I purchased a Tado V3+ hot water and the instructions seemed to be simple enough. My current wireless receiver only had 4 wires so what could go wrong. Followed the instructions and after a frustrating day it still does not work. To add to that, the Tado chat page has not answered my initial query after 20 hrs. You can see below the wiring inside the Honeywell reciever, there is also a hot water heater controller on the wall next to it. So far nothing is working, any ideas?