Model #2040L Official Genie ac belt drive garage door opener
Here are the diagrams and repair parts for Genie 2040L ac belt drive garage door opener, as well as links to manuals and error code tables, if available.
There are a couple of ways to find the part or diagram you need:
- Click a diagram to see the parts shown on that diagram.
- In the search box below, enter all or part of the part number or the part’s name.
Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.
We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.
For DIY troubleshooting advice and repair guides, visit our repair help section.
Showing 10 of 78 parts
Garage door opener light lens
Part #35682A
The manufacturer no longer makes this part, and there's no substitute part
#NI01
All parts Diagram
Rail & tro
Part #35994R
The manufacturer no longer makes this part, and there's no substitute part
Holder & c
Part #36052R
The manufacturer no longer makes this part, and there's no substitute part
Garage door opener light socket
Part #36043R
The manufacturer no longer makes this part, and there's no substitute part
#NI02
All parts Diagram
Mounting h
Part #35995R
The manufacturer no longer makes this part, and there's no substitute part
Capacitor
Part #36057A
The manufacturer no longer makes this part, and there's no substitute part
Antenna kit
Part #108035.0007
The manufacturer no longer makes this part, and there's no substitute part
Garage door opener belt idler pulley
Part #36048R
The manufacturer no longer makes this part, and there's no substitute part
Garage door opener sprocket
Part #36047A
The manufacturer no longer makes this part, and there's no substitute part
Cover assembly
Part #36055R
The manufacturer no longer makes this part, and there's no substitute part
Symptoms common to all garage door openers
Repair guides common to all garage door openers

Learn how to replace the gear and sprocket assembly on your garage door opener if the drive motor runs but the door won't move.

The logic board is the brains of the garage door opener. If the remote doesn't work or the door doesn't open and close properly, the logic board could be the problem. This repair guide shows you how to fix it yourself.

If your garage door won’t move, the chain and cable assembly on your garage door opener could be broken. Follow these step-by-step instructions to replace it.
Articles and videos common to all garage door openers
Use the advice and tips in these articles and videos to get the most out of your garage door opener.

Get advice on simple DIY fixes for appliances that you can safely do on your own.

Learn how to check and fix safety sensor and wiring problems.

If your remotes don't work, you might need to disable the lock feature, eliminate RF interference or check the batteries.