Microwave turntable does not rotate, but heating still occurs.

User-level checks:

• Remove the glass tray and roller ring. Clean both thoroughly and wipe the cavity floor.
• Inspect the turntable coupler (plastic piece on the motor shaft) for cracks or wear.
• Reinstall the roller ring and tray, ensuring they sit flat and centered.
• Start a short cycle and observe if the tray now rotates.

If the tray still does not turn:

• The turntable motor or coupler is likely faulty and must be replaced from underneath the cavity by a technician.