Recent content by PDEX

Brilliant. Thank you very much for all your help! I'm surprised I'm having to replace anything really. Boiler's only 18 months old! Perhaps this is quite common though? :roll:

Hi again. Had a look at the website. Doesn't show any O rings. Are they in the diverter valve itself or in each of the DHW & CH pressure differential valves? Many Thanks

Thanks for that! Do you know of any links to exploded diagrams, etc please?

Yes. Sorry, didn't realise there were different types of 80 HE :?

I have a Baxi 80 HE. The problems is as follows. Turn on hot water tap, all ok. When I turn it off I get a loud high pitched noise! I've discovered that when I tap or pull (very gently) on the DHW pressure diff valve the noise disappears, only to return next time. :x Any help/ideas greatly...