When your Whirlpool oven light is out, the problem may be the oven control board, light assembly, light bulb, halogen lamp, light socket, or light housing. Although a defective control board is not common, it supplies voltage to many oven components, including the light. Test the light socket or assembly for power and verify the light switch has continuity with a multimeter. If the switch works but the control board is not sending voltage, replace the control board. Next, inspect the light assembly, since some components are not sold separately. A burned-out oven light bulb or failed halogen lamp can cause an oven light not working problem, so test the bulb or lamp for continuity or install it in an identical socket. If power reaches the socket but the oven bulb stays dark, replace the light socket. If the bulb or light board works but the oven light is still out, the light housing may be faulty. For the correct Whirlpool oven light replacement, enter your model number to find the exact part for your range, stove, or oven.
01 - Whirlpool 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.