It is raining pretty hard today in Atlanta. My wife left the door garage opened for about 30 min. She later tried to close it and it would not close. I used a hair dryer around the sensor for 1-2 minutes to clear up any moisture or possibly air drops that may have gone inside the sensor. Surprisingly, the red light came back up steadily! Thanks for the tip that someone left on the web site to use a hair dryer in wet or moisture condition. It worked for me!

Ayman