping sounds
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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, Damaged roller ring or coupler, Loose internal panels or screws
How to Fix / Troubleshooting
Safety: Unplug the microwave before internal inspection.
- 1. Isolate noise source: Run the microwave briefly and listen to determine if the noise is from the top, side, or bottom.
- 2. Check turntable system: Remove the tray and roller ring. Clean and inspect for damage. Run a short cycle without the tray to see if noise disappears.
- 3. Inspect cooling fan: Remove the cover and check the fan blades for debris or bent blades rubbing against the shroud.
- 4. Tighten hardware: Tighten any loose screws on internal panels, magnetron, and transformer mounts.
- 5. Replace worn parts: Replace noisy fan motors, damaged roller rings, or couplers.
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Repair Difficulty
Medium
3/5
Required Part
Cooling Fan Motor
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