Great thanks, and the PCB is what controls that? Was hoping it would be something simple like a switch.. Maybe the PCB has been put in wrong from the start.
the fault you have is most commonly the PCB but your boiler does have a HW flow switch which tells the boiler to stop the pump while CH is also running , but if you switch the CH to off then open a HW tap and the boiler fires then the switch is OK, if the boiler doesnt fire then likely to be the switch
Yeah that's what I was thinking, my mams getting in touch with the guy who put it in.. Not Impressed with his work though 2 screws were rounded off so he's either used the wrong sized bit of went OTT with the drill bit.
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