LG Refrigerator Error Code Defrost error

This error means the automatic defrost system has detected an abnormal condition and failed to operate correctly. The control board waits 80 minutes after the problem begins before triggering the error code. Common causes include a failed defrost heater, a blown thermal fuse, a short circuit in the wiring, or a connector that has come unplugged. Left unresolved, the evaporator coils will ice over and the refrigerator will lose its ability to cool.

Continuing to use the refrigerator with an active defrost error is not recommended. As frost accumulates on the evaporator coils, cooling performance will deteriorate and food may reach unsafe temperatures. The refrigerator should be addressed promptly, and perishable food should be monitored closely in the meantime.

Repair costs depend on which component has failed. A thermal fuse is typically inexpensive, with parts costs in the range of $5 to $20. A defrost heater assembly can range from $20 to $80 for parts. If a technician is needed, expect to add labor costs of $75 to $200 or more depending on your location and the complexity of the repair.

Some causes, such as a disconnected connector, can be resolved without replacing any parts if you are comfortable working inside the appliance after disconnecting power. Replacing a defrost heater or thermal fuse is a moderate DIY repair that requires basic electrical testing skills and a multimeter. If the wiring harness is shorted or the root cause is unclear, a qualified technician is the safer choice.

Resetting the refrigerator by disconnecting power may temporarily clear the error display, but the underlying fault in the defrost circuit will remain. The error will return after another 80 minutes once the control board detects the same problem again. A proper repair of the failed component is necessary to permanently clear the code.