Hi everyone when i put my ch on with only a 4 rads on the presure gauge goes from 1 bar to 2 bar wich i think is normal but if i put all 7 on the pressure gauge goes all the way round to 3 bar increasing a bit more with each rad that i put on. anyone any ideas ? it has just had a new expansion vessel put in to try and fix the problem but it is no different. The pressure in the vessel is 1 bar The boiler has been in for 18 months with no problems untill this
Thanks cris
Thanks cris