When the burner fails to ignite three times or the flame is accidentally extinguished, the boiler will automatically alarm. You need to remove the fault according to the fault code, then press the "OK" button to reset and reignite.
When the burner is not ignited three times or the flame is accidentally extinguished, the boiler will automatically alarm and you will need to press the "OK" button to reset and re-ignite after troubleshooting according to the fault code.
When the burner fails to ignite for three times or the flame goes out unexpectedly, the boiler will alarm automatically. You need to clear the fault according to the fault code, and then press the "OK" button to reset and re ignite.