If your refrigerator light not working, start with the parts most likely to fail: test the fridge light switch first, then the door switch and the light socket, since those three are the most common causes. Use a multimeter to check switch continuity and to confirm the socket is getting voltage before swapping parts. If those check out, try replacing the refrigerator light bulb next; a burned out bulb is an easy fix and should always be ruled out before replacing other components. If a new bulb and functioning switches and socket still don’t restore the interior light, the light assembly may be defective and sometimes sold only as a complete unit. It is possible but unlikely that a dispenser control board is at fault; inspect the board for burned components or use a meter to see if it’s sending voltage to the light connector. Enter your model number at RepairClinic.com to find the exact replacement light bulb, light switch, socket, light assembly, or control board that fits your refrigerator.
01 - Crosley 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.