When your oven light is not working, start by checking the light switch (if present) or the oven control board, although a failed board is not the most common cause. The control board sends voltage to the light bulb or light assembly, so use a multimeter to check 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 some models require the complete assembly when individual components are not sold separately. A burned-out oven light bulb or halogen lamp is another common cause. Test the bulb or lamp for continuity, or install it in an identical socket. If the oven light socket receives power but the light remains off, replace the light socket. If the bulb or light board tests good, the light housing may be faulty. Always disconnect power before testing or replacing parts. Enter your model number to find the exact oven light bulb, light assembly, halogen lamp, light socket, light housing, or control board for your specific range, stove, or oven.
01 - Universal 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.
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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.
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.
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.