How to Fix / Troubleshooting

Safety first: Unplug the microwave before touching any parts.

Steps to reduce noise:

1. Check turntable assembly: Ensure the glass tray and roller ring are seated correctly and not wobbling.
2. Level the microwave: Make sure the unit sits flat on a stable surface; adjust feet if provided.
3. Inspect exterior panels: Gently press on the top and sides while the unit is running (use caution, do not cover vents). If noise changes, a panel may be loose and need tightening (technician task).
4. Listen to fan: If the noise is a whine or scraping from the vent area, debris may be in the fan or the fan motor may be failing.

Next step: If noise persists or worsens, have a technician inspect internal mounts, fan assembly, and transformer.

Microwave is excessively noisy during operation (rattling, vibration, or fan noise).

Possible Causes