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HomeRepair HelpThermador Oven RepairThermador Oven won't turn off Repair
Thermador Oven won't turn off
Won’t your Thermador oven turn off? Shut off the power or unplug the oven and let it cool before testing parts. The most likely cause is a failed Range/Stove/Oven touchpad and control panel or touchpad. A shorted touchpad can continue sending commands to the control board. Disconnect the touchpad ribbon from the control board, restore power, and check whether the oven starts heating again. If it does not, the touchpad or control panel is likely defective. Next, consider the temperature control thermostat, although this is less common. The thermostat monitors oven temperature and cycles heat, so a failure can affect normal operation. If the thermostat is not the problem, a stuck relay in the oven control board may send continuous voltage to the bake or broil circuit. A shorted bake element or broil element can also cause a Thermador oven to keep heating. Inspect each element for holes or blisters, and use a multimeter to check for a short to the outer case. Enter your model number to find the exact replacement touchpad, control panel, thermostat, control board, bake element, or broil element for your Thermador oven.
01 - Thermador Range/Stove/Oven Touchpad and Control Panel
If the oven won't turn off, it's possible that the touchpad has shorted or is malfunctioning in some other way. To help determine this, shut off the power to the appliance to allow it to cool down and disconnect the touchpad ribbon from the control board. Restore power to the unit and observe whether or not the oven turns on with the touchpad ribbon disconnected. If the oven does not turn on, it's likely the touchpad is the source of the problem and the component will need to be replaced.
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02 - Thermador Range/Stove/Oven Touchpad
If the oven won't turn off, you should unplug the power cord or shut off the power supply and let the oven cool down. Disconnect the touchpad ribbon from the control board and restore power to the oven. If the oven does not start to heat back up with the touchpad ribbon disconnected, the touchpad is likely defective and will need to be replaced.
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03 - Thermador Range/Stove/Oven Temperature Control Thermostat
The temperature control thermostat monitors the temperature inside the oven and cycles on the heat when the oven temperature gets too low. If the temperature control thermostat fails, the oven won’t heat. However, this is not very common. Before replacing the oven thermostat, first check more commonly defective components—specifically the igniter and the bake and broil elements. If these components are not defective, the temperature control thermostat might be at fault. The temperature control thermostat cannot easily be tested. If you suspect the thermostat is defective, replace it.
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04 - Thermador Range/Stove/Oven Oven Control Board
The oven control board has relays that send voltage to the bake and broil circuits according to the user settings and sensor input. If one of the control board relays shorts closed, the control board may send continuous voltage to the heating circuit. If the oven continues to heat after it is turned off, the control board is likely defective. If the control board is defective, replace it.
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05 - Thermador Range/Stove/Oven Bake Element
Sometimes, if the heating element burns out, it can short out to the inside of the oven. If the heating element has shorted out, the oven will not turn off. Often, if the bake element has shorted out, it will be visibly damaged. Inspect the heating element for holes or blisters. To determine if the bake element has shorted out, use a multimeter to test the element for continuity. If the bake element does not have continuity, replace it.
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06 - Thermador Range/Stove/Oven Broil Element
If the broil element is shorted out, the oven may not turn off. Often, if the element has shorted out, it will be visibly damaged. Inspect the broil element for holes or blisters. To determine if the broil element is shorted out, use a multimeter to test the element for continuity. If the broil element shows continuity from the terminals to the outer case, this indicates that it is shorted out. If the broil element is shorted out, replace it.
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Frequently Asked Questions
Why won't my Thermador oven turn off?
How do I test a Thermador oven bake or broil element that won't turn off?
Could the Thermador oven touchpad cause the oven to keep heating?
Is the Thermador oven temperature thermostat causing the oven not to turn off?
How do I find the correct Thermador oven part for this repair?
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