Choose Product
Identify Problem
03
Find Solutions

Thermador Microwave shuts off after a few seconds

When a Thermador microwave shuts off after a few seconds, the most likely cause is an intermittently failing door switch. Inspect the primary, secondary, and monitor or interlock switches for overheating, arcing, or burning, then test each switch for continuity with a multimeter. Replace any switch that is visibly damaged or has intermittent continuity. A failing micro switch can cause the same microwave stops after 3 seconds symptom, so test those switches as well. If the door switches and micro switches work properly, the main control board may be faulty, although control boards are often misdiagnosed. Next, check the touchpad and control panel. If some buttons respond while others do not, replace the touchpad and control panel. A defective touchpad alone is less common, but it can make a microwave turn off after a few seconds when the display works and only some buttons respond. Replace the control board only after checking these more common causes. Enter your Thermador microwave model number to find the exact replacement part for your appliance. Any repair requiring the outer cabinet to be opened must be handled carefully because the high-voltage capacitor can store a lethal charge even when unplugged. Proper capacitor discharge is required, so use a qualified technician if you are not familiar with the procedure.

01 - Thermador Microwave 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 each switch for continuity. If any of the switches is visibly damaged or only has intermittent continuity, replace it.
Enter model number to search for the required part specific to your product
Top Solution

02 - Thermador Microwave Micro Switch

A micro switch might be failing intermittently. Check each of the micro switches for signs of overheating, arcing, or burning. If you don’t see any obvious signs of failure, use a multimeter to test each switch for continuity. If any of the switches is visibly damaged or only has intermittent continuity, replace it.
Top Solution

03 - Thermador Microwave 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 properly, replace the control board.
Top Solution

04 - Thermador Microwave 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 and control panel.
Highly Likely

05 - Thermador Microwave 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 but some don’t, the problem is with the touchpad.
Highly Likely

06 - Thermador Microwave 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 properly, replace the control board.
Common

Frequently Asked Questions

Why does my Thermador microwave shut off after a few seconds?
Can a door switch cause my microwave to stop running after a few seconds?
Could the Thermador microwave touchpad or control panel be causing it to shut off?
Should I replace the Thermador microwave control board if it keeps shutting off?
How do I find the correct Thermador microwave replacement part?

Shop by Thermador Microwave Parts