have a problem with my mates heating system honeywell sundial y system with 3 way valve, room stat, cylinder stat and programmer,
circumstances are that both pump and motorised valve were changed some 2 years ago following a couple of new rad installations, system has worked fine, inhibitor in the water, however he has just returned from a week away on holiday, he has fired up his system calling for hot water only with the room stat down, the rad's are getting hot, obviously telling me the valve is not closing to the central heating loop, i cannot imagine the 3 way valve packing in so early, i have one in my house that has been there for some 15yrs, (but i regularly drain down flush and install bothe x100 and x200 for a nice quiet system, any suggestions would be appreciated and anything to try out first before costly outlay, regards Dave
circumstances are that both pump and motorised valve were changed some 2 years ago following a couple of new rad installations, system has worked fine, inhibitor in the water, however he has just returned from a week away on holiday, he has fired up his system calling for hot water only with the room stat down, the rad's are getting hot, obviously telling me the valve is not closing to the central heating loop, i cannot imagine the 3 way valve packing in so early, i have one in my house that has been there for some 15yrs, (but i regularly drain down flush and install bothe x100 and x200 for a nice quiet system, any suggestions would be appreciated and anything to try out first before costly outlay, regards Dave