Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Baxi issues

kcopp
kcopp Member Posts: 4,466

Hi Folks.

I have a customer w/ a Baxi 310Fi

older power vented combi that is in ok shape.

A leak has developed on the diaphragm switch. This is used to ramp up between heat and hot water... the pin that is activated w/ a micro switch is leaking around the nut and the sides.

I have looked at 2 different places and they have the part as no longer available. I even looked at a Fb marketplace unit but that had the same issue.

Any other options other than from italy/ via ebay?

Can this be pulled apart and repaired?

Anyone done that before?

part is 5629950

Thank you.

Comments

  • Tom_133
    Tom_133 Member Posts: 909

    Kcopp

    Sorry for the delay but Blodgett in Williston has them in stock and will UPS them to you

    Tom
    Montpelier Vt
    kcopp
  • If you have water coming out of the pin, then the diaphragm has a hole in it. Replace the diaphragm as the pin is on the dry side.

    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
    kcopp
  • kcopp
    kcopp Member Posts: 4,466

    Thanks All.

    Yes Blodgett in Concord was able to order it in for me. Thanks.

    In this case it was a little more than just the diaphragm.

    I replaced just that and it still leaked. Luckily I had the whole valve to make the fix.

    On the whole its a neat little unit.

  • Tom_133
    Tom_133 Member Posts: 909

    Kcopp,

    I rarely say one boiler is better than the other, it's like having the conversation about who was the greatest sports person through the years, it's silly to compare. But I will say I have quite a few Baxi's out there and man they have been great. When they finally do have an issue though they can be a nightmare to fix. I say that to say, I get why you put a little money into that old girl, but it may be a good thing.

    Tom
    Montpelier Vt
    kcopp
  • kcopp
    kcopp Member Posts: 4,466

    Tom.

    I was the 3rd contractor through. the 2 previous said swap it out…go new.

    I generally dont like doing that unless I really see something. I think there were much happier not having to shell out the cash.

  • kcopp
    kcopp Member Posts: 4,466

    Hi Again folks…

    More Baxi questions… 310fi Combi

    Same boiler. Apparently, each time the heat comes on there is a thumping noise. Sometimes hard sometimes soft.

    Does not do it when making hot water.

    thoughts?

    ty. kevin

  • Tom_133
    Tom_133 Member Posts: 909

    Are you using an external expansion tank along with the pancake internally?

    Man, it's been so long since I have touched one of those. Is it a mechanical bang or a combustion bang?

    Tom

    Tom
    Montpelier Vt
    GGross