Your boiler is currently running an automated self-fill or air-purging process and will return to normal operation once this cycle completes.

Filling the product: The diverter valve moves to the mid-position. The burner and pump switch off (to fill or drain the product). If the pressure is lower than 0.03 MPa (0.3 bar) and then is above 0.05 MPa (0.5 bar) for longer than 15 seconds, the automatic purging function is activated. The function is active for 15 minutes.