Central heating pressure loss

[Nik01029]

**update**
Friday I had a new boiler fitted. (Vaillant ecotec).
Since then, the pressure has been much more stable, only dropping the amount that might be expected when the whole system has been drained..
're checked this morning, and it doesn't appear to have lost any pressure at All, before it was losing at least half a bar overnight.
So it looks like the heat exchanger was the problem...
1st impressions of the boiler are that it's so quiet I struggle to hear it!!!

Thanks for all the valued replies...

 

[philbury]

Well, it lost pressure again last night so Vaillant are going to have to come out again!

 

[Scott_D]

Vaillant out again? How many times have they been?

 

[ShaunCorbs]

Why when it's a leak on your system and not the boiler

 

[ShaunCorbs]

Vaillant out again? How many times have they been?

He's changed boilers 😀

 

[Scott_D]

He's changed boilers 😀

That's what I mean, new boiler and they have already been out ?

Any additional expansion fitted?

 

[Nik01029]

I think he's talking about a different boiler