LG Oven / Range · Code F1 / F2 / F4

LG Oven / Range F1 code: Oven temperature sensor error

The oven temperature sensor (thermistor) is reading out of range, so the oven cannot control its temperature. F1 and F2 refer to the upper or only oven and F4 to the lower oven on double-oven models.

Most common causes

  1. Failed oven temperature sensor
  2. Loose or damaged sensor wiring
  3. Control board fault

What you can safely check yourself

  1. Press Clear/Off and try the function again
  2. Turn the range's circuit breaker off for 30 seconds, then back on

Unplug the appliance before moving or cleaning anything. Do not open panels, touch gas connections or bypass safety switches.

Checked against: lg.com. Meanings can vary by model; check your owner’s manual.

Quick answers

What does F1 mean on a LG Oven / Range?

The oven temperature sensor (thermistor) is reading out of range, so the oven cannot control its temperature. F1 and F2 refer to the upper or only oven and F4 to the lower oven on double-oven models.

Can I clear the F1 code myself?

Try these first: Press Clear/Off and try the function again Turn the range's circuit breaker off for 30 seconds, then back on Call a technician if the code returns; the sensor needs to be tested and replaced.

How much does it cost to fix a F1 code?

It depends on the cause. At FixPro the diagnostic visit is $79.00 and is credited in full to the repair; you get a flat-rate quote before any work starts.

Other LG Oven / Range codes

F9 · Oven not heating properlyF3 · Touch pad key errorF10 · Door lock failureF11 · Communication errorPF · Power interruption

Still showing the code?

A FixPro technician will find the cause and give you a flat price. $79.00 diagnostic, credited toward the repair.

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