Loosing pressure, but no sign of leak

[unclebob1]

That depends on the warranty ,who gave it to you and exactly what is being warranted. You must have that information surely.

The standard intergas warranty?

 

[dilalio]

If the PRV has lifted (and failed after lifting due to not reseating properly), this is most often due to insufficient expansion, within the pressurised system, or a passing filling loop.

Manufacturers don't "usually" cover this as it is something that should be checked and addressed at service intervals, assuming also that sufficient expansion for the installation has been designed in.

PRVs can "sometimes" be encouraged to reseat by flushing through or cleaning out.

 

[unclebob1]

Hi, just to close off, Pressure vessle needed a recharge, and the PVR was changed. Been a week so far, and no leak outside