Ferroli boiler fault code fh

ferroli boiler fault code fh

The FH is not actually an error code. It just indicates forced removal or air from the system. The circulation pump is switched on for 3 minutes to drain the heating system of air.

If you do not need this function, you can disable it by pressing and holding the Eco/Comfort button before starting the boiler. Once all switch-on symbols appear on the display, let go of the button.