I understand that you want the motorized opener to open the door a few more inches than it is currently. Yes, pull the release and open the door by hand. Does it actually go up further when you open it manually? If so, and maybe regardless, you should be able to adjust the automatic opener such that it will open it "all the way." I serioulsy doubt you have a spring issuel. To find out how to get the auto to open further, search the door opener manual. Don't have that? Google the brand and model and find a pdf version online. I have three overhead doors on my shop. The manual door doesn't open enough to get my center console boat in. I have to open it and then pull it further with a rope, and secure the rope by hook to a metal beam. There just wasn't a way to get it to go that last 4 inches (by springs alone) without the automatic opener.