Gents, I am so greatful for previous advice on my boiler. I recently posted problems with my 105 he instant (diverter v/v change) which cured that particular problem. However, i think now i have a DHW heat ex problem? Hot water is hot instantly but i have to throttle the flow to keep some temperature in the water, its hot but not hot enough like it used to be.
I have been underneath the boiler with the hot tap on and the bypass from the diverter v/v is too hot to touch, and the CH return pipe is warm but no apparent flow through it.
Is this bypassing a normal occurence by design? Could it be a blocked/restricted heat exchanger?
Any advice greatly appreciated, cheers.
I have been underneath the boiler with the hot tap on and the bypass from the diverter v/v is too hot to touch, and the CH return pipe is warm but no apparent flow through it.
Is this bypassing a normal occurence by design? Could it be a blocked/restricted heat exchanger?
Any advice greatly appreciated, cheers.