LG Refrigerator Error Code Icemaking Sensor malfunction

This error means the refrigerator's control board has detected an open or short-circuited wire in the icemaker sensor circuit. The icemaker temperature sensor is responsible for monitoring conditions in the icemaker assembly to control the freeze and harvest cycle. When the circuit is broken or shorted, the board cannot receive valid temperature data and displays this fault. Ice production will typically stop until the issue is resolved.

This error is not a safety hazard to people or the refrigerator's food storage compartment. It is isolated to the icemaker circuit and will typically cause ice production to stop rather than creating any risk of overheating or electrical danger. Food stored in the main refrigerator and freezer sections should remain unaffected as long as the main cooling system is operating normally.

A power reset may temporarily clear the error code from the display, but if the underlying open or short circuit in the sensor wiring still exists, the fault will return once the control board runs its diagnostics again. A reset is useful for confirming whether the issue is intermittent or persistent, but it does not repair a damaged wire, corroded terminal, or failed sensor. The physical wiring and sensor must be inspected and repaired to permanently resolve the fault.

A knowledgeable DIYer can attempt the initial diagnostic steps, which involve checking that every sensor wire connector is fully seated and free of visible damage or corrosion. If reconnecting a loose connector clears the error, no further repair is needed. However, if the wire harness is damaged or the sensor itself has failed, replacing those components requires some comfort with appliance disassembly and use of a multimeter to test resistance.

If the fix is simply reseating a loose connector, there is no parts cost, though a service call fee may still apply if a technician is involved. Replacement of the icemaker temperature sensor typically costs between $20 and $75 for the part alone. If the wire harness needs replacement, parts can range from $30 to $100 or more depending on the specific model, with additional labor costs if a technician performs the work.