Error Code F3
Touch key short / communication error
Moderate
Address soon - your appliance may not work properly
Also displayed as: F3
How to Fix
- 1
Plug in the unit.
- 2
Check the connecting states between Touch PCB and CN53 of Main PCB. If connection is normal, proceed.
- 3
If connection is loose or disconnected, reconnect and retest.
- 4
If F3 persists after reconnecting, replace the Control Panel assembly (Glass Touch PCB).
- 5
After replacing control panel, verify button operation using key test mode: Press CLEAR, press upper BAKE and BROIL simultaneously, press BAKE and BROIL simultaneously again, then press NUM 7. Test each button in the sequence shown in the appendix key test chart.
- 6
Each key press should produce a beep and display the corresponding number on the VFD. If a key does not respond, it is defective.
- 7
If button operation is still faulty after replacing Touch PCB, replace the Main PCB.
This Error Applies To
LG LDG431 Series Ovens & Ranges