What is causing water to come from overflow pipe

[Paul Langley]

Riley - I now understand that what you are saying is it is illegal for me to do it. Useful info for me as I have just returned from living abroad for over 30 years and was not aware of this regulation. Thanks

 

[Paul Langley]

Riley - Sorry; missed off the bit about the pic. It would only be a pick of a brick wall with a bit of vertical 15mm copper pipe venting into the open air outside the house.

 

[Riley]

Ok but ignorance is no excuse my friend. It’s been illegal for some years for unqualified or non competent persons to work on gas appliances. I would recommend a gas engineer visit to check that the seals have been replaced correctly to prevent risk to you and your family. Whilst there they may be able to advise on your overflow problem.

 

[Riley]

Riley - Sorry; missed off the bit about the pic. It would only be a pick of a brick wall with a bit of vertical 15mm copper pipe venting into the open air outside the house.

Is the boiler on the other side of the wall?? Are you often topping up pressure on your system? Or is it a vented system?

 

[Paul Langley]

Riley - The boiler is, in fact, on the first floor landing with the hot water cylinder and associated pipework etc. Before the boiler expansion vessel was changed, the system lost pressure over a couple of weeks and needed topping up to prevent the boiler going into fault mode. Since the expansion vessel was replaced, the system now maintains pressure and no longer needs topping up.

 

[Riley]

Can we get a pic of your cylinder please

 

[Paul Langley]

Riley - I'll take a picture tomorrow and post it if I can find out how I do that on this forum. In the meantime, if it helps it is a Kingspan Range Tribune HE stainless cylinder. The secondary flow and return are not used and are capped off. The central heating system was designed by Nu- Heat who are bound to be known to you I suspect.

 

[Riley]

Unvented cylinder. Based on description. Sorry @SimonG was right. Doh.

I think you have an underlying problem here which again sadly you are not qualified to work on. You require an engineer with G3 ticket

 

[Paul Langley]

Riley - Thanks for everything. Not easy here on the Isle of Wight. Only been here a short while. Emailed the gas engineer whose sticker was on the boiler as the company who serviced it in the past together with one other I got from the internet. That was over two weeks ago and I am still awaiting a response! Maybe a member who has a G3 ticket an who is on the island will see this post; here's hoping!

 

[Riley]

Take a look on the gas safe site. Many engineers on. There hold G3