Since I think this fixture is new in the 2016s it probably has not made it to any of the wiring diagrams. A call to Thor is probably your best bet. I don't think that there is an access panel to get behind it. The thermostat just has a hole in the wall that the wires come thru. There must be someway to pull it from the wall to see the wires that feed it and to test if they have any power coming to them - or to see if there are any wires at all.
__________________
|