LG Microwave Error Code E-62

E-62 is a humidity sensor short error on LG microwaves. The control board has detected that both terminals of the humidity sensor are shorted together, producing a signal outside the normal operating range. This disables sensor-based cooking functions and requires inspection of the sensor, its wiring, and connectors before the microwave will operate normally again.

Using the microwave with an active E-62 error is not recommended. The humidity sensor short means sensor-driven auto-cook programs cannot accurately determine when food is done, which could result in undercooked or overcooked food. Manual timed cooking may still function in some cases, but it is best to resolve the fault before relying on the appliance.

Repair costs vary depending on the cause. A humidity sensor replacement part typically costs in the range of $15 to $50 depending on the model. If professional labor is involved, total repair costs including parts and service can range from $80 to $200 or more. If the control board is at fault, costs will be higher, and in some cases it may be more economical to replace an older microwave.

Some causes of E-62 are DIY-friendly, such as cleaning contamination off the sensor terminals or inspecting the wiring harness for visible damage. However, microwaves contain high-voltage capacitors that can retain a dangerous charge even when unplugged, so internal repairs should only be attempted by technicians who know how to safely discharge the capacitor. Replacing the humidity sensor itself is a moderate-difficulty repair once the capacitor is safely discharged.

A simple power reset by unplugging the unit and restoring power may temporarily clear the error code, but the code will return if the underlying short condition still exists. Resetting does not repair a faulty sensor, damaged wiring, or contaminated terminals. The root cause must be diagnosed and corrected for the error to stay cleared.