Saunier Duval Isofast condens F35E....nothing working?
I have been on holiday and turned the boiler off at the mains, on returning turned it on and the remote said Radio fault ...changed the batteries in the remote ... nothing on remote or boiler no manual control at boiler ...nothing dead, there is mains at the spur unit, any help would be appreciated, thanks
Dave Ebbrell, August 2017