XiD-C Box Has no Light to Indicate on or off

Technician recently installed a new XiD-C box on a secondary TV.  Seems to be working in all ways TV and on demand.   However there is no blue light indicating that it is on.  I can turn it on and off with the button on top of the box but no light.

May be an unrelated issue but I have gotten a box overheating message on the TV screen even thought the box is sitting on a wide open shelf away from the TV and any other source of heat.