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Thermador Microwave display not working

If your Thermador microwave display is not working, start by checking whether the control panel buttons respond. A defective control module is the most likely cause when the microwave screen is blank, the clock display is dark, or none of the buttons work correctly. If your model does not use a separate display board, the touchpad and control panel may be faulty instead. A display that is partially out, has missing segments, or fades usually points to a defective display board. If the display is completely out, either the main control board or display board could be responsible. Also confirm the microwave is plugged in, test the wall receptacle with another small appliance, and check for a tripped circuit breaker. A control board can also fail when it has power but does not operate the digital display. Enter your model number to find the exact replacement control module, touchpad, control panel, main control board, or display board for your Thermador microwave. Replacing an internal board requires opening the outer cabinet. The high-voltage capacitor can store a lethal charge even after the microwave is unplugged, so it must be properly discharged before interior work. If you are not familiar with capacitor discharge procedures, use a qualified technician.

01 - Thermador Microwave Control Module

A malfunctioning display could be caused by a defective control module. Try pressing each of the buttons on the control panel. If none of the buttons are responding correctly, it is likely the control module is defective and will need to be replaced.
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02 - Thermador Microwave Touchpad and Control Panel

If the microwave does not have a separate display board, then the display not working is likely caused by a defective touchpad and control panel.
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03 - Thermador Microwave Main Control Board

If the display goes out partially, the display board is more commonly at fault. If the display isn’t working at all, either the main control board or the display board could be at fault.
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04 - Thermador Microwave Display Board

If the display isn’t working at all, either the main control board or the display board could be at fault. If the display goes out partially, the display board is more commonly at fault.
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05 - Incoming Power Problem

Confirm the microwave is plugged in and there is power at the wall receptacle. You can plug another small appliance into the receptacle to confirm there is power. If there is no power, confirm the circuit breaker has not tripped.
Highly Likely

06 - Thermador Microwave Control Board

Since the control board is a part of the digital display, a defective board could be responsible for a microwave display not working, if the control board has power to it but the display is not working replace the control board.
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Common

Frequently Asked Questions

Why is my Thermador microwave display not working or completely blank?
Why does my Thermador microwave display have missing segments or only part of the screen works?
Can a bad touchpad or control panel cause my Thermador microwave display to stop working?
How do I find the correct Thermador microwave display board or control board replacement?
Is it safe to repair a Thermador microwave with a blank display myself?

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