LG
All LG Oven/Range Error Codes
Every known LG oven/range error code with plain-English explanations, difficulty ratings, and step-by-step DIY fix guides.
32 error codes
F1
The oven temperature sensor circuit is open (no continuity).
Moderate Fix
30–60 minutes
F11
The main control board and display board have lost communication.
Advanced Fix
30–60 minutes
F19
The door lock motor wiring is reversed, causing the motor to run in the wrong direction.
Moderate Fix
20–40 minutes
F2
The oven has overheated beyond its safety threshold.
Advanced Fix
30–60 minutes
F3
The oven temperature sensor has a short circuit.
Moderate Fix
30–60 minutes
F5
The oven relay control board has malfunctioned.
Advanced Fix
30–60 minutes
F6
The broil element or its relay circuit has failed.
Advanced Fix
45–90 minutes
F7
A key on the oven touchpad is stuck or shorted.
Moderate Fix
20–45 minutes
F9
The oven door lock motor failed to lock or unlock the door.
Moderate Fix
30–60 minutes
tCL
The oven is displaying a self-clean or vent cleaning reminder.
Easy Fix
10–20 minutes (to clear) + self-clean cycle time
F0
The oven temperature sensor has an open circuit.
Moderate Repair
20–40 minutes
F4
The lower oven temperature sensor is shorted.
Moderate Repair
20–40 minutes
F8
A control panel key is stuck or the meat probe sensor has an error.
Moderate Repair
15–30 minutes
F10
The upper oven door lock mechanism has failed to lock or unlock.
Moderate Repair
20–45 minutes
F12
The oven failed to reach 150 degrees F within 5 minutes of preheating.
Advanced Fix
30–60 minutes
F16
A general oven sensor issue has been detected.
Moderate Repair
20–40 minutes
F17
The convection fan is not operating during a convection cooking cycle.
Moderate Repair
30–60 minutes
F18
The meat probe is detecting incorrect temperatures or has a wiring issue.
Moderate Repair
10–20 minutes
F20
The lower oven door lock mechanism has failed.
Moderate Repair
20–45 minutes
F27
The cooling fan stopped working during a self-clean cycle.
Moderate Repair
20–40 minutes
F33
A front induction burner temperature sensor is reading incorrectly.
Moderate Repair
15–30 minutes
F36
The induction burner transistor module has detected a fault.
Advanced Fix
30–60 minutes
F38
Communication failed between the main control board and the induction inverter.
Advanced Fix
30–60 minutes
F42
The range has detected an abnormal supply voltage.
Moderate Repair
10–30 minutes
F62
The sous vide cooking function temperature sensor is malfunctioning.
Moderate Repair
20–40 minutes
F69
The sous vide function is not reaching or maintaining the correct temperature.
Moderate Repair
15–30 minutes
H5
The cooktop surface temperature exceeds 150 degrees F after a burner has been turned off.
Easy Fix
Varies (wait for cooling)
PF
The oven detected a power interruption during operation.
Easy Fix
1 minute
5b
The oven is in Sabbath Mode, which restricts certain functions for religious observance.
Easy Fix
1 minute
F21
The upper oven convection fan is not running or running incorrectly.
Advanced
30–60 minutes
CF7
Communication failure at the left control module.
Advanced
30–45 minutes
CFA
Excessive electrical current detected in the oven's circuits.
Professional
45–60 minutes