Unplug the power cord to your garage door opener.
Replacing a garage door extension spring.
With a second set of hands to help you along manually lift the door off the ground and lock.
If you have an older opener you may need to remove a fuse or flip.
Disengage the broken extension spring one end at a time.
The new spring s diameter length and wire size or gauge must be the same as your old spring.
At the far end of the door rail.
Open the garage door to remove all spring tension and clamp it in place.
The easiest way to do this is to take the broken spring to a local garage door dealer or home improvement center so they can help you find an exact match.
How to replace a garage door extension spring step 1.
Get it right the first time.
Once in place disconnect the.
The following steps will walk you through how to replace an extension garage door spring.
Some garage door openers have a neutral position for the trolley disconnect.