Microwave turntable does not rotate during cooking, but heating still occurs.

Safety: Unplug the microwave before accessing the turntable motor from below.

• Check setup: Ensure the glass tray is seated correctly on the turntable coupler and support ring. Remove any food debris under the tray.
• Manual rotation: With the unit off, try rotating the glass tray by hand. It should turn smoothly. Binding or grinding suggests a mechanical obstruction or damaged coupler.
• Inspect coupler and support: Remove the glass tray and support ring. Inspect the plastic coupler for cracks or wear. Replace if damaged.
• Test motor: Access the bottom of the microwave (often by removing the bottom panel) and test the turntable motor for continuity with a multimeter. Replace if open or seized.