Whirlpool Refrigerator Ice Maker Optic Sensor Blinking 2... | appliancefaults.com

Technical Background:

The main control unit (MCU) monitors the ice maker's operation, including the optic sensors. The optic sensors detect the ice level in the ice maker bin. A 2-blink code typically indicates an issue with the sensor signal or voltage.

Symptoms:

The homeowner observes that the ice maker is not producing ice and the optic sensor on the left wall of the refrigerator is blinking twice.

Possible Causes:

Blocked ice maker optics.
Faulty optic sensor.
Wiring harness issue between the optic sensor and the main control board.
Defective main control board.
Ice maker assembly failure.
Low voltage to ice maker.

Solution:

1

Disconnect power to the refrigerator at the breaker panel.
2

Locate the ice maker optic sensors inside the refrigerator. They are usually located on the left interior wall.
3

Visually inspect the optic sensors for obstructions like ice buildup or debris. Clear any obstructions.
4

Check the wiring harness connecting the optic sensors to the main control board. Look for loose connections or damaged wires. Reconnect or repair as needed.
5

Using a multimeter, test the voltage at the optic sensor connector. You should see approximately 5V DC. If the voltage is incorrect, the main control board may be faulty.
6

If the wiring and voltage are good, replace the optic sensor. You can usually remove the sensor by unscrewing it with a 1/4-inch nut driver.
7

Restore power to the refrigerator at the breaker panel and observe the ice maker operation.

Safety Warning:

Lock Out/Tag Out (LOTO) the refrigerator's breaker before working on it. High voltage components are present. Be careful.

Prevention:

Periodically check the ice maker for ice buildup and clear any obstructions to the optic sensors. Replace the water filter every 6 months.

Expert Tip:

To force a harvest cycle, press and hold the ice maker test button for 3 seconds. This can help determine if the issue is a sensor problem or a mechanical issue with the ice maker itself.

Follow-up Questions:

Frequently Asked Questions

•How do I test the optic sensor with a multimeter?

Set your multimeter to DC voltage. Disconnect the sensor from the harness. With the refrigerator powered on, place the multimeter probes on the terminals of the wire harness that connects to the sensor. You should read approximately 5V DC. If the voltage is absent or significantly low, the issue is likely with the main control board.

•Where is the main control board located in the WRF560SEHZ?

The main control board is typically located at the rear of the refrigerator, behind an access panel. You will need to unplug the refrigerator and remove the panel using a 5/16-inch socket to access it.

•What is the part number for the optic sensor for this model?

The part number for the ice maker optic sensor for the Whirlpool WRF560SEHZ is typically W10876607, but it is always best to verify with your appliance parts supplier or by checking the parts diagram for your specific unit's serial number.

Whirlpool Refrigerator Ice Maker Optic Sensor Blinking 2 Times: Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I test the optic sensor with a multimeter?

•Where is the main control board located in the WRF560SEHZ?

•What is the part number for the optic sensor for this model?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: