Craftsman
Garage Door Opener

Model # 13953662SRT2 Official Craftsman garage door opener

Here are the diagrams and repair parts for Official Craftsman 13953662SRT2 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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Garage Door Opener Drive And Worm Gear Kit (replaces 3002375, 65409) 41A2817
#3

Opener assembly diagram

Garage door opener drive and worm gear kit (replaces 3002375, 65409)

Part #41A2817

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

Garage Door Opener Rpm Sensor Assembly 41C4398A
#17

Opener assembly diagram

Garage door opener rpm sensor assembly

Part #41C4398A

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

3-function Remote Control 139.53680
#7

Accessories diagram

3-function remote control

Part #139.53680

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

Master Link 1A995
#1

Rail assembly diagram

Master link

Part #1A995

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

Lens 108D48-2
#9

Opener assembly diagram

Lens

Part #108D48-2

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

Garage Door Opener Limit Switch 41D3452
#16

Opener assembly diagram

Garage door opener limit switch

Part #41D3452

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

Garage Door Opener Interrupter Cup 41A2822A
#19

Opener assembly diagram

Garage door opener interrupter cup

Part #41A2822A

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

T-rail 1B3117
#3

Rail assembly diagram

T-rail

Part #1B3117

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

Garage Door Opener Helical Gear 41A2818
#15

Opener assembly diagram

Garage door opener helical gear

Part #41A2818

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

Battery Cover 31B430
#6

Installation parts diagram

Battery cover

Part #31B430

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.

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

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

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

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

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

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: 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 RPM sensor

How to replace a chain-drive garage door opener RPM sensor

Learn how to replace the RPM sensor if the door only moves 6 to 8 inches at a time and the LED light flashes 5 times. …

Repair difficulty
Time required
 60 minutes or less
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 drive belt

How to replace a garage door opener drive belt

A damaged or broken belt on your garage door opener could be the reason it won’t move the door. Here’s how to fix it.…

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…