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

**don help** garage door issue (liftmaster)

Posted by ynottony (My Page) on
Mon, Nov 26, 07 at 13:46

My door suddenly quit a couple inches from open position, Now it rams against stop bolt even after giving slack and readjusting limit contacts. I removed the chain and it only rotates in one position only. The up limit contact has no effect on the travel as it will ram against stop bolt. When I ran without chain I removed the terminal from the down limit contact and it stops the motor every time, but when I remove the terminal from the up limit contact the motor still runs and will not reverse direction no matter what. I removed the gear from the traveling limit switch when doing these tests so not to strip. Is this the logic board cause I am out of ideas.

Follow-Up Postings:

RE: **don help** garage door issue (liftmaster)

I have had one case of this happening and it turned out to be bad contacts on the limit switch assemble. I used a piece of emery cloth to clean both contacts and it worked. Make sure the lead to the up contact is good. I really suspect your logic board though.

RE: **don help** garage door issue (liftmaster)

Thank you for your help Don, I received the logic board and after adjustments the door works fine.

 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