LG Refrigerator Error Code E SS

E SS on an LG refrigerator indicates a short circuit or disconnection in the ice maker sensor circuit, which includes the icing sensor and the ice maker sensor. These are thermistor-based sensors that monitor temperature inside the ice maker assembly. The control board has detected a resistance value outside the acceptable range, signaling either a wiring fault or a failed sensor component. Ice maker operation may be suspended until the fault is corrected.

A reset may temporarily clear the E SS code, but it will return if the underlying sensor fault is still present. To permanently clear the code, the actual cause, whether a failed thermistor, a bad connector, or damaged wiring, must be diagnosed and repaired. Resetting without fixing the root cause does not restore normal ice maker operation.

If only a connector needs reseating or cleaning, there may be no parts cost at all. Replacing an ice maker thermistor sensor typically costs between $15 and $60 for the part, depending on the specific model. If a wiring harness replacement is needed, parts and labor together can range from $80 to $200 or more. A main control board replacement, if required, generally falls in the $150 to $350 range for parts alone.

Start by locating the ice maker sensor connectors and checking that each one is firmly seated with no bent or corroded pins. If the connectors look good, use a multimeter to test the resistance across each thermistor sensor to determine if the sensor itself has failed. Replace any sensor that reads open or shorted, and repair or replace damaged wiring in the harness. If sensors and wiring both test normal, the main control board may need evaluation.

The refrigerator's cooling function for food storage is generally not affected by the E SS code, which is specific to the ice maker sensor circuit. However, the ice maker may stop producing ice or operate abnormally while the fault is present. It is advisable to address the issue promptly to avoid extended downtime of the ice maker and to prevent any secondary issues from unmonitored conditions in the ice maker compartment.