I have got a baxi 105e that is going hot and cold..... from stone cold on HW it fires up and the water gets up to temp coming out of the tap, it then goes cold after a few minutes but comes back again hot and cycles like this ... Have put new senors on it so know they are ok, and have took out plate heat exchanger and checked this it seems perfectly clear.
I am get 10.5 v DC to the modulating coil during HW demand, as the red lights get upto 70 degrees the flame stays at high with no drop in voltage till the flame goes out completley flame does not drop down at all.. Would i be right in assuming it is a faulty board
I am get 10.5 v DC to the modulating coil during HW demand, as the red lights get upto 70 degrees the flame stays at high with no drop in voltage till the flame goes out completley flame does not drop down at all.. Would i be right in assuming it is a faulty board