ErrorCodeDoctor
LG · Range (Electric)

LG Range (Electric) F33 error code

Difficulty: Hard · Cost: $80–$250 · Duration: 5m

The F33 error means your LG induction range detected a problem with the temperature sensor on the front induction burner. The temperature sensor monitors heat levels at the burner surface to regulate cooking power safely. When it develops a fault the front burner cannot operate correctly and the range stops the function. A circuit breaker reset clears it in some cases but if F33 keeps returning the temperature sensor will need to be inspected and replaced by a technician.

Common causes

  • Front induction burner temperature sensor has malfunctioned or failed
  • Wiring connection to the front burner temperature sensor is loose or damaged
  • Internal fault in the burner temperature sensor circuit

How to fix it

  1. 1

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

  2. 2

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

  3. 3

    If F33 persists after resetting the front induction burner temperature sensor needs inspection and replacement by a qualified technician

Related LG Range (Electric) error codes

1

HS

The cooktop surface temperature is above 150°F — too hot to touch

easy
2

H5

The cooktop surface temperature is above 150°F — too hot to touch

easy
3

PF

Power to the range was interrupted

easy
4

Sb

Sabbath mode is active — temperature control, timer, light, and alarm functions are disabled

easy

F33 error — frequently asked questions

What does the F33 error mean on a LG range (electric)?

The front induction burner temperature sensor detected a fault

What causes the F33 error?

The F33 error is usually caused by: Front induction burner temperature sensor has malfunctioned or failed; Wiring connection to the front burner temperature sensor is loose or damaged; Internal fault in the burner temperature sensor circuit.

Can I fix the F33 error myself?

This is rated a hard fix — it often requires tools, parts, or experience, and may be safer left to a professional technician.

How much does it cost to fix the F33 error?

Fixing the F33 error on a LG range (electric) typically costs $80–$250, depending on parts and whether you do it yourself or hire a technician.

Is it safe to keep using my range (electric) with the F33 error?

We'd recommend addressing the F33 error before continuing to use the range (electric), since hard-rated issues often involve a real fault rather than a minor glitch.