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Roper Refrigerator Ice Maker Not Working

RT21LMXKQ00

The part(s) or condition(s) listed below for the symptom Refrigerator ice maker not working are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Refrigerator ice maker not working

Cause 1Freezer 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.

Cause 2Water 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.

Part Testing
Parts
Water Inlet Valve for your RoperRefrigerator
Water Inlet Valve - Part # 1199652 Mfg Part # WP2315576

Refrigerator icemaker water inlet valve. If the icemaker is making small or hollow cubes then the water inlet valve may be restricted and require replacement.

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Cause 3Ice 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.

Parts
Ice Maker Assembly for your RoperRefrigerator
Ice Maker Assembly - Part # 1857 Mfg Part # 4317943

Refrigerator icemaker. This item does not include a new shut off arm. To remove the existing shut off arm from the old icemaker, lift it to the up position, unhook it from the fill cup bearing, and pull it out of the module.

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Cause 4Icemaker Module

The icemaker module is equipped with a motor that cycles the ice ejector arms or turns a tray to eject the cubes into the ice bucket. When the thermostat or sensor on the icemaker tray reaches about 15 degrees Fahrenheit, the motor cycles to release the ice cubes. At the end of the cycle, the icemaker module sends power to the water inlet valve to refill the tray with water. If the icemaker module is defective, the ice maker won’t make or dispense ice. First, depending on your model, make sure that the on/off switch is in the on position or the bail arm is in the down position. If the icemaker module has ejector blades, check to ensure that ice cubes are not stuck in the blades. There are usually test points in the module that a technician can use to further diagnose problems with the module.

Parts
Icemaker Module for your RoperRefrigerator
Icemaker Module - Part # 1469018 Mfg Part # W10190935

Refrigerator icemaker control module and motor assembly. Located under the white cover of icemaker and controls ice ejector bar, heater and water inlet valve for the icemaker. If the icemaker is not making ice or making too much ice the model may be defective.

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Cause 5Low 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.

Cause 6Door 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.

Part Testing
Parts
Door Switch for your RoperRefrigerator
Door Switch - Part # 3071 Mfg Part # WP1118894

Refrigerator door switch. This switch activates the refrigerator light when the door is open.

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Cause 7Water 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.

Parts
Water Filter for your RoperRefrigerator
Water Filter - Part # 1603265 Mfg Part # 4378411RB

Universal in-line water filter designed to improve the taste of drinking water and the clarity of ice cubes by reducing contaminants such as lead and chlorine. Push-in fittings can be used in both copper or plastic 1/4 inch water lines. Replace filter every 6 months for optimal performance.

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Cause 8Icemaker Mold Thermostat

The icemaker mold thermostat monitors the temperature of the ice mold (ice tray). Once the mold reaches the proper temperature, the icemaker ejects the ice cubes and refills the ice mold with water. If the mold thermostat is defective, the ice maker will stop making ice. To determine if the thermostat is defective, use a multimeter to test it for continuity. If the mold thermostat does not have continuity, replace it. (Note: If the ice maker is not cold enough, the mold thermostat contacts will open. If the thermostat contacts are open, the ice maker will not make ice. The ice maker temperature must generally be lower than 20 degrees Fahrenheit for the thermostat contacts to close.)

Parts
Icemaker Mold Thermostat for your RoperRefrigerator
Icemaker Mold Thermostat - Part # 2942 Mfg Part # WP627985

Thermostat for modular icemaker, with new clips

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