geoff wrote:
Do you have a wire trapped somewhere?

Is there water damage on the board?

What happens if you disconnect the pump?

No obvious signs of damage on the PCB, no arcing, burns or any water damage
ceratinly. If I disconnect the Pump supply from the PCB (fan is now
reconnected) I no longer get any blown fuses, Boiler ON light illuminates
but I have left the thermostat OFF.

Appreciate your help here, I assume this means the fault points towards the
pump and I should be looking in the airing cupboard now?

--
Darren Griffin
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