Almost all garage door openers have a bypass switch for situations such as when the power goes out, a motor goes awry, or the remote opener dies. On most garage door openers there is a rope with a handle on the end (usually red). This manual release handle disengages the trolley from the attachment point to the rail. Pulling on this rope will put the garage into manual mode so if the door is up, it might come crashing down. To be safe, always activate the handle when the garage door is closed.
If you find there is damage to a cable or the door opens unevenly, make sure to contact one of our garage door experts in your area. Tension springs and other garage features can be dangerous to work with and doing a DIY project could result in irreversible damage. Our garage door repair professionals have the tools and experience at their disposal to repair your garage opener safely and efficiently.