Thanks kev,
The PRV was my first port of call and I forgot to mention that I replaced it about 2 weeks ago as the old one was leaking at about 2 bar. I am constantly topping up the pressure to a minimum of 1 bar.
Hi I am hoping that someone might be able to help me out. I have a halsted ace boiler that has decided to misbehave. The problem is as follows.
The boiler starts to fire as normal, the lights on the front indicate a demand for hot waster or central heating, the pump fan and burner kick in...