LG Range Error Code -SE-

The -SE- error code indicates a shorted key error. It means the control board has detected that one key on the membrane keypad has been continuously activated for 10 minutes or more. The oven disables normal operation until the shorted or stuck key condition is resolved. This can stem from a physically stuck button, a harness connection fault, or a damaged keypad.

A power reset by unplugging the range or shutting off the circuit breaker for a few minutes may temporarily clear the -SE- code. However, if the underlying cause, such as a stuck key, faulty harness connection, or damaged membrane, is not corrected, the error will return within 10 minutes of resumed operation. A reset alone is not a repair.

Repair costs vary depending on the root cause. If only cleaning or reseating the harness is needed, there may be no parts cost involved. Replacing the membrane keypad assembly typically runs between $50 and $150 for the part, while a replacement PCB can range from $100 to $300 or more. Adding professional labor costs, total repair estimates generally fall between $100 and $400 depending on the components required.

In many cases, yes. Start by disconnecting power to the range for several minutes and then inspecting the control panel keypad for any stuck or debris-covered button. Also check that the membrane wire harness is fully connected to the PCB. If cleaning the keypad surface and reseating the harness resolves the issue, no parts or professional service are needed.

The -SE- error disables the control panel inputs as a protective measure, which means the range may not respond to commands normally. You should not attempt to operate the oven while this error is active, as the control logic is compromised. Disconnect power to the appliance until the issue is diagnosed and corrected.