Ferolli Optimax HE31C - Error code d1?
Hmmmm
Newly installed boiler working fine for heating but when hot tap is run, after tap is closed boiler goes to d1 and seems to 'reset'. Takes a couple minutes and then all is fine again.
Strange - anyone have an idea ??
The mains water pressure is quite high (2+ bar), could this be the cause ??
Steve
Hmmmm
Newly installed boiler working fine for heating but when hot tap is run, after tap is closed boiler goes to d1 and seems to 'reset'. Takes a couple minutes and then all is fine again.
Strange - anyone have an idea ??
The mains water pressure is quite high (2+ bar), could this be the cause ??
Steve
