I've got a 10 year old central heating system (Potterton Prima boiler, Grundfos Super Selectric UPS15-60 pump - all has been fine up until today.
The hot water system is heating up fine but the central heating system is not getting hot. The boiler will run for a little while after cutting out by turning up the thermostat but I suspect it's just heating the hot water even hotter and the heating system isn't taking anything, I've tried bleeding it - all seems fine. Central heating pump failure? How can I check? Any advice appreciated.
The hot water system is heating up fine but the central heating system is not getting hot. The boiler will run for a little while after cutting out by turning up the thermostat but I suspect it's just heating the hot water even hotter and the heating system isn't taking anything, I've tried bleeding it - all seems fine. Central heating pump failure? How can I check? Any advice appreciated.