The opener has a setting that limit the allowable closing force. As the door closes, the springs are expanded which increases the resistance as the door closes. If the opener exceeds the allowable closing force, it will stop closing and back up because it thinks it hit an obstacle.
So the fix for this is to increase the closing force setting. Before you do that, you should certainly make sure the door is properly lubricated and there are no binding rollers or bent rails. Your door opener manual should give explicit instructions for making the various adjustments. If you do not have the manual, look for it online. The make and model number of your opener should be printed on a label located on the closer drive unit.
From: DoIt_Yourself@yahoogroups.com [mailto:DoIt_Yourself@yahoogroups.com] On Behalf Of Frank Ruggiero
Sent: Wednesday, July 03, 2013 7:01 PM
To: DoIt_Yourself@yahoogroups.com
Subject: [DIY] Garage Door Opener
Hi Experts.
I have a garage door issue. The garage door opener will open the garage door. But when it tries to close it, it pushes it about 2 feet and then pulls it back to the open position.
I did check the sensor. I know nothing is blocking it, because the sensor's green light is on. I know when something blocks it, the green light goes off.
So I disconnected the opener in the open position, and manually pushed the door down. It felt kind of difficult to push it along.
I am wondering if, in this case, the track would need to be lubricated, or the wheels on the door need to be lubricated?
If so, what would I use and how would I apply it?
Any ideas are greatly appreciated.
Frank
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