I had the same problem and found that if i disconnect the white wire on top of the condensate trap the boiler ran fine. There seemed to be dirt build up on the screw. I cleaned the screw and put the wire back in place and had no problems since.
I had the same problem and found that if i disconnect the white wire on top of the condensate trap the boiler ran fine. There seemed to be dirt build up on the screw. I cleaned the screw and put the wire back in place and had no problems since. :D
THE PROBLEM IS THAT THERE IS NO WAY TO GET THE CH TO KICK IN. TURN ON THE HOT TAP AND THE BOILER FIRES UP GREAT GUNS.THE PROBLEM STARTED AFTER A POWER CUT AND WHEN THE POWER CAME BACK THE CH DIDN'T. ANY HELP WELCOME THANKS