Boiler not igniting
- Thread starter pnorris
- Start date
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I am trying to determine what the sequence of events are when the boiler switches on. in other words what would prevent the spark being initiated? I know there is mains power being applied as the pump and fan are working and the control panel lights are on. I have a suspicion that the spark generation circuit on the PCB is faulty, but before buying a new PCB I want to eliminate whether there could be some other cause for the boiler not firing up.
Im not familier with your boiler but any fan run should be followed with detection of a fan running/clear flue usually wit a air pressure switch that will pick +up the pressure diff accross flue. check all the flue is clear and that the fan blades are clear and the gas water heat ex is clear but all this should have been done when you had your boiler serviced.
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