the blow off was constantly dripping and losing pressure,
so i bought a knew pressure relief valve and changed it as instruction manual.
filled the system back up to standard 1.5 bar after 5 minutes the pressure gauge is shooting right upto 3 - 3.5 bar.
what could be the cause of this?
i have a worcester 280 rsf, the hot water is fine no problems.
when i select the c/h it goes through the motions fires up ok but after about 10 - 20 seconds it cuts out, after about 3 mins tries again but does the same thing.
anybody have any ideas
many thanks.