LG Range F6 Error: Temperature probe short circuit
LG range error — here’s what you need to know. The F6 error code on your LG range indicates oven temperature probe short — the meat probe or oven sensor thermistor has shorted. This is a Medium severity issue. What Does F6 Mean on an LG Range? F6 indicates that the control board has detected […]
~70%
DIY Fixable
From $30 (replacement probe) — $380 (control board)
Typical Repair Cost
30 minutes – 2 hours
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. The oven can be used normally for baking and broiling without the probe plugged in. Do not use the meat probe functionality until the shorted probe has been replaced and F6 no longer appears.
Can I reset the code?
Yes. Removing the faulty probe and performing a power reset clears F6. If the code returns only when the probe is inserted, simply replacing the probe resolves the fault permanently.
When to stop immediately?
Stop if you notice: Stop using the meat probe entirely until it is replaced — continued use with a shorted probe can damage the control board., Stop all oven use if F6 appears without any probe plugged in — the board's probe input circuit may be shorted and poses a further failure risk..
Symptoms You May Notice
Oven stops heating mid-cook with probe inserted
The oven element de-energizes and cooking halts while food is still in the oven because the shorted probe sends an invalid signal to the control board.
F6 code on display
The control panel displays F6, often immediately after a meat probe is inserted into its receptacle or during a probe-assisted cooking cycle.
Probe temperature display shows extreme or nonsensical reading
The probe temperature readout on the display may show 32°F, 999°F, or dashes, indicating the sensor signal is shorted and not producing a valid resistance value.
F6 appears immediately upon inserting the probe
The error triggers within seconds of connecting the probe plug to the oven's probe receptacle, confirming the probe itself is the shorted component.
Possible Causes
Shorted meat probe — moisture or physical damage
Internal wire insulation inside the probe has failed due to liquid intrusion, being dropped, or the cord being pinched repeatedly in the oven door, causing an internal short.
DIY PossibleProbe destroyed during self-clean cycle
If the meat probe was left plugged in during a self-clean cycle, temperatures above 800°F destroy the probe's thermistor wire, creating a permanent short.
DIY PossibleFaulty probe receptacle or board probe circuit
The probe jack receptacle pins can short together due to corrosion or grease intrusion, or the probe input circuit on the control board can fail internally.
Requires ProfessionalSafe Checks You Can Do
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1
Remove the meat probe and reset the oven
Unplug the meat probe from the probe receptacle inside the oven cavity. Press Cancel, then disconnect power at the breaker for 60 seconds. Restore power and test normal baking without the probe.
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2
Inspect the probe cord for visible damage
Examine the full length of the probe cord for cracks, kinks, melted insulation, or pinch marks. If any are found, the probe must be replaced — do not attempt to tape or splice probe wiring.
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3
Test the probe receptacle for debris
With power disconnected, inspect the probe receptacle opening (usually on the oven side wall) for grease buildup or debris bridging the contacts. Clean gently with a dry cotton swab. Do not use liquids inside the receptacle.
When to Call a Professional
Contact a qualified technician if:
- F6 persists after removing the probe and power-cycling — probe receptacle or board probe circuit requires professional diagnosis.
- New replacement probe immediately triggers F6 upon insertion — receptacle contacts are shorted and need replacement.
- Oven also shows temperature inaccuracy (baking faults) without any probe — possible compounding sensor failure.
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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