LG · Range (Electric)

LG Range (Electric) F42 error code

Difficulty: Hard · Cost: $100–$350 · Duration: 5m

The F42 error means your LG range detected an abnormal voltage condition in the electrical supply. This can be caused by an issue with the home's electrical supply, a power surge, or an internal component fault. A circuit breaker reset clears it in some cases. If F42 keeps returning a licensed electrician should inspect the home's electrical supply before a technician inspects the range's internal components.

Common causes

Abnormal voltage detected in the range's electrical circuit
Power surge or unstable home electrical supply
Internal voltage regulating component has malfunctioned
Low voltage supply from the home's electrical panel

How to fix it

1

Turn off the circuit breaker for the range and wait 30 seconds
2

Turn the circuit breaker back on and check if the error has cleared
3

Make sure the range is connected to a properly grounded dedicated circuit
4

If F42 persists after resetting a licensed electrician should check the home's electrical supply
5

If the electrical supply is correct contact a qualified technician to inspect the range's internal voltage components