I installed a Harbor Breeze wall remote some 6 months ago, model #UC-9050T. It also came with a separate hand held remote. Both units worked fine until one day the wall unit stopped working. None of the buttons work nor does the small red light turn on. The lower on/off switch still works and can shut off power after I use the hand remote to turn on either fan or light. I undid all the wiring connections on the wall unit and redid them - nothing has changed. Perhaps the unit is just broken/faulty?