Hi. Is it possible for a motorised 3 way valve to not be opening and closing correctly even if you can hear the motor operate when required? Every year when I turn the heating right down for the summer and then back up for the winter I seem to have an issue with my condensing boiler and was wondering if the 3 way valve is the cause. The issue (I think) seems to be water flow to the boiler in that after about 15 mins of running from cold, the boiler cuts out even if there is still a demand for it. There is also a lot of noise created around the pump area of the boiler which sounds like the pump operating but not enough water reaching it if that makes sense. After a week or so of this happening things seem to settle down and we are then up and running for the winter/ summer, but then have to go through the same problem in 6 months time. It's becoming a pain. Any suggestions would be gratefully received.
Many thanks. Pete.
Many thanks. Pete.