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Thermador Microwave shuts off after a few seconds

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Common solutions for: Thermador Microwave shuts off after a few seconds
Solution 1:
Door Switch
A door switch might be failing intermittently. Check each of the door switches for signs of overheating, arcing, or burning. If you don’t see any obvious signs of failure, use a multimeter to test...
Required Part
Microwave Door Switch
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Solution 2:
Main Control Board
Control boards are often misdiagnosed—before replacing the control board, first check more commonly defective parts, particularly the door switches. If all of the other components are working...
Required Part
Microwave Main Control Board
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Solution 3:
Touchpad and Control Panel
To determine if the touchpad and control panel are defective, try pressing each of the buttons on the control panel. If some of the buttons respond correctly while others don’t, replace the touchpad...
Required Part
Microwave Touchpad and Control Panel
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Solution 4:
Touchpad
If the microwave runs for a few seconds and stops the touchpad might be at fault. This is not common. Generally speaking, if the microwave display is working and some of the buttons respond correctly...
Required Part
Microwave Touchpad
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Solution 5:
High Voltage Transformer
Microwave ovens produce a very high voltage in order to power the magnetron antenna, which emits the energy that cooks the food. When a high voltage transformer fails, it will usually arc and have a...
Required Part
Microwave High Voltage Transformer
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Solution 6:
Thermoprotector
If the microwave runs for a few seconds and stops the thermoprotector may have tripped. This is a safety device to prevent the microwave from overheating. It can be tested for continuity to see if...
Required Part
Microwave Thermoprotector
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Solution 7:
Thermostat
If the microwave runs for a few seconds and stops the thermostat might be defective. Watch our video on testing thermostats.
Required Part
Microwave Thermostat
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