While you wait for answers, we may have found some information which could help you.
Click here for Light Light KingfisherCentral heating radiator doesn't gets hot sometimes and sometimes does?
Where can I get instructions for potterton Kingfisher II?
Potterton kingfisher 2ignition problem?
My radiators will not go off?
Pottertton Kingfisher Boiler Overheating ?
potterton kingfisher boiler central heating not turning on?