Valve leaking slightly on Glowworm Betacom 4 24c boiler.

barrysmith · 2026-03-19T16:33:28+0000

Hi,

First time posting here, this part has started leaking slightly on my Glowworm Betacom4 24c, it is on the heating return (obviously wouldn't go anywhere near it myself if it was a gas pipe).

Where do I find a replacement part? Or is there a fix without replacing it?

Any help here would be appreciated, thanks.

CountryFan · 2026-03-19T16:35:41+0000

Is it coming from the nut above and maybe just wants tightening? It could be from inside the boiler. Or perhaps the filling loop part has failed it the return valve

barrysmith · 2026-03-19T20:08:55+0000

CountryFan said:
Is it coming from the nut above and maybe just wants tightening? It could be from inside the boiler. Or perhaps the filling loop part has failed it the return valve

Not coming from the nut unfortunately, it's coming from the join of the two parts in the yellow box.

CountryFan · 2026-03-19T20:58:21+0000

Sorry, but I can’t seem to locate the part. When looking in the manual it states spares on page 23, yet they’re not there!

barrysmith · 2026-03-20T09:42:59+0000

CountryFan said:
Sorry, but I can’t seem to locate the part. When looking in the manual it states spares on page 23, yet they’re not there!

Yeah, this is very frustrating, it shows a completely different part in the manual.

Its seems the fitter might have used parts from a different but very similar (in looks at least) boiler as the vales are shown in these videos.

Even here

denso13 · 2026-03-20T10:09:31+0000

Not cheap, used one here, https://www.ebay.co.uk/itm/305289651246

barrysmith · 2026-03-20T10:20:52+0000

denso13 said:
Not cheap, used one here, https://www.ebay.co.uk/itm/305289651246

FFS, that looks like the one, it seems the original fitter might have used parts from the Betacom 3 or Betacom Energy 25c, the Energy 25c is the boiler shown in the videos above.

denso13 · 2026-03-20T11:34:12+0000

That is the correct part for the Glowworm Betacom4 24c, like yours, same part as the other boilers you listed above.

barrysmith · 2026-03-20T12:04:27+0000

denso13 said:
That is the correct part for the Glowworm Betacom4 24c, like yours, same part as the other boilers you listed above.

Shows a completely different part in the manual, I'll have to buy it regardless though. Cheers.

denso13 · 2026-03-20T12:06:44+0000

Wolseley, for example,

diynot

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Valve leaking slightly on Glowworm Betacom 4 24c boiler.

Similar threads