Biasi 28S boiler leaking from diverter valve Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[troga123]

Hi I have a Biasi 28S boiler leaking from diverter valve, removed and cleaned it but still leaking anyone any suggestions?

[htg engineer]

Buy a diaphragm/service kit, change all seals, o rings a diaphragms.

Can cost anything from £5 - £50 - but alot cheaper than a diverter valve.


htg

[troga123]

Hi many thanks for getting back to me. A bit odd this, as I said I removed and cleaned everything on Friday, was leaking really badly up till yesterday evening, just after I posted the message, and now seems to be only leaking a few drops per hour. I don't want to strip it down again in case I make it worse.

Do you know of any sort of spray sealer I can use?

Many thanks again.

[troga123]

Hi just realised I think I've told you the wrong place where it is leaking from, its not from the diverter valve itself, it is where the diverter valve joins the body of the unit.

There are 2 screws that hold it in place, and on the top you have input and output tubes.

Many thanks again[/img]

[htg engineer]

I know it's a DIY site, but spraying with some sort of sealer is a bodge job and will only be a temporary fix.


htg

[eggers]

is it leaking through the spindle between the water differential valve and the diverter body?
you can try a service kit but chances are the valve will need replacing