After success on this site recently i thought i'd try to resolve my latest problem, my hot water and ch has been on all day, the heating has worked fine but now the hot water runs hot for about 30 secs then turns tepid, turn tap off for a minute then its hot again for 30 secs and so on. I recently (a month ago) changed the three way valve which has worked fine since. Could there be air trapped in the cylinder?
Any help much appreciated.
Tidders.
Any help much appreciated.
Tidders.