If your refrigerator light not working, start simple and work down the likely parts. The most common fixes include a bad light assembly and a burned-out bulb, so swap the bulb first even though the assembly is listed as the top candidate. If a new bulb does not restore the fridge light, check the light switch, door switch and the light socket next, and use a multimeter to test switches for continuity and to verify the socket has power. Less commonly the dispenser control board can be at fault; inspect the board for burned components and test for voltage at the light’s plug-in connector before replacing it. These steps cover the usual causes when a fridge light not working or the refrigerator interior light not working, and they keep you from buying unneeded parts. When you know which part has failed, enter your model number on RepairClinic.com to find the exact replacement light assembly, bulb, switch or control board that fits your refrigerator.
01 - Arctic Air 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.
Enter model number to search for the required part specific to your product
03 - Arctic Air Refrigerator Dispenser Control Board
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.