This DIY repair guide gives step-by-step instructions for replacing a temperature control board in a refrigerator. The temperature control board, also called the main control board or the PCB board, is next to the compressor, behind the panel on the back of the refrigerator. The temperature control board monitors the temperature sensors and starts the compressor and fans to cool the refrigerator. It also controls the defrost cycle. A failed temperature control board misreads the temperature sensors, causing inconsistent refrigerator temperature—typically too cold.
Because other problems can cause the same symptom, a reliable diagnosis requires the expertise of a local refrigerator repair expert. If the temperature control board is faulty, replace it with the manufacturer-approved replacement part for your model.
Use this procedure to replace the temperature control board in Kenmore, GE, Maytag, Amana, Frigidaire, Electrolux, Whirlpool and Haier refrigerators.
