Potterton gold combi pressure increases and heating faulty Birmingham boiler repair and diagnostic..

[@CommercialGasEngineerVideos]

Thanks for your time and effort

[@Han-es8qu]

The pressure gauge was jumpy, means blocked primary heat exchanger is scaled.

[@wackey3455]

Your a genius ❤

[@paulsmith2931]

Nothing ever goes wrong with these, except the diverter valve and the plate 😂

[@marshall255]

Electrical safe isolation 🫥 😂