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HomeRepair HelpThermador Microwave RepairThermador Microwave turntable not turning Repair
Thermador Microwave turntable not turning
Is your Thermador microwave turntable not turning? The turntable motor is the most likely cause. Unplug the microwave, remove the glass plate and turntable support, then test the motor for continuity with a multimeter. If the motor has no continuity, replace it. Next, inspect the glass tray drive coupling for cracks, worn or stripped teeth, and confirm it is securely fitted on the motor shaft. A damaged glass tray support, also called a turntable roller guide or support ring, can cause the same microwave turntable not turning problem. If the motor does not receive power, the user control and display board or main control board may be defective, although either board is less likely than the motor. Also verify that the turntable option has not been turned off, if your Thermador model includes that setting. A microwave plate not turning can create uneven heating and hot spots, so avoid using it until the problem is corrected. Enter your model number to find the exact replacement turntable motor, coupling, support, or control board for your microwave. Any repair requiring the outer cabinet to be removed must be handled carefully because the high-voltage capacitor can store a lethal charge after unplugging and must be properly discharged. If you are not familiar with capacitor discharge procedures, use a qualified technician.
01 - Thermador Microwave Turntable Motor
Use a multimeter to test the motor for continuity. If the turntable motor does not have continuity, replace it.
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02 - Thermador Microwave Glass Tray Drive Coupling
If the microwave turntable is not turning the glass tray drive coupling could be broken or stripped out. Gently pull the coupling off the drive motor shaft to inspect the drive coupling for damage.
Highly Likely
03 - Thermador Microwave Glass Tray Support
If the microwave turntable is not turning the glass tray support could be broken or stripped out. Gently pull the support off the drive motor shaft to inspect the tray support for damage.
Highly Likely
04 - Thermador Microwave User Control and Display Board
The user control and display board might be defective. However, the turntable motor is much more likely to be at fault. First, test the incoming power to the turntable motor. If the motor is not getting power, the user control and display board may be defective. If the user control and display board is defective, replace it.
Common
05 - Turntable option turned off
When the microwave turntable turns, the food is cooked evenly. If the turntable stops turning there may be hot spots where the microwaves are concentrated in one area. If the turntable is not turning, confirm the turntable option is turned on (if applicable).
Common
06 - Thermador Microwave Control Board
The control might be defective. However, the turntable motor is much more likely to be at fault. First, check the incoming power to the turntable motor. If the turntable motor is not getting power, the main control board may be at fault.
Common
Frequently Asked Questions
Why is my Thermador microwave turntable not turning?
How do I fix a Thermador microwave that is not spinning but still runs?
How can I test the Thermador microwave turntable motor with a multimeter?
Could the Thermador microwave control board be causing the turntable not to turn?
How do I find the correct Thermador microwave turntable part?
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