Good Evening, I am attempting to fit a two gang crabree series 4000 remote switch supplied by Myson as well as cable to my existing Kickspace 500 Duo, heater which is at feet height, I have followed all instructions but it will not work. The instruction is to remove Yellow, Red, and brown wires from rocker switch mounted on the unit, and replace with supplied cable with like for like, so far so good. The switch end wiring which has two off, L1 L2 and L3 with the the L1's factory linked, it then shows the. brown wire (live) going to L2 top the red going to L2 bottom and Yellow going to L3,bottom but this does not work, could I have some help please , one question would be are these wiring arrangement correct and can it work with no connection going to the L1's