Flame signal detected before ignition.
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check the appliance cover. Ensure it is secure. Flame detection sensor can detect an external light source.
2. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than 2.5DC before ignition, less than 2.5DC after ignition.
3. If the problem persists, replace the main control.
