Potterton Perfoma 24. Hot water works fine No heating?
why do I have to pressurising my boiler?
Potterton proforma system boiler 18 he?
pilot light wont ignite?
Is it easy to replace thermostat on potterton profile 80?
potterton boiler keeps closing down?
potterton 16/22 pilot lihght out?
My potterton boiler keeps losing water pressure and condens?
E133?