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