I have a Worcester Bosch, Greenstar Heatslave 18/25 oil combi boiler. It is around 6 years old. So far it has had 4 new flowswitches! They seem to eventually stick open causing the boiler to think there is a HW demand and then the overheat stat operates.
It is a soft water area; there is a magnetic scale filter fitted on the inlet and a one way check valve on the HW outlet. There are no leaks or dripping taps. It’s been ok for a few months but is getting expensive. They are all genuine parts. Anyone come across this before?
Graham.
It is a soft water area; there is a magnetic scale filter fitted on the inlet and a one way check valve on the HW outlet. There are no leaks or dripping taps. It’s been ok for a few months but is getting expensive. They are all genuine parts. Anyone come across this before?
Graham.
