Our Ideal Boiler will start up normally and burns for a period of time, but it cuts off the burner element after a while. The internal fan can still be heard running, but the boiler will not fire up again until after 20 minutes. It then burns for around 6/8 minutes and then cuts itself off again. And hence the cycle begins. We have fitted a new Printed Circuit Board and this has not fixed the issue. Any previous experience - help suggested.

A Alexander, December 2008

do the radiator get hot during the heat up?
if not then it the pump
if the radiator get hot then it sounds like the high limit stat

john the plumber, December 2008