LG Refrigerator Error Code E

The E error code on an LG refrigerator indicates a failure in the refrigerator compartment temperature sensor, located in the refrigerator control box. The fault is caused by either a short circuit or an open circuit condition in the sensor or its wiring. When this code is active, the refrigerator enters a failsafe mode where the compressor and fan cycle 15 minutes on and 15 minutes off, while the defrost heater continues to operate normally. A resistance check of the sensor is the recommended first diagnostic step.

The refrigerator will continue to run in a failsafe mode, cycling the compressor and fan on 15-minute intervals, but it cannot regulate temperature accurately. Food safety could be compromised if the compartment temperature rises too high, especially in warmer ambient conditions. It is best to check compartment temperatures with a separate thermometer and address the repair promptly rather than relying on the failsafe mode for extended periods.

A power reset may temporarily clear the E code, but it will return if the underlying sensor fault is still present. Unplugging the refrigerator for a few minutes and restoring power is worth trying, as a momentary wiring connection issue could resolve on its own. However, if the thermistor has failed or the wiring is physically damaged, the code will reappear and the faulty component must be repaired or replaced to permanently clear the error.

A knowledgeable DIYer can diagnose and fix this error code in many cases. Start by inspecting the sensor wiring harness for visible damage and checking that the connector at the control box is fully seated. If you have a multimeter, you can test the sensor resistance directly. Replacing the refrigerator thermistor is generally a straightforward repair, but if the wiring harness or control board is at fault, the repair becomes more complex and may warrant professional service.

Repair costs vary depending on the root cause. If only the thermistor sensor needs replacement, parts typically cost in the range of $15 to $50, and a professional labor charge would add $100 to $200 depending on your area. If the wiring harness or control board is at fault, total repair costs could range from $150 to $400 or more. Diagnosing the fault yourself before calling a technician can help you understand the scope of the repair.