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Mend Potterton Suprima 50L Boiler PCB

heating?

potterton suprima 50l when I ask for hot water the heating comes on? the boiler ignites and seems fine,tried turning down the thermostat on the wall but heating still getting hot aswell as water anyone help? when all is turned off the boiler light is constantly orange? no red cut out light to indicate a pcb fault?

crooky
August 2013

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