LG Refrigerator Error Code Icemaker Sensor Malfunction

This error means the control board has detected an open or short circuit in the icemaking sensor circuit. The sensor monitors temperature to manage the ice production cycle, and when the circuit reads outside its expected range, ice making is halted. The fault is displayed on the ice maker water supply control panel. The issue may be in the sensor wiring, connectors, or the sensor itself.

Yes, this error does not indicate a hazard to food safety for the rest of the refrigerator. The main fresh food and freezer compartments will continue to operate normally. However, the ice maker will not produce ice while the fault is active, so you should address the issue if you rely on the ice maker.

Repair costs vary depending on what component has failed. If only a connector needs reseating or cleaning, there may be no parts cost at all. Replacing the icemaking sensor itself is generally a lower-cost repair, typically in the range of $20 to $80 for the part, while a control board replacement can range from $80 to $200 or more. Adding a professional technician's labor will increase the total cost.

Start by checking that all wiring connectors at the icemaking sensor are fully seated and free of corrosion or damage. If the connections look good, use a multimeter to test the resistance of the sensor to determine if it has an open or short circuit internally. A damaged harness or failed sensor will need to be replaced to clear the fault. If the sensor and wiring both test correctly, the ice maker control board may need evaluation.

A reset may temporarily clear the error code from the display, but if the underlying sensor or wiring fault is still present, the code will return once the control board runs its diagnostics again. A lasting fix requires identifying and repairing the open or short circuit in the sensor wiring or replacing the failed sensor.