If your KitchenAid refrigerator light is not working, start simple: the bulb is the most common cause, so swap in a fresh bulb before replacing anything else. If a new bulb does not fix the fridge light, test the light switch, door switch and light socket for continuity or voltage; those parts are highly likely to fail and are easy to check with a multimeter. Some models require replacing the whole light assembly rather than individual components, so if the socket, switches and bulb check out the light assembly itself may be defective. It is uncommon but possible for a dispenser control board or other electronics to be the problem; inspect the board for burned components or confirm it is supplying voltage to the light connector before ordering a control board. Enter your model number on RepairClinic.com to find the exact replacement part for your refrigerator—bulbs, sockets, switches and assemblies are listed by model so you get the right part for a fast repair.
01 - KitchenAid 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 - KitchenAid 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.