Hi
I have a Drayton motorised 3 port valve which is playing up.
I can get HW & CH but not together. The valve appears not to settle in the mid position.
In fact, if I have the CH on and want HW I have to take the CH to an off position on the programmer and then cycle the HW program through the various programmer positions to an on position to get the valve itself to move to the HW on position. Same situation arises to get to CH from a HW on position.
Hope this makes sense. Seams bizarre to me as the valve is clearly working once I can get it to respond to the programmer. I just need it to heat HW & CH together and move from CH to HW or vice versa when called for automatically.
I have a Drayton motorised 3 port valve which is playing up.
I can get HW & CH but not together. The valve appears not to settle in the mid position.
In fact, if I have the CH on and want HW I have to take the CH to an off position on the programmer and then cycle the HW program through the various programmer positions to an on position to get the valve itself to move to the HW on position. Same situation arises to get to CH from a HW on position.
Hope this makes sense. Seams bizarre to me as the valve is clearly working once I can get it to respond to the programmer. I just need it to heat HW & CH together and move from CH to HW or vice versa when called for automatically.