Baxi 80e assistance anyone.... Please

[Riley]

Chaps

have been working on the above boiler today. Had to change the diaphragm in the diverter so took off the round assembly on the front of the diverter changed the diaphragm and replaced. Tried to pressurise the system and had a leak at the joint between the round part and the rest of the diverter. Have had it apart 3 more times and cannot get it to seal. Baxi say it doesn't have an oring seal or anything and I'm at the end of my tether.

Can any of you help

cheers

matt

 

[diamondgas]

Do you mean the diverter side, water coming 'out of' the spindle?

 

[Riley]

Do you mean the diverter side, water coming 'out of' the spindle?

Sorry I know it's hard to imagine without seeing it. In the attached pic I removed the round part of the valve showing at top of page. The leak is at the point where it mentions grub screws. I was of the impression that this should be a dry chamber but it doesn't seem to be

 

[Nostrum]

No picture ?

 

[Riley]

 

[Riley]

Sorry didn't attach

 

[diamondgas]

Sorry I know it's hard to imagine without seeing it. In the attached pic I removed the round part of the valve showing at top of page. The leak is at the point where it mentions grub screws. I was of the impression that this should be a dry chamber but it doesn't seem to be

No attached picture .. however, when you get the diaphragm kit there's this little 'o'ring you wonder WTFks that for? Well it goes on the diverter side of the hot water section, rarely replaced! Fit's on the 'opposite' side of the 'saucer' shaped hot water section.. if that makes sense? Take the grub screw out and replace the 'o'oring inside

 

[diamondgas]

View attachment 17985

your batteries low

 

[Ollieg]

its leaking from the spindel of the diaphram housing or the diverter itsself.

 

[Riley]

I was adamant there should have been a seal but the bloke in the merchants (not my regular one) said it should be a dry chamber and there was no seal.

 

[Nostrum]

It'll be leaking back through the spindle from the diaphragm water section rather than out the diverter section I reckon. Is there not an o ring that the spindle passes through?

 

[Ollieg]

It should be a dry chamber. There is a very small o ring inside the pressure diff switch which if failed will leak mains water into the Dry chamber.
Or the large diverter bush has failed which will leak CH water and cause the boiler to lose pressure.

 

[Riley]

its leaking from the spindel of the diaphram housing or the diverter itsself.

It's leaking between the differential valve and the diverter manifold

 

[Ollieg]

It's leaking between the differential valve and the diverter manifold

I know. There are 2 spindels with 2 seals that water can leak past.

 

[Riley]

No attached picture .. however, when you get the diaphragm kit there's this little 'o'ring you wonder WTFks that for? Well it goes on the diverter side of the hot water section, rarely replaced! Fit's on the 'opposite' side of the 'saucer' shaped hot water section.. if that makes sense? Take the grub screw out and replace the 'o'oring inside

Understand completely mate. So there should be an o ring where the grub screws are. Bloody merchant swore blind there wasn't.