![]() Once the mold reaches the proper temperature the ice maker starts a harvest cycle by ejecting the ice cubes and refilling with water. Inside the control module of the ice maker is a thermostat which monitors the temperature of the ice mold (ice tray). If the ice maker is not working the icemaker mold thermostat might be defective. If the refrigerator ice maker is not working the water filter might be clogged. If the ice level control board fails, the ice maker will stop making ice. As ice is used up and the level of ice drops below the beam, the ice maker starts up again. As the level of ice reaches the top, the beam is interrupted and the ice maker shuts off. This refrigerator is equipped with an infrared light beam to detect the level of ice in the ice bucket. If the ice maker is not working the ice level control board might be defective. If it doesn’t have continuity it should be replaced. The switch can be checked for continuity with an Ohm meter. If the door switch fails the dispenser will not turn on. When the freezer door is opened the freezer door switch does two things, it turns on the light in the freezer and turns off the ice maker and dispenser. If the refrigerator ice maker is not working, the door switch might be defective. The water inlet valve which supplies water to the ice maker is designed to work with a minimum of 20 psi of water pressure. If the ice maker is not working the water pressure in the house might be too low. Usually there are test points in the module that a service person can use to determine if there is a problem with it or one of the related ice maker components. The motor or contacts of the module can fail. It also has contacts in it for the mold heater and water inlet valve. The module has a motor that cycles the ice ejector arms around to push the ice cubes out when the ice maker thermostat closes. If the ice maker is not working the icemaker module at the front might be defective. If other, simpler parts like the water inlet valve or shut off arm have been ruled out, and the only thing left is the ice maker itself, replace it as a unit. Also, ice makers have a relatively short lifespan and so it might not be worth fixing. There are several components in the control module of the ice maker that can fail and most are not sold separately. The freezer temp should be between 0-5 degrees for the ice maker to cycle properly. If the ice maker is not working it could be that the ice maker assembly itself is defective. The coil can show good for continuity and still not let the water thru. The water inlet valve is an electro-mechanical valve. ![]() If the refrigerator ice maker is not working the water inlet valve might be defective. We need the model number of the refrigerator rather than the icemaker
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