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Mend Icos HE18 Boiler Heating System

the standby light is on but the boiler refuses to fire when turned on?

Boiler type : Icos HE18
The standby light is on but the boiler refuses to fire when switched on. What can be done to fire on the boiler?

Ramnik
July 2009
IcosIcos HE18Heating, Home Heating SystemsBoiler Heating System
you can try linking out the pressure switch if that doesnt work then you may need a new pcb

ellie
July 2009

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Icos HE18 Boiler Not Firing - Help & Fixes