Thanks for your reply would that be the valve in the groudfos that sits above the 3 way valve as I removed an inspection screw caught the dirty water and then using an electrical screw driver rotated the spindle in there which rotated freely?
On the plus side the heating is still working fine...
Hi there I did have a trawl through all the older posts before requesting help but was hoping someone might point me in the right direction.
Our heating system is about 11 years old and we have replaced the pcb board and the myson 3 way valve over the years thanks to advice here in the past...
