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
I am fairly certain this diverter valve rests in the dhw position so it is usually a dv fault. Thats one of the places I would look. Obvious things checked first though, like control signal continuity.
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