Re: Garage door trainwreck
To expand on point 3: there will be some lift wires running from the bottom corners of the door up to some pulleys on the shaft with the torsion springs. Never EVER release these wires without first relieving the springs.
Adjusting the springs (tightening or relieving) is a job best left to people trained and insured for that kind of work. For the inexperienced, it can be a very dangerous, even deadly, proposition. You can do it yourself, but don't say you weren't warned.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.