Error Code F3
Key short — touch keypad fault or communication failure
Moderate
Address soon - your appliance may not work properly
What This Means
Key short occurred 3 times within 90 seconds; Communication with Touch IC impossible for more than 60 seconds; Defective Touch PCB or key pad wiring
How to Fix
- 1
Plug in the unit
- 2
Check the connecting state between the key pad and CN03 of Main PCB; if connection is loose, reconnect or adjust
- 3
If connection is good, replace the control panel assembly (with Glass Touch PCB)
- 4
After replacing control panel, verify button operation using key test mode: enter test mode, select 't7' with + button, press START, then press keys in sequence — Cook Time, Start Time, Timer On/Off, Oven Light, Setting, Clock/Lockout, + (plus), - (minus); each correct key press displays corresponding number on VFD; double beep means wrong order; no beep means key is defective
- 5
If button still not operating after control panel replacement, replace the Main PCB
This Error Applies To
LG LSG4513 Series Ovens & Ranges (2015) (2015–present)
Related Error Codes
Sensor open — oven thermistor is open circuit
Sensor short — oven thermistor is shorted
Oven hot — oven temperature exceeds 650F continuously for 2 minutes during cooking (excludes self-clean)
Convection fan motor open — convection fan does not operate for cumulative 1 minute during convection fan operation period
Door lock fail — door lock motor fails to complete lock/unlock cycle; detected when door lock switch does not operate properly after motor rotates twice
Oven no heat — starting temperature 130F or below, oven temperature does not rise more than 10F from starting temperature within 5 minutes after cooking start (excludes Proof, Warm, Easy Clean)