If your U-Line refrigerator light not working, start with the parts most likely to fail and work down the list. The light assembly itself is often the culprit, especially on models where the manufacturer only sells the whole assembly instead of individual components. Next check the bulb — it may simply be burned out, so replace it before ordering other parts. A defective dispenser control board is less likely but worth a quick visual inspection for burned components and a voltage check if the dispenser light is involved. If the bulb and assembly look fine, test the light switch and the door switch with a multimeter for continuity, since these switches commonly fail. Finally, if the socket is getting power but the bulb still will not light, the light socket will need replacing. Whether you call it fridge light not working, refrigerator light out, or refrigerator interior light not working, you can enter your model number on RepairClinic.com to find the exact replacement part and step-by-step guidance for your specific refrigerator.
01 - U-Line 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.