O, ya, Possibly Dwell,More then likely its an Oring issue.. On the Pin..
its an Over Pressure thing.. WORST case its the Noid, try make a claim its that and youll get it cheaper.. more then Likely its an Oring somewhere. and since you can buy ALL the orings at HomeDepot/Lowes (thats what it was designed for) you can replace them ALL for like $5 and have tons of spare.
if that doesnt work,Reset Board. Reset the HPR and LPR, Change HPR if needed. other issues is it could be LPR spring,which again is a $5 fix.