Unlock the Right Part
for Your Repair
Find the exact part you need
Enter your model number to see parts that fit your machine.
Price Match Guarantee
In-stock parts ship the same day
365-Day Return Policy
Price Match GuaranteeChoose Product
Identify Problem
03
Find Solutions
HomeRepair HelpThermador Oven RepairThermador Oven light is out Repair
Thermador Oven light is out
When your Thermador oven light is out, start by checking the light switch (if present) or the oven control board, although this is not a common failure. The control board sends voltage to the light bulb or light assembly, so use a multimeter to verify whether power reaches the socket or assembly. If the light switch has continuity but no voltage reaches the light, the oven control board may need replacement. Next, inspect the light assembly, since Thermador may sell the complete assembly instead of individual components. A burned-out oven light bulb or failed halogen lamp is another common cause. Test either part for continuity or install it in an identical socket. If power reaches the socket but the oven light still does not work, replace the defective light socket. A faulty light housing can also prevent the bulb or light board from operating, especially when power is present at the socket. Disconnect power before testing or replacing parts. To find the correct Thermador oven light replacement, enter your model number and we'll show parts that fit your specific oven, including the exact bulb, light assembly, socket, housing, or control board.
01 - Thermador Range/Stove/Oven Oven Control Board
The oven control board is used to send voltage to nearly all of the oven's electrical components including the lights. If the control board is defective, it may be unable to send voltage to the light bulb or light board, although this is not a common problem. You can use a multimeter to determine if power is reaching the light socket or light assembly. If power is not reaching the light socket or light assembly and the light switch tests positive for electrical continuity when tested with a multimeter, then the control board is likely defective and will need to be replaced.
Enter model number to search for the required part specific to your product
Top Solution
02 - Thermador Range/Stove/Oven Light Assembly
If the oven light is out, the entire light assembly may need to be replaced. Often the light assembly components are not sold separately.
Top Solution
03 - Thermador Range/Stove/Oven Light Bulb
To determine if the light bulb has burned out, use a multimeter to test it for continuity, or install the bulb into an identical socket to test it.
Top Solution
04 - Thermador Range/Stove/Oven Halogen Lamp
To determine if a halogen lamp has failed, you can use a multimeter to test it for electrical continuity, or install the lamp into an identical socket to test it.
Top Solution
05 - Thermador Range/Stove/Oven Light Socket
Use a multimeter to test for power to the light socket. If the light socket is getting power, but the oven light won’t work, this indicates that the light socket is defective. If the light socket is defective, replace it.
Top Solution
06 - Thermador Range/Stove/Oven Light Housing
If you've determined the light bulb has not burned out or the light board appears to be functioning normally, it's possible that the light housing the bulb or board is installed in is faulty. Use a multimeter to determine if power is reaching the light socket or light assembly. If power is reaching the socket or assembly, then it's likely the light housing is malfunctioning and will need to be replaced.
Top Solution
Frequently Asked Questions
Why is my Thermador oven light out?
How do I test a Thermador oven light bulb or halogen lamp?
How can I tell whether the Thermador oven light socket or light assembly is bad?
Could the Thermador oven control board cause the oven light not to work?
How do I find the correct Thermador oven light bulb or replacement part?
Shop by Popular Thermador Range/Stove/Oven Models
Our Story
Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.
About Repair Clinic
© 2026 RepairClinic.com