Whirlpool Refrigerator WRF560SEHZ: Ice Maker Optic... | appliancefaults.com

Technical Background:

The optic sensors (emitter and receiver) detect the ice level in the ice bin. When the ice bin is full, the sensors signal the main control board to stop ice production. The main control board uses a programmed logic to manage ice production cycles based on the sensor inputs and the user settings. The voltage path starts at the main control board, runs to the emitter and then to the receiver back to the main control board to complete the circuit. A blinking code indicates a disrupted signal between the two sensors.

Symptoms:

The ice maker is not producing ice, and the optic sensor is blinking two times.

Possible Causes:

Blocked optic sensor path.
Defective optic sensor (emitter or receiver).
Wiring harness issue between the optic sensor and the main control board.
Faulty ice maker module.
Main control board failure.

Solution:

1

Unplug the refrigerator from the outlet or turn off the breaker. This is essential for safety.
2

Locate the ice maker optic sensors (emitter and receiver) inside the refrigerator.
3

Visually inspect the optic sensor path. Clear any obstructions like ice buildup or food particles.
4

Use a multimeter to check the voltage at the optic sensor connector. Consult the wiring diagram for the correct voltage readings (typically 5V DC).
5

Disconnect the optic sensor and test the resistance of the sensor using a multimeter. Compare to the manufacturer's specifications. A reading of infinite resistance or very low resistance indicates a faulty sensor.
6

If the sensor tests good, check the wiring harness for continuity and shorts using a multimeter. Repair or replace the wiring as needed.
7

If the wiring and sensor are good, replace the ice maker module. If problem persists, consider replacing the main control board, though this is less common.

Safety Warning:

Disconnect power to the appliance before performing any repairs. Lock Out/Tag Out (LOTO) procedures must be followed. High voltage components are present.

Prevention:

Regularly clean the ice maker area, including the optic sensors, to prevent ice buildup and obstructions. Replace the water filter every 6 months or as recommended by the manufacturer.

Expert Tip:

Some Whirlpool refrigerators have a service mode that allows you to manually test the ice maker components, including the optic sensors. Check the technical service manual for the model WRF560SEHZ to access this mode and perform diagnostic tests. Typically you would hold down the freezer temperature DOWN button and the ice maker ON/OFF button simultaneously for approximately 5-10 seconds.

Frequently Asked Questions

•Where can I find the wiring diagram for the ice maker optic sensor?

The wiring diagram is typically located on a folded sheet attached to the back of the refrigerator or inside the control panel. You can also find it online by searching for the model number WRF560SEHZ service manual.

•What is the typical resistance reading for a functioning ice maker optic sensor?

The resistance reading varies depending on the sensor type. Refer to the service manual or technical specifications sheet for the specific resistance range of the optic sensor in your WRF560SEHZ refrigerator. A healthy optic sensor typically reads between 1-5 kOhms when the beam is blocked.

•How do I know if the main control board is faulty?

Diagnosing a main control board requires advanced troubleshooting skills. After verifying the optic sensors and wiring are functional, if the issue persists, it suggests a control board fault. Look for visual signs of damage like burnt components on the board. If the voltage to the sensor is not correct from the main board, and you verified the wiring is good and the power supply to the main board is good, then replace the main board. Replacing the main board should be a last resort.

Whirlpool Refrigerator WRF560SEHZ: Ice Maker Optic Sensor Blinking 2 Times Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Where can I find the wiring diagram for the ice maker optic sensor?

•What is the typical resistance reading for a functioning ice maker optic sensor?

•How do I know if the main control board is faulty?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: