We have a Halstead Ace High Combi boiler which has begun to misbehave. I'm thinking it needs a new PCB but wondered what any experts would suggest. The symptoms are as follows:- 1/ Boiler will trip off every morning if on timed, and also if hot water is turned on when boiler is set to "hot water only" as in summer use. When reset, the hot water will often still not fire up the boiler. 2/ When boiler put on constant it will trip once, occasionally twice, then will work normally, whole system heats well. Hot water then works normally. 3/ Occasionally boiler will not trip but nothing will happen anyway- water will run but will not fire up boiler. Pressure in system is good, rads all heat, no air in system, when boiler fires everything works as normal and keeps working. Timer clock is working normally. Any ideas? Dave
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!