Releasing pressure from Vaillant Eco Pro 28

[LdS]

Hi all

Would appreciate a step through as to how I can reduce pressure from our Vaillant EcoPro28. It was showing 2.8bar this morning.....

thanks!

 

[oldplumber]

I presume it was working, what is the cold pressure, is your filling loop letting by? if you need to drop the pressure bleed a radiator, do not use the prv.

 

[Puddle]

Why has it gone up ?

best way may be for you to open vent on a radiator slightly,until water comes out, with old tower under the rad

As said do when system cold,take to 1,5 bar,check filling loop closed

If pressure goes back up could be filling loop passing slightly or plate heat excchanger could be split,hopefully not

 

[oldplumber]

my turn again, or you could have lost pressure in your expansion vessel but thats another story. tbc