Hi Guys, i wondered if anyone would be able to shed some light on this problem, i have a Main combi 30HE that i have had for the last 7 years, but just lately the diverter valve stopped working (no movement of either pin) so i got a brand new one along with a new plate heat exchanger, while it was apparat i checked the 12l per minute restrictor and filter, I've checked all the thin sensing pipes, the pump is running, the pressure is correct, the auto air vent is open and working but its still not working, so I'm a bit stumped!
any help would be very much appreciated.
any help would be very much appreciated.