Duo Tech Condensate discharge

[Groovejet]

A relatives house I’m helping with kitchen remodel , we kept hearing water dripping down the outside downpipe.
When I looked it wasn’t runoff from the roof but the condensate pipe was discharging a substantial amount of water then it would stop , then start again.
I don’t know how long it runs for but I do know the pressure isn’t dropping at boiler .
Can anyone elaborate ?
In the past I’ve fixed a heat exchanger fault with Leak Sealer. And 6 years later it’s still going good, but where’s this water coming from

 

[terryplumb]

Was the boiler running ,central heating or hot water ?

 

[Groovejet]

Deffo wasn’t hot water running. We were working downstairs at back patio, so if the heating was on or was on timed I couldn’t say for sure.
Sorry this is late reply

 

[dilalio]

Deffo wasn’t hot water running. We were working downstairs at back patio, so if the heating was on or was on timed I couldn’t say for sure.
Sorry this is late reply

If the boiler is running, it will constantly produce condensate... Well, it should if its performing properly.
Some condensate traps have a self syphoning action which means they fill to a certain level and then discharge, hence the stop/ start of running water, others trickle constantly.

 

[Groovejet]

No the boilers not running , but he says that he’s not having to re pressurise boiler , so it doesn’t add up.
But I seen it constant dribbling .
Sorry , that’s why I’ve posted this , because it’s a issue & not just the typical operation of the boiler
Im gonna check it out again. For peace of mind .

 

[dilalio]

Is filling loop letting by?
And discharge run into condensate drain?
Make sure mains water can't get into the CH circuit.

 

[Johntheo5]

If the PRV is working properly then the boiler pressure will be at a constant 3 bar if the filling loop is passing, a leaking plate heat exchanger if a combi might give the same symptoms.