If your refrigerator light not working or the fridge interior light out, start with the simplest fix: replace the bulb. A burned-out bulb or a faulty light assembly are the most common causes, and swapping the bulb often fixes a refrigerator interior light not working without any tools. If the bulb does not bring the light back, move on to the light switch, door switch and light socket; these parts frequently fail and are easy to test for continuity with a multimeter or inspect for loose or burned contacts. A faulty dispenser control board can sometimes prevent a dispenser or interior lamp from powering up, but that is much less likely and should be checked only after you rule out the bulb, socket and switches. Enter your model number on RepairClinic.com to find the exact replacement bulb, light assembly, switch or socket for your fridge, and use our repair guides and videos for clear step by step instructions.
01 - Montgomery Wards 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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03 - Montgomery Wards 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.