|
Re: Combi Boiler
I had a similar problem to this last year, not saying it is the same as yours, but my water temp was lower upstairs.
My problem was that the diaphram in the switch over valve from central heating to hot domestic water had perished a little and so there was a hole in it.
I had a new one fitted and it solved the problem.
My Combi is 6 years old.
|