Recent content by rossv

hhmmm no over heat button in sight... decided to bleed the sytem and boiler.. seems to be a **** load of air bubbling from the blled valve above the boiler

cheers, the over pumping has stopped. the actuator is wired correctly, and moves from hw to ch and mid pos when asked for. just boiler wont fire up now

HI all Im having a ch nightmare! I had hot water but no central heating. I replaced the actuator on the Sunvic mid position valve and I have replaced the Grundfoss 15/50 pump. Now the boiler doesnt fire up at all and brown dirty water gets pumped into the ch header tank in the loft...