Microwave is unusually noisy with rattling or vibration sounds coming from the cabinet during operation.

Safety: Unplug the microwave before tightening any screws or removing panels.

Steps to reduce vibration:

• 1. Check placement: Ensure the microwave is on a stable, level surface with all feet contacting the counter. Use a spirit level if available.
• 2. Tighten external screws: Inspect and gently tighten accessible screws on the outer cabinet and door handle.
• 3. Test with and without turntable: Run briefly with the turntable removed (with a small cup of water on the floor) to see if the noise changes. If it does, inspect the tray, ring, and coupler.

Technician-level checks:

• 4. Tighten internal mounts: With the cover removed, tighten mounting bolts for the transformer, magnetron, and fan assembly.

If loud vibration persists, internal components may be failing and should be inspected by a professional.