Really appreciate you responding so promptly Seco but which coloured cable goes where ? i.e. does the grey cable go in terminal 4 etc. Sorry this has turned into such a nightmare
Hi,
Needed to retile kitchen and took controller off wall, thought I had drawn correctly existing wiring but now heating works when hot water selected and "wiring centre/junction box" mini internal fuse blows if I select heating. To get hot water I have to switch room-stat to mid-way and vice...