baxi combi boiler 105e?

I have just had the same problem, changed the pressure differential switch but but still same intermittant problem. Finally changed the PCB now OK.

Now got problem with pressure going too low overnight and not start up in the morning any ideas anyone ?.

fed up with combi boilers
November 2010

I have very strange noises coming from my boiler every time I fire it up. It works fine, I think it is air in the system. Can anyne tell me how to bleed this air outplease?

David

David
April 2008

I have very strange noises coming from my boiler every time I fire it up. It works fine, I think it is air in the system. Can anyne tell me how to bleed this air outplease?

David

David
April 2008

bearing faulty new fan

hi-spec plumbing
April 2007