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Mend Potterton Envoy 40 Home Heating Systems

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Mend Potterton Envoy 40 Boiler Fault Code PCB

potterton envoy 40 fault code P is it a PCB fault?

had a new gas valve fitted to a potterton envoy 40 boiler it ran for a few days but now has a fault code P and will not reset

terry thompson
January 2009
installation manual says wiring fault, live on neutral connection.

andy bishop owner of manual
April 2009

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