A bit of assistance if possible please. I have a Halstead Ace combi boiler and I'm fitting a Horstmann HRFS1 Wireless thermostate. On the Halstead I have a link which is from the 230v live feed (L1) and goes to (l3) which feeds the mechanical timer this is to be used for a thermostate. I was told by Horstmann to put the live side (L1) from the boiler to the Live on the receiver (with the jumper) as per page 9 and the Neutral back to the boiler (L3). Done this and the wireless controller is NOT controlling (turning the boiler on / off). the remote controller is operating as the manual says but I have no green light on the receiver. Any suggestions please have I wired it correctly??