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Model # 248754 Official Chamberlain garage door opener
Here are the diagrams and repair parts for Official Chamberlain 248754 garage door opener, as well as links to manuals and error code tables, if available.
Owner’s manual
Error CodesBy Schematic
SELECT DIAGRAM
Browse Parts for
248754 Garage Door Opener
#6
Rail assembly diagram
Garage door opener drive belt
Part #41A5250
The manufacturer no longer makes this part, and there's no substitute part
#7
Motor unit assembly diagram
End panel with battery door and screw
Part #41A6231
The manufacturer no longer makes this part, and there's no substitute part
#6
Motor unit assembly diagram
Garage door opener logic board
Part #41DB002-2
The manufacturer no longer makes this part, and there's no substitute part
#1
Installation parts diagram
Garage door opener wall control
Part #41C472-7
The manufacturer no longer makes this part, and there's no substitute part
#2
Motor unit assembly diagram
Garage door opener power cord
Part #41B4245
The manufacturer no longer makes this part, and there's no substitute part
3-button mini remote control
Part #956D
The manufacturer no longer makes this part, and there's no substitute part
#3
Installation parts diagram
Lith battery
Part #10A20
The manufacturer no longer makes this part, and there's no substitute part
#12
Installation parts diagram
Garage door opener curved door arm
Part #178B35
The manufacturer no longer makes this part, and there's no substitute part
#2
Accessories diagram
Outdoor key switch:
Part #760CB
The manufacturer no longer makes this part, and there's no substitute part
#NI03
All parts diagram
Garage door opener hanging bracket
Part #12B776
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: neighbor's remote programmed at the same time as yours, faulty wall control wiring, bad wall control unit…
Things to do: check garage door travel, tighten brackets and fasteners, test safety sensors, check travel limits and for…
Main causes: safety sensor beams blocked, safety sensors not aligned, downforce setting needs adjustment, damaged garage…
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: loose fasteners, broken brackets, need preventive maintenance, worn drive gears, loose or worn belt, loose …
Main causes: faulty logic control board, bad RPM sensor, broken gears in the drive system, bad drive motor…
Main causes: radio interference, weak remote batteries, sunlight interference with safety sensor beams, safety sensors n…
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 motor
Get your garage door moving again by replacing a defective motor in your garage door opener.…
Repair difficulty
Time required
60 minutes or less
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 drive and worm gears
If your garage door won’t move, the drive and worm gears could be broken. This guide will help you replace the gears.…
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.
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Learn how to open a garage door manually if power to your garage door opener fails.…