Safety first: Unplug the microwave before accessing the bottom panel.

Steps:

1. Remove glass tray and roller ring: Check for food debris, broken glass, or warped plastic that could jam rotation. Clean thoroughly.
2. Inspect coupler: The turntable coupler (plastic hub) should be firmly seated and not cracked. Replace if damaged.
3. Test rotation: With the tray removed, start a short cook cycle and observe the coupler from above (through the cavity). If it does not turn and E10 appears, the motor or its circuit is faulty.
4. Access motor (experienced DIYers): Remove the microwave from power, then remove the bottom cover. Locate the turntable motor mounted under the cavity floor.
5. Check motor: Inspect for burnt smell or discoloration. Test motor coil resistance with a multimeter; replace if open or shorted.

Note: Ensure the replacement motor matches the original MasterChef part number and voltage rating.

Microwave shows E10 and beeps; turntable may not rotate and fan may not start.

Possible Causes