I have a boiler that keeps switching on and off even though there is no demand.
Both the hot water and the CH are timed off (Tempus 6 programmer shows no lights) but the boiler insists on coming on all the time. The temp indicator is permanently around 85 deg- drops to around 75ish and then the boiler starts runs and then shuts down.
This leaves continuously sounds like the water is simmering in the pipes between the valve and the boiler. there is a small (15mm)run around before the two valves.
The system has 2 valves - not a 3 way.
Any ideas please as my gas bill is enormous!!!!
Both the hot water and the CH are timed off (Tempus 6 programmer shows no lights) but the boiler insists on coming on all the time. The temp indicator is permanently around 85 deg- drops to around 75ish and then the boiler starts runs and then shuts down.
This leaves continuously sounds like the water is simmering in the pipes between the valve and the boiler. there is a small (15mm)run around before the two valves.
The system has 2 valves - not a 3 way.
Any ideas please as my gas bill is enormous!!!!