Elbi pressure vessel

[kristy22]

Posted a thread recently about loss of pressure and just to be a bit more specific and to say that it is an Elbi pressure vessel. Any more comments please? Anyone experienced a similar problem, Valiant boiler.

 

[Billy Bob Bob]

hi,could be a faulty or flat expansion vessel,have you tried re-filling it with air?you could also have a leak in the system or if your very unlucky the boilers heat exchanger if its a condenser,i dont know how capable you are but you can create a temp expansion vessel with a rad,this will prove if its knackered