If your Haier refrigerator light not working, start with the parts most likely to fail: test the light switch first, then the door switch and the light socket, since those three are the most common causes when the refrigerator interior light is out. If the switches or socket show no continuity or no voltage, replace the failed part. Next try the easiest fix: swap in a fresh bulb before replacing anything else. The light assembly itself can fail, and some models require you to replace the whole assembly rather than individual components. A defective dispenser control board is possible but much less likely; check the board for burnt components and use a multimeter to see whether it’s sending voltage to the light connector before buying a new board. You can find the exact replacement light bulb, light socket, switch, assembly, or dispenser control board for your model on RepairClinic.com by entering your model number to see parts that fit your refrigerator.
01 - Haier 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.