Return to the Garages/Workshops Forum | Post a Follow-Up

 o
Sears Craftsman garage door opener

Posted by dnflyer (My Page) on
Fri, Oct 3, 08 at 23:24

It's worked fine for a long time, but tonight the chain slipped off. I managed to get the chain reattached and in what I think is the proper position, and tightened it a bit to reduce the sag. The door is down and the latch is sitting right behind the sleeve (correct terms??) waiting to slide into the locked position when the door raises.
However....

When I activate with the remote, the motor pushes the door further closed, bowing the track quite a bit....then it backs up about a foot before shutting down. It almost seems that it's running backwards and shutting off when it reaches the pressure limit, however the chain is on the proper side.

I do have the book....I cannot figure out where it is at the moment. This is 15 year-old 1/2 HP unit.

Any ideas would be appreciated, at the door opener is also the only real means of locking the door closed.

Thanks!


Follow-Up Postings:

 o
RE: Sears Craftsman garage door opener

Loosen the chain until you can remove it from the sprocket atop the motor. Leave the chain connected normally to the door. With the door open and the chain still off, run the motor until the sprocket turns counterclockwise and stops. Then replace the chain. This will get everything back into sync. You may have to tweak the up and down limit controls located on the side of the motor unit. If you run the motor too much the thermal switch will turn it off until it cools. Usually takes about 15 minutes. If you have any problems post back.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Garages/Workshops Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here