Thanks for the reply,
I've not clipped anything because I'm still trying to establish which is meant to go where. Didn't want to clip it and then have to unclip when I already know the wiring is incorrect.
I don't know how it was previously hence why I'm asking if anyone knows the correct...
Had to move my programmer but now my hot water is working but not my central heating. I think the wiring is set up incorrectly.
Can anyone help with explaining the correct set up? I've attached a photo of how it is at the moment
Thanks