I have a baxi 105E. It has developed a fault in that when you demand hot water the boiler will light and the water heats nicely. When it gets to about 40 degrees the flame shuts down and when the water cools it light up again and just cycles like this continuously. There are no fault lights showing. My plumber has changed the PCB, changed the hot water and heating sensors, changed the air pressure switch and cleaned the secondary heat exchanger. If you turn down the heat nob for hot water on the front panel the flame will stay lit but the water is cool so it sounds heat related. Any ideas
Posted on another forum, anyone got any clues.
Primary HX is clear, and he has changed all the sensors,
Posted on another forum, anyone got any clues.
Primary HX is clear, and he has changed all the sensors,