Losing pressure through Condensate pipe

[pem1]

Hi my Worcester bosch 28i boiler is losing pressure from 1 bar to 0 in less than a day while running.

The condensate pipe drips at a very fast rate whilst its running, I know its supposed to drip but any faster and it would be a stream im sure.

Heard from other forums that it could be a leaking heat exchange.

Anyone had this before?

 

[ianmcd]

yes it could be the heat exchanger but its easy to check, just switch the boiler off, wait about 15 mins then go and ckeck, if the condensate is still dripping it is most likely the heat exchanger

 

[pem1]

ITs dripping whilst the boiler is off but at a much slower rate. Can the heat exchange be repaired? Or is it just a replace it with a new one? Theyre not cheap

 

[ianmcd]

It does sound as though it is the heat exchanger then and if it has pin holed then you will have to replace it, have a look at Worcesters fixed price repair it will probably be cheaper than buying a heat exchanger

 

[pem1]

thanks I will, after leaving the boiler a little longer the drips have virtually stopped less than 1 a minute. Its when its running that it goes crazy

 

[Gas2Air]

thanks I will, after leaving the boiler a little longer the drips have virtually stopped less than 1 a minute. Its when its running that it goes crazy

You sure you're looking at the condensate and not the prv pipe?

 

[pem1]

pretty sure theres a plastic u bend with a cap that I removed and its dripping through the there. The other end of that u bend goes to plastic piping that goes outside. Theres also a copper pipe that goes out side and I think that's the prv one.

 

[Gas2Air]

As said then, fill to 2 bar, leave it off, check condensate for leakage.

Forgot to say, the trap will be full, so don't take that as an indication of leak.

 

[pem1]

I isolated the boiler and pressurised to 2 bar and left off overnight. The pressure dropped to 1.75, only the tiniest spot of water from condensate pipe.

When I reopened the valves the pressure dropped immediately to 0

Not sure what this means?

 

[Dan Robinson]

Boiler is probably fine.

 

[Hugh Jaleak]

If the pressure dropped that sharply on opening the valves then the leak isn't in the boiler! The leak is in the system, not the boiler.

 

[DP]

if the condensate is still dripping it is most likely the heat exchanger

Boiler is a WB 28i. It is a combo boiler but not a steamer.

OP, please check boiler model