LG Refrigerator Error Code Error11

Error11 on an LG refrigerator indicates that the ice maker temperature sensor has been detected in an abnormal state, either a short circuit or an open circuit. The control board monitors the sensor through CON8 PIN 1 and PIN 2, and when the resistance falls outside the acceptable range, the error is triggered. This typically stops normal ice maker operation until the fault is resolved.

A power reset may temporarily clear the error code from the display, but if the underlying sensor fault still exists, Error11 will return. The error code indicates an active circuit fault that requires diagnosis and physical repair. Resetting without fixing the cause is not a permanent solution.

If only the ice maker thermistor needs replacement, parts typically cost between $10 and $40, and the repair is relatively straightforward. If wiring harness repair or connector replacement is needed, labor costs will vary by service provider. A main control board replacement, if required, can range from $100 to $300 or more for parts alone, making it the most expensive possible outcome for this error.

Begin by measuring the resistance at CON8 PIN 1 and PIN 2 to determine whether the sensor circuit shows a short (near 0 ohms) or an open (infinite resistance). If the resistance is abnormal, inspect the wiring harness and connector for damage or corrosion before replacing the ice maker thermistor. If the sensor and wiring test good, the main control board may need further evaluation.

The refrigerator's cooling and food preservation functions typically continue to operate even when Error11 is active, since the fault is specific to the ice maker sensor circuit. However, ice production will likely be suspended or unreliable. It is safe to continue using the refrigerator for food storage, but the ice maker should not be expected to function normally until the sensor issue is repaired.