Hi folks, I'm looking for a bit of help please. I have 2 standard indoor occupancy sensors I installed on a network but i can't get the led to light up. Toolkit acknowledges that they are on the network and there are 2 switches after the sensors on the network are working. The led on one did come on for a wee bit but then went off. I have tested a multi sensor in their place and it works no problem. Both sensors are from the same batch......do you think they are fault sensors or is there any other reason for it behaving this way???? thanx in advance.