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How can i sort out an f4 fault on glow worm 18hxi ?

BOILER KEEPS CUTTING OUT AND SHOWING F4 ON THE PANEL CAN I FIX IT ?

ANDY
April 2009
Thats the 'failure to ignite' code - it could be that the boiler is down in pressure or maybe a fault in the PCB. Sometimes turning the boiler off at the mains switch, then turning it back on again stabilises things for a while.

John
April 2009

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