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.

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Owner’s manual

Error Codes

Model diagram and schematic

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ALL PARTS

Showing 10 of 48 parts |

Garage Door Opener Safety Sensor Kit 41A5034

#10

Installation parts diagram

Garage door opener safety sensor kit

Part #41A5034

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

Rail assembly diagram

Garage door opener drive belt

Part #41A5250

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

Rail assembly diagram

Master link

Part #4A1008

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

Installation parts diagram

Garage door opener wall control

Part #41C472-7

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

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

Motor unit assembly diagram

Garage door opener motor

Part #41D794

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

Garage Door Opener Safety Sensor Bracket, 2-pack 41A5266-1

#13

Installation parts diagram

Garage door opener safety sensor bracket, 2-pack

Part #41A5266-1

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

#NI05

All parts diagram

Owner's manual-spanish

Part #114A3352SP

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

Motor unit assembly diagram

Garage door opener belt cap and sprocket

Part #41C76

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

Accessories diagram

10 foot (3 m) rail extension:

Part #8810CB

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.

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Why does my garage door opener open and close by itself?

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

What preventive maintenance does my garage door opener need?

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

Why does my garage door opener reverse on its own?

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

Why won't my garage door opener fully open or close the garage door?

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

Why won't my garage door opener open the garage door?

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

Why is my garage door opener noisy?

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

Why doesn't my garage door opener work?

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

Why does my garage door opener work intermittently?

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.

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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.

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier....

Top questions about Sears and Sears PartsDirect

How to open a garage door with an opener manually

Learn how to open a garage door manually if power to your garage door opener fails....

Model # 248754 Official Chamberlain garage door opener

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Most common symptoms to help you fix your garage door openers

Why does my garage door opener open and close by itself?

What preventive maintenance does my garage door opener need?

Why does my garage door opener reverse on its own?

Why won't my garage door opener fully open or close the garage door?

Why won't my garage door opener open the garage door?

Why is my garage door opener noisy?

Why doesn't my garage door opener work?

Why does my garage door opener work intermittently?

Most common repair guides to help fix your garage door openers

How to replace a chain-drive garage door opener motor

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

How to replace a chain-drive garage door opener drive and worm gears

Effective articles & videos to help repair your garage door openers

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Top questions about Sears and Sears PartsDirect

How to open a garage door with an opener manually

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