Homeowners Garage Door Maintenance : Aluminum Garage Door 8850
3.) Balance Testing
First, release the opening. You do this by pulling the red handle at the end of the red wire. Once disconnected, open the door about half way. If the garage door starts to close itself, then the garage door is not balanced properly. The spring on the door needs to be adjusted again. We recommend contacting a certified professional to repair or replace your springs.
Your garage opener should work harder if the door is not properly balanced. This will eventually shorten the life of the door.
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