While you wait for answers, we may have found some information which could help you.
Click here for Wrong Potterton BoilerWhere can I get instructions for potterton Kingfisher II?
Potterton kingfisher 0-max knob?
Pilot light won't relight?
how can I get my potterton kingfisher CF 180 to fire up?
Central heating radiator doesn't gets hot sometimes and sometimes does?
Pottertton Kingfisher Boiler Overheating ?