I have been called to look into a DLT after the painters removed it from a wall. When I arrived I found one of the + wires broken off and all labels back to defaults. Also the buttons are not doing the right operations. Eg button 1 is lights on. Button 2 lights off etc. I also have a shutter relay from buttons 7 and 8 for blinds up and down these are working back to front and would not drive partially open or closed!!