Please help. This boiler has been stood for a couple of years but was working perfectly before being removed. Now it has been refitted fan works but when thermostat knob turned on it will not ignite. It's been fully cleaned and new wiring added from timer.
Is there a spark at the pilot, if not take off red tube to Air pressure switch and blow gently down tube into APS. Is the fan hunting going off & on if so it maybe Ignition box
Ole Git
February 2009
Is the fan making the pressure switch.This sends power to the PCB which in turn powers the ignition sequence.
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