LG Refrigerator Error Code Er IT — Ice Maker Temperature Sensor Error
What this means
The Er IT error code indicates the temperature sensor inside or near the ice maker is malfunctioning. This sensor monitors the ice tray temperature to determine when ice is fully frozen and ready to be harvested. A faulty sensor can prevent ice production or cause continuous cycling.
Alternate codes: IT
Step-by-step fix
4 stepsReset the ice maker
Press and hold the ice maker test/reset button for 3–5 seconds. Wait for the test cycle to complete. If the error clears, it may have been a temporary glitch.
Access the ice maker temperature sensor
Remove the ice bucket and the ice maker assembly (usually held by 2–3 screws). The temperature sensor is typically a small thermistor clipped to the ice tray or mounted on the ice maker body.
Test the sensor
Disconnect the sensor and test with a multimeter. At freezer temperature (0°F), it should read approximately 16,000 ohms. An open or shorted reading means the sensor has failed.
Replace the sensor or ice maker assembly
If the sensor is a separate component, replace just the sensor. On many LG models, the sensor is integrated into the ice maker assembly, requiring full assembly replacement.
When to call a professional
If the ice maker assembly replacement does not clear the error, the control board's ice maker circuit may need diagnosis by a technician.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
Learn more about our sourcesParts you may need
Ice Maker Assembly
Part #AEQ73110212 · $80–$150
If sensor is integrated and ice maker needs replacement
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