Recent content by Kspencersmith

I was thinking air lock as I did have blockage on downstairs radiators which seemed to improve when system was left to settle for a few days and then air released through air vent by cylinder. If it is an airlock in the boiler how can it be released. Appreciate all comments about...

Central heating system was blocked . Has now been flushed out, pump replaced and motorised valve replaced. All radiators now heating up and hot water, but boiler cutting out and firing up again every 20 seconds.

Hello, Thanks for your help to date. If the microbore manifolds are blocked; whats the best way of cleaning them ?

Thanks will try to get under floor boards to investigate

sorry what do you mean by microbore manifolds

The boiler is HW/CH Myson Apollo and its mainly microbore with 15mm going to an extension radiator

Header tank checked. Cold water supply fine.

:cry: please help. Serious money already paid out to plumber who diagnosed a blockage in central heating. WE had already changed pump and motorised valve. Pressurised wash carried pout by plumber and blockage cut out of pipe near boiler. The CH system worked ok for a few days and now the...