Whirlpool WRF535SWHZ Refrigerator Ice Maker Full of... | appliancefaults.com

Technical Background:

The refrigerator's main control unit (MCU) controls the ice maker operation. The MCU signals the water inlet valve to open, filling the ice maker tray with water. The freezer temperature is crucial for freezing the water into ice. A thermistor in the freezer reports the temperature to the MCU. The MCU then controls the ice maker heater during harvest cycle (ice ejection). The MCU sends 120V AC to the water inlet valve.

Symptoms:

The homeowner observes the ice maker is filling with water normally, but the water is not freezing into ice cubes. The ice maker bin may contain a pool of unfrozen water.

Possible Causes:

Faulty ice maker module
Defective water inlet valve
Low freezer temperature
Clogged or frozen fill tube
Insufficient water pressure
Damaged wiring harness

Solution:

1

Disconnect power to the refrigerator at the breaker panel.
2

Locate the ice maker in the freezer compartment. Remove the ice maker cover (typically secured with screws or clips; use a 1/4-inch nut driver).
3

Inspect the fill tube for ice blockage. If blocked, carefully thaw with a hair dryer (low setting) or warm water. Do not use sharp objects.
4

Check the water inlet valve (usually located behind the refrigerator). Disconnect the water line and check for proper water pressure (minimum 20 PSI).
5

Using a multimeter, test the water inlet valve solenoid for continuity. A reading of OL (open loop) indicates a faulty valve. Also check for 120V AC when the ice maker is supposed to fill.
6

If the valve tests good and the voltage is present, suspect the ice maker module. Replace the ice maker module.
7

Restore power to the refrigerator at the breaker panel and monitor the ice maker for proper operation.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any repairs. Lock Out/Tag Out (LOTO) procedures should be followed to prevent accidental energization. Some components carry 120V AC; use caution when testing live circuits.

Prevention:

Replace the refrigerator's water filter every 6 months to prevent sediment buildup in the water lines and inlet valve. Periodically check the freezer temperature to ensure it is within the optimal range (0-10 degrees Fahrenheit).

Expert Tip:

You can force a harvest cycle by pressing the test button underneath the ice maker. Use a flat blade screwdriver to press and hold the button for a few seconds until you hear the ice maker cycle. This can help diagnose if the motor and ejector are functioning.

Frequently Asked Questions

•How do I test the water inlet valve?

Disconnect power to the refrigerator. Locate the water inlet valve. Disconnect the wires and use a multimeter to check for continuity across the terminals. If you get an open reading (OL), the valve is likely faulty. You can also apply 120V AC to the terminals (use caution!) to see if the valve opens.

•What is the correct freezer temperature for ice maker operation?

The freezer temperature should be between 0 and 10 degrees Fahrenheit for optimal ice maker performance. Use a thermometer to verify the temperature. Adjust the freezer control if necessary.

•Where is the ice maker module located?

The ice maker module is located inside the ice maker housing in the freezer compartment. It's the part that contains the motor, gears, and electronic controls for the ice maker.

Whirlpool WRF535SWHZ Refrigerator Ice Maker Full of Water, Not Freezing: Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I test the water inlet valve?

•What is the correct freezer temperature for ice maker operation?

•Where is the ice maker module located?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: