LG Range F2 Error: Oven sensor shorted
LG range error — here’s what you need to know. The F2 error code on your LG range indicates oven temperature sensor short circuit. This is a High severity issue. What Does F2 Mean on an LG Range? The F2 error code means the oven temperature sensor is reporting a shorted condition — its resistance […]
~60%
DIY Fixable
From 5
Typical Repair Cost
30–60 min
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. A shorted sensor means the control board cannot safely regulate oven temperature. Do not operate the oven until the fault is corrected.
Can I reset the code?
Yes. Power cycling will temporarily clear the display, but F2 will return as soon as the range attempts to read the sensor again.
When to stop immediately?
Stop if you notice: Stop if you find burnt or melted wiring anywhere in the oven cavity., Stop if the sensor resistance reads near 0 ohms — a dead short — and call a technician..
Symptoms You May Notice
Oven shuts off immediately after being turned on
The control board detects an out-of-range (too-low) resistance and cuts power to the heating elements within seconds of startup.
F2 code on the display with beeping
The range displays F2 and beeps to alert the user; the code typically reappears seconds after clearing.
All oven modes are unavailable
Bake, broil, convection, and self-clean functions are all locked out while the fault is active.
Inconsistent temperature performance
The range runs too hot, too cold, or cycles erratically because the control board receives inaccurate temperature readings from the faulty sensor.
Possible Causes
Damaged oven temperature sensor
Physical damage to the sensor probe — from a dropped pan, moisture, or heavy self-clean cycles — causes internal shorting and abnormally low resistance.
DIY PossiblePinched or shorted sensor wiring
A wire in the sensor harness has been pinched against the oven cabinet or an internal metal edge, creating a short to ground.
DIY PossibleFaulty electronic oven control board
The EOC board's sensor input circuit has failed, generating a false short reading even when the sensor and wiring are electrically sound.
Requires ProfessionalSafe Checks You Can Do
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1
Visually inspect the sensor probe
With the range unplugged, look into the oven and inspect the sensor probe (the small metal rod near the top-rear wall). Look for cracks, burns, or physical deformation.
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2
Check sensor resistance
Disconnect the sensor harness and measure resistance across the sensor terminals. A healthy sensor reads ~1,080–1,090 ohms at room temperature. A reading below 500 ohms indicates a shorted sensor.
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3
Inspect the wiring harness for pinching
Trace the sensor wire from the probe through the back wall of the oven cabinet and check for any point where insulation has been cut or compressed against a metal edge.
When to Call a Professional
Contact a qualified technician if:
- F2 persists after replacing the oven temperature sensor with a confirmed-good part.
- Wiring damage is found inside the oven cavity conduit.
- EOC board replacement is needed to resolve the fault.
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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