If your refrigerator light is not working, start simple and work outward: more often the issue is a burned-out bulb or a failed light assembly, so replace the bulb first and then the assembly if the bulb doesn’t restore the light. If the bulb and assembly check out, test the fridge light switch, the door switch, and the light socket with a multimeter to confirm continuity and that power is reaching the socket. The light socket can fail even when it looks fine, and some manufacturers only sell the assembly rather than separate components. A faulty dispenser control board can cause a dispenser light problem, but that’s less likely; inspect the board for burned components or use a meter to see if it’s sending voltage to the light connector before swapping it. Whether you call it refrigerator light not working, fridge light not working, or refrigerator interior light not working, you can enter your model number on RepairClinic.com to find the exact replacement part that fits your refrigerator.
01 - GE Refrigerator Light Assembly
The light assembly might be defective. Some manufacturers don’t sell the light assembly components separately, and instead require you to purchase the light assembly.
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While it's not a likely cause, a defective dispenser control board could be responsible for a dispenser light not working. You can inspect the board for signs of burning or a shorted-out component. You can also use a multimeter to determine if the board is sending voltage to the dispenser light's plug-in connecter. If no voltage is present, you'll know the board is defective and will need to be replaced.
To determine if the door switch is defective, use a multimeter to test it for continuity. If the door switch does not have continuity when activated, replace it.
To determine if the light socket is defective, use a multimeter to determine if the socket is getting power. If the socket is getting power, but the light bulb won’t work, this indicates that the light socket is defective. If the light socket is defective, replace it.
First, ensure that the light board is receiving the proper amount of voltage. If the light board is receiving sufficient voltage, but the refrigerator light will not work, replace the light board.