worcester 37 cdi

[P4ULT]

hi all

i fitted practically a new system apart from a radiator and a bit of existing pipework all has been well for a while but recently the pressure has started dropping i can find no leak so i re pressurised the expansion vessel and it worked for a few days now we have the same problem any advice would be helpful the system has 12 rads with 1 more due to be added the boiler is a 37 cdi greenstar hopefully one of you guys can help?

many thanks

paul

 

[wnjswozo]

check prv ,might be worth putting some ls1 internal leak sealer in system

 

[derrybongo]

PRV or internal leak on the expansion vessel. but would seem unlikely on a new boiler

 

[wnjswozo]

not in boiler ls1 goes in rads/boiler with water,runs round system,and will seal any small leaks,like the old rad weld for cars

 

[P4ULT]

had another check for leaks today can find nothing worcester are going to change expansion vessell on monday if all else fails leak sealr it is