What does red light on garage door opener mean?
What does red light on garage door opener mean? Green lights mean the sensors are working, while red lights indicate the sensors are not aligned. If you see red lights, try inspecting the bracket or tightening a screw on the blinking sensor. The sensor lenses can fail to operate when dirt or spiderwebs block their view of the garage door opening. Why does my garage door opener light flash? One flash indicates that your safety sensor wire may be open, broken or disconnected. If your opener flashes twice, then your sensor wire is either shorted or the black and white...