GE Monogram Refrigerator Error Code CI: Ice Maker... | appliancefaults.com

Technical Background:

The CI error code indicates a communication or operational fault within the ice maker system. The main control unit (MCU) monitors the ice maker's thermistor, water valve, and motor. It sends signals to initiate ice production and harvest cycles. Voltage paths typically involve 120V AC for the water valve and lower voltage DC for the thermistor and module communication.

Symptoms:

The homeowner observes that the ice maker is not producing ice, and a CI error code is displayed on the refrigerator's control panel. The ice maker may be completely non-functional, or it may produce only small amounts of ice.

Possible Causes:

Faulty ice maker module.
Defective ice maker water valve.
Wiring harness issue between the main control board and the ice maker.
Ice maker thermistor failure.
Software glitch in the main control board.

Solution:

1

Disconnect power to the refrigerator at the breaker panel. Verify 0V AC at the refrigerator receptacle.
2

Locate the ice maker inside the freezer compartment. Typically held in place by screws or clips.
3

Inspect the wiring harness and connections to the ice maker for any signs of damage or loose connections. Use a flashlight for better visibility.
4

Test the ice maker water valve using a multimeter for continuity. It should read approximately 500-800 ohms. If open, replace the valve.
5

Check the ice maker thermistor resistance. At 32 degrees Fahrenheit, it should read around 10k ohms. Use a multimeter.
6

If the wiring, water valve, and thermistor test okay, replace the ice maker module.
7

After replacing the faulty component, restore power to the refrigerator and monitor the ice maker for proper operation. Allow 24 hours for ice production.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any repairs. Lockout/Tagout (LOTO) procedures should be followed. High voltage is present in some components; exercise caution.

Prevention:

Regularly clean the ice maker compartment and check for ice buildup. Replace the water filter every 6 months to ensure proper water flow and prevent mineral deposits from clogging the ice maker valve.

Expert Tip:

Many GE Monogram refrigerators have a service mode. Consult the technical service manual to access diagnostic tests for the ice maker. You can often force a harvest cycle to test its functionality.

Frequently Asked Questions

•What is the correct resistance reading for the ice maker thermistor at room temperature (70 degrees Fahrenheit)?

At 70 degrees Fahrenheit, the ice maker thermistor should read approximately 2-3k ohms. Refer to the service manual for exact values.

•How do I force a harvest cycle in the GE Monogram refrigerator service mode?

Access the service mode (refer to the service manual for your specific model). Navigate to the ice maker test function. Select the 'Force Harvest' option. The ice maker should initiate a harvest cycle.

•Where is the ice maker water valve located?

The ice maker water valve is typically located at the back of the refrigerator, near the bottom. You may need to remove the lower access panel to gain access.

GE Monogram Refrigerator Error Code CI: Ice Maker Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the correct resistance reading for the ice maker thermistor at room temperature (70 degrees Fahrenheit)?

•How do I force a harvest cycle in the GE Monogram refrigerator service mode?

•Where is the ice maker water valve located?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: