Ideal Combi no pressure.

Simon Dunne · 29 Mar 2021

My ideal combi 30 boiler keeps losing pressure. Every time the heating is on there is a continual drip from the condensate pipe and the following day there is no pressure. Hoping it is not a big fix. We have’s checked for leaks in the CH pipework so I don’t think it’s that. It has been mentioned that the over flow can sometimes get stuck on?

terryplumb · 29 Mar 2021

The condensate pipe is plastic ,and water coming from it, when c/ heating is on, is normal.
The pressure relief pipe is copper ,and terminates externally. Water should not drip from there. Is it this pipe that drips ??

Simon Dunne · 29 Mar 2021

No it’s the plastic condensate pipe. It just seems to drip all the time the CH is on. Someone else has said it may be a leak under the house as to lose pressure everyday is very excessive.

Madrab · 29 Mar 2021

The condensate pipe can drip all the time when the CH is on, it's what it does when condensing. If it keeps dripping once the boiler's switched off that's when you start to get concerned. The other place to look, as suggested, is the copper pressure relief pipe (may be what someone is referring to as the overflow) that exits through the wall, usually on a line under the flue on the outside wall.

ianmcd · 29 Mar 2021

how do you know that the condensate is dripping ?

CBW · 29 Mar 2021

What are you calling the overflow?

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Ideal Combi no pressure.

Simon Dunne

terryplumb

Simon Dunne

Madrab

ianmcd

CBW

DIYnot Local

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