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Model # 1245R Official Chamberlain garage door opener
Here are the diagrams and repair parts for Official Chamberlain 1245R 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 for1245R Garage Door Opener
- #15
Motor unit assembly diagram
Garage door opener rpm sensor assemblyPart #41C4398A
The manufacturer no longer makes this part, and there's no substitute part
- #3
Motor unit assembly diagram
Garage door opener drive and worm gear kitPart #41A2817
The manufacturer no longer makes this part, and there's no substitute part
- #14
Motor unit assembly diagram
Garage door opener limit switchPart #41D3452
The manufacturer no longer makes this part, and there's no substitute part
- #17
Motor unit assembly diagram
Garage door opener motor shaft bearing kitPart #41A2826
The manufacturer no longer makes this part, and there's no substitute part
- #2A
Motor unit assembly diagram
Garage door opener gear and sprocket assemblyPart #41C4220A
The manufacturer no longer makes this part, and there's no substitute part
- #9
Installation parts diagram
Garage door opener safety sensor kitPart #41A5034
The manufacturer no longer makes this part, and there's no substitute part
- #2
Motor unit assembly diagram
Gear and sprocket assembly (1256r, 1246r)Part #41C4206A
The manufacturer no longer makes this part, and there's no substitute part
- #8
Accessories diagram
Garage door monitor sensorPart #916LM
The manufacturer no longer makes this part, and there's no substitute part
- #7
Accessories diagram
Garage door monitorPart #915LM
The manufacturer no longer makes this part, and there's no substitute part
- #9
Accessories diagram
Remote light controlPart #995LM
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 garage door opener battery
The garage door won't move during a power outage if the battery is dead. Here’s how to replace it.…
Repair difficulty
Time required
15 minutes or less
How to replace a garage door opener wall control
If you push the control button on the wall control and the garage door doesn’t move, the control is defective. Replace i…
Repair difficulty
Time required
15 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
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.
Find out what’s wrong with your appliance by following a circuit.…
This video covers 5 different wall control units and universal remotes.…
You can repair your garage door opener yourself. We show you how.…
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