Genie
Garage Door Opener

Model # 2020L Official Genie ac chain drive garage door opener

Here are the diagrams and repair parts for Official Genie 2020L ac chain drive garage door opener, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 143 parts  |

Garage Door Opener Screw 5973Q04
Garage door opener screw

Part #5973Q04

The manufacturer no longer makes this part, and there's no substitute part

Mtrmnt Bkt 33323A

#NI09

All parts diagram

Mtrmnt bkt

Part #33323A

The manufacturer no longer makes this part, and there's no substitute part

Garage Door Opener Screw 8706H04
Garage door opener screw

Part #8706H04

The manufacturer no longer makes this part, and there's no substitute part

Garage Door Opener Bolt 33760A04
Garage door opener bolt

Part #33760A04

The manufacturer no longer makes this part, and there's no substitute part

Garage Door Opener Screw 605879.0001
Garage door opener screw

Part #605879.0001

The manufacturer no longer makes this part, and there's no substitute part

Stripper 33352A

#NI02

All parts diagram

Stripper

Part #33352A

The manufacturer no longer makes this part, and there's no substitute part

Garage Door Opener Bolt 080105.0506
Garage door opener bolt

Part #080105.0506

The manufacturer no longer makes this part, and there's no substitute part

Garage Door Opener Worm Gear 33355A
#24

Head diagram

Garage door opener worm gear

Part #33355A

The manufacturer no longer makes this part, and there's no substitute part

Garage Door Opener Cotter Pin 34542A
Garage door opener cotter pin

Part #34542A

The manufacturer no longer makes this part, and there's no substitute part

Garage Door Opener Screw 28043A04
#17

Head diagram

Garage door opener screw

Part #28043A04

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your garage door openers

Choose a symptom to see related garage door opener repairs.

Main causes: garage door opener misaligned, travel limits need adjustment, bad travel limit switches, faulty logic contr…

Main causes: garage door locked, damaged garage door tracks, up-force setting needs adjustment, RPM sensor failure, bad …

Main causes: safety sensor beams blocked, safety sensors not aligned, downforce setting needs adjustment, damaged garage…

Things to do: check garage door travel, tighten brackets and fasteners, test safety sensors, check travel limits and for…

Main causes: radio interference, weak remote batteries, sunlight interference with safety sensor beams, safety sensors n…

Main causes: faulty logic control board, bad RPM sensor, broken gears in the drive system, bad drive motor…

Main causes: neighbor's remote programmed at the same time as yours, faulty wall control wiring, bad wall control unit…

Main causes: loose fasteners, broken brackets, need preventive maintenance, worn drive gears, loose or worn belt, loose …

Most common repair guides to help fix your garage door openers

These step-by-step repair guides will help you safely fix what’s broken on your garage door opener.

How to replace a chain-drive garage door opener gear and sprocket assembly

How to replace a chain-drive garage door opener gear and sprocket assembly

Learn how to replace the gear and sprocket assembly on your garage door opener if the drive motor runs but the door won'…

Repair difficulty
Time required
 60 minutes or less
How to replace a garage door opener logic board

How to replace a garage door opener logic board

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 p…

Repair difficulty
Time required
 60 minutes or less
How to replace a garage door opener drive chain and cable assembly

How to replace a garage door opener drive chain and cable assembly

If your garage door won’t move, the chain and cable assembly on your garage door opener could be broken. Follow these st…

Repair difficulty
Time required
 60 minutes or less

Effective articles & videos to help repair your garage door openers

Use the advice and tips in these articles and videos to get the most out of your garage door opener.

How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

Garage door opener remotes won't work video

Garage door opener remotes won't work video

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

How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…