My garage door will begin to close and will close about 3/4 of the way and then pop back up. It started a few months ago but it only occurred on rainy days, but now it's doing it daily for the past week. When this happens, I can walk up to the back of it and place my hand on the grooves and guide it down and it will close. I thought the sensors may have some dust or leaves affecting them, but they don't.
I've checked to see if there is anything that could possibly be interfering with the sensors but there's not. Now it's only closing fully without assistance about 20% of the time. I'm out of ideas. Any help or suggestions would be appreciated!