Liftmaster problem

skip50February 6, 2009

I need some help on troubleshooting my liftmaster door opener. When you try to open the door the motor hums for a short bit and does not open the door. I pressed the learn button and the the light comes on for a short while and goes out. Not sure if this is a logic board issue or safety sensor issue. Any ideas? Your help is much appreciated.


Thank you for reporting this comment. Undo

Take a look at your door springs. Sounds like one might be broken. Also remove the cover and look at the drive gear. It is white nylon just in front of the motor and may be stripped.

    Bookmark   February 7, 2009 at 3:36PM
Thank you for reporting this comment. Undo

Thanks Don, I will check both.

    Bookmark   February 8, 2009 at 2:09PM
Thank you for reporting this comment. Undo

Don 1, The door springs look fine however the large white nylon gear is stripped. In the bottom of the case was a lot of white pieces and dust. Is this something a basic handyman like myself can replace or do I need to get a pro involved?
Many thanks,

    Bookmark   February 8, 2009 at 2:43PM
Thank you for reporting this comment. Undo

If you are a handyman you shouldn't have any problems doing this. The parts come with instructions. The part number is 41A2817 and is available at any good door service company.

    Bookmark   February 9, 2009 at 9:39AM
Sign Up to comment
More Discussions
Keyless lock for manual garage door?
I have a two car garage with separate manual lift garage...
Light on my garage door opener won't turn off
The light on my old Genie Medallion Series garage door...
Garage door won't open - even manually
Our garage door won�t open - the motor works,...
Need Help with My SnowBlower
I just recently bought a Craftsman 24" snow thrower,...
Craftsman 3/4 HP Garage Door Opener w/Extension
I just installed a 9.18450 opener with a track extension...
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™