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my boiler wont fire up?

wont fire up on heating and hot water 240v present at fan for a second then 0v is this a pcb i need to replace pump running

rik confused plumber
May 2008
sounds sus like a pcb alrite, make sure to check it at the pcb when fan is disconnected (ie. not a problem with fan motor causing the voltage to drop out) would have a better idea if you told us what boiler?

assume the boiler is locking out? you sure all stats & thermisters are ok, flow swtch is making (not comming out, momenterialy then goin back in) as this is a sign of the pump on its way, or the heat exchanger being partially blocked

try give us a fuller picture of the problem, the devil is in the detail

T
May 2008

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