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

1/3hp craftsman gdo problem help help

Posted by hubmachine (My Page) on
Mon, Dec 1, 08 at 21:12

serial #139.663953
This am wife went out and opened the door. the chain came off track.
This evening when i got home from work I reinstalled the chain.
I then engaged the door with the chain. I pressed both buttons on the wall mounted switch. The door closed.
I hit both switches again and nothing happened. I did this a few times and still nothing. I then pulled on the cord which disconnects the door from the chain and it popped like it was under pressure. I then hit both buttons on the wall mount and the motor just hummed. It eventually stopped. I pressed the buttons again and the motor began to hum again but not move.
Does anyone have anything to suggest? Any help woould be most appreciated.
Many thanks

Follow-Up Postings:

RE: 1/3hp craftsman gdo problem help help

Sounds like your chain and the limits are out of sync. Take the chain off the sprocket over the motor and run the opener until the sprocket has turned counterclockwise and stopped.
With the door open reinstall the chain. Everything should be back in sync but you may have to tweak the up and down limits a bit.

The chain coming off the sprocket is not a normal problem by any means. It is usually caused by the bearings around the shaft the sprocket is attached too being bad. You have a really old opener and now may be the time to upgrade to the safer models.

 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