They are all powered up and the lights fade up nicely...not sure what you could be doing wrong.... the sensor is on the side, and usually - as you move the magnet about, the LED will illuminate when you find it... then you hold it in place.
Stupid question... but there is power to the unit right ?
the magnet location is poorly marked anyway - so its just as hard in daylight if thats any consolation
Carl,There is another method to entering setup mode, if you take the lid off were the 240v in enters, there are a couple of jumper pins, short these out for a few secs and your in. Not as easy as the magnet but a sure fire way of entering setup mode.
Carl,The jumper pins are under the "Load" end small screw piece, it is actually labelled up on the sticker next to where it says magnet etc.
Carried out quite a few installs with various rako units etc.
If you have non dimmable ballasts on your flourys you would need a straight switching unit ie. RDS800C, this is a pure relay capable of switching upto 800Watts.
If your flourys ballasts are dimmable you need 1 of three different control methods, 0-10 v, Digital serial interface or Dali. these can only be used with dimable ballasts!!
Think you need to check the specific types of units you have purchased.
I am just Reading the spec sheet(http://www.setsquare.co.uk/files/RDF - USER.pdf), squinting as it's on the iPhone, and is says "RDF Series" it can be used for dimming 0-10v flo lighting and non dimmable loads. It is strange but one of the 5 is switching the light load on, but four are not lighting at all. I checked with my meter and 240 is going in but not getting switched out????I dont think the RDF800 can be used as a standard relay type switch, its purely designed for dimming of analogue 1-10v fluorescents.
unless i am missing something i thinkyou have been misled/missold??