ldeal logic + 30kw combi

[plumber_UK]

ideal logic combi losing pressure daily. Initially i thought it was a leak on the system so all the pipework was checked and no leaks found
The flow and return were isolated overnight with no demand and there was a pressure drop. I disconnected the condensate pipe and put a bucket under it but no leak.
I did the check a second night but it didn't drop.
i thought i must have missed something so i have isolated the flow and return again and the pressure has dropped within 30 minutes by around 0.5bar.

Has anyone come across this before ?

The boiler is under warranty but i dont want ideal to come out and say its nothing to do with the boiler.

 

[sammathias]

Get ideal out. Tell them.you have isolated the system pipework and pressure has still dropped.

 

[townfanjon]

Put pressure up to about 2 bar and try it

 

[Scott_D]

Any drips from the PRV pipe outside?

 

[jtsplumbing]

Get them out on a warranty call, could have a pin hole in EX , but don't mess around with boiler if still under warranty

 

[plumber_UK]

Thanks. i'll get ideal out and see what they say.