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Boiler capped for faulty expansion vessel, prv and filling loop??
Sorry was a quick one there, I done some cp12s at a block 7 in total. All passed. Now another engineer has gone there 2 months later and capped the boiler for this. I now know the prv was opening slightly and leaking outside and the filling loop was stuck open... How this was re-pressurising the system I don't know as I always disconnect the loop and cap!!
Never seen a prv fail to open.
Seen plenty not reseal afterwards.
More clarification needed.
Never seen a prv fail to open.
Seen plenty not reseal afterwards.
More clarification needed.
Had this once on a Worcester 440. When I got the PRV out to replace it is was full of sludge and all other kinds of muck. I'm guessing something has got in there to jam it and not allow it to open.
Muppets
How would carp stop it from lifting? Unless it was on the outlet side.
I carried out my service as usual, checked the PRV and got absolutely nothing from it. ...., it was the twist operated PRV and regardless of how many times I twisted it or if I twisted it to the open position
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