F.381 — Burner in a fault state (Flame loss during operating phase)

What does F.381 mean?

The burner loses its flame during normal operation. This can be due to gas supply issues, flue gas problems, or issues with the ionization electrode or flame body assembly.

• Insufficient gas supply (low gas pressure)
• Flue gas recirculation in balanced flue system
• Clearance issues or contamination of ionization electrode and flame body assembly

Click steps to track your progress.

1. 1

   Reset the appliance.

2. 2

   Check your gas supply to ensure it's functioning correctly (e.g., ensure main gas valve is open).

3. 3

   If the fault persists, contact a qualified technician to check for flue gas recirculation or inspect the ionization electrode and flame body assembly.