Thermador Refrigerator Faulty Ice Makers
Thermador Refrigerator Main Control Board
The refrigerator’s main control board controls the voltage being sent to the ice maker. If the control board is defective, the ice maker may not work at all. You can inspect the board for signs of damage or a shorted component. You can also use a multimeter to determine if voltage is reaching the ice maker after reviewing the refrigerator’s wiring diagram.
Freezer Temperature is Above 10 Degrees F (-12C)
If the freezer temperature is above 10 degrees Fahrenheit (-12C), the ice maker will not produce ice cubes efficiently. The freezer temperature should be set between 0 and 5 degrees Fahrenheit (-18 to -15C) for the ice maker to work properly. If the freezer temperature is too high, ensure that the condenser coils are clear of debris and the condenser fan is working properly. In addition, check to see if frost has accumulated on the evaporator coils. If the evaporator coils are frosted over, part of the defrost system has likely failed.
Thermador Refrigerator Water Inlet Valve
The water inlet valve is an electrically-controlled valve that opens to supply water to the dispenser and ice maker. If the water inlet valve is defective, or if it has insufficient pressure, it won’t allow water to flow through. As a result, the ice maker won’t make ice. The valve requires at least 20 psi to function properly. Make sure that the water pressure to the valve is at least 20 psi. If the water pressure is sufficient, use a multimeter to check for power to the water inlet valve. If the water inlet valve has sufficient pressure and is getting power, but the ice maker won’t fill with water to make ice, replace the water inlet valve.
Thermador Refrigerator Ice Maker Assembly
One component of the ice maker assembly might be defective. Since many of the ice maker components are not sold separately, you may need to purchase and replace the entire ice maker assembly. Before replacing the ice maker assembly, check the water inlet valve, water line, and fan. If none of these parts are at fault, and the freezer temperature is at least 15 degrees Fahrenheit, replace the ice maker assembly.
Thermador Refrigerator Fill Hose
If there is low water pressure coming into the refrigerator, or the water inlet valve is defective, the ice maker’s fill tube can become clogged with ice and prevent water from entering the ice maker tray. You can use a hair dryer to thaw out the frozen fill tube, but you should confirm the home has sufficient water pressure and the water inlet valve is functioning properly. If the fill tube appears damaged, you should replace it with a new fill tube.
Low Water Pressure from House Supply
The home may have insufficient water pressure. The water inlet valve supplies water to the ice and water dispenser. The water inlet valve requires a minimum of 20 psi to function properly. Check the water flow and test the pressure to determine if it is at least 20 psi.
Confirm icemaker is On
Make sure the icemaker is turned on and the arm or paddle is able to move freely. On in-door ice-dispensing models, with the door open make sure the indicator light stays on steadily when the ice dispenser flap and door switch are pressed.
Frozen fill tube on ice maker
If there is low water pressure coming into the refrigerator, or the water inlet valve is defective, the ice maker’s fill tube can become clogged with ice and prevent water from entering the ice maker tray. You can use a hair dryer to thaw out the frozen fill tube, but you should confirm the home has sufficient water pressure and the water inlet valve is functioning properly.
Thermador Refrigerator Door Switch
The door switch turns off the ice and water dispenser when the refrigerator door is open. If the door switch fails, the dispenser will not turn on. 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.
Thermador Refrigerator Ice Level Control Board
On some refrigerator models, an ice level control board and sensor will be used to determine how much ice is in the ice bucket. When the ice bucket fills to capacity, the ice level control board will automatically shut off the power to the ice maker. If the ice level control board is malfunctioning, it may not allow the ice maker to turn on at all. If the refrigerator has an in-door ice dispenser, open the door and check to see if the indicator light stays on steadily when the ice dispenser paddle and door switch are pressed. If not, the ice level control board is likely defective.
Thermador Refrigerator Control Board
The refrigerator’s control board controls the voltage being sent to the ice maker. If the control board is defective, the ice maker may not work at all. You can inspect the board for signs of damage or a shorted component. You can also use a multimeter to determine if voltage is reaching the ice maker after reviewing the refrigerator’s wiring diagram.
Thermador Refrigerator Icemaker Fill Tube Heater
The fill tube heater keeps the fill tube warm, to help prevent ice buildup, and keep water flowing to the icemaker.
Thermador Refrigerator Water Filter
A clogged water filter can restrict the flow of water to the dispenser and prevent the ice maker from working properly. The water filter should be replaced about every six months to maintain proper water flow and ensure water quality.