Replacement Part List

Users Guide
with specialty instructions
Belt Drive Garage Door Openers
B353 B353C B550 B550C B750
B750C B751C B970 B970C
B1381 B1381C B373
FOR RESIDENTIAL USE ONLY
PRE-PROGRAMMED REMOTE CONTROL
INCLUDED
Register your garage door opener to receive
updates and offers from Chamberlain
1. Take a photo of the camera icon including the
points ( ).
2. Send it in by texting the photo to 71403 (US)
or visit chamberlain.registria.com (Global)
Smart Garage Opener
l Please read this manual and the enclosed safety materials
carefully!
l Fasten the manual near the garage door after installation.
l The door WILL NOT CLOSE unless the Protector System® is
connected and properly aligned.
l Periodic checks of the garage door opener are required to
ensure safe operation.
l The model number label is located on the left side panel or back
panel of your garage door opener.
l This garage door opener is compatible with myQ
®
and
Security+2. accessories.
l DO NOT install on a one-piece door if using devices or features
providing unattended close. Unattended devices and features are
to be used ONLY with sectional doors.
Contents
Preparation 2
myQ® App Control 3
Installation 4
Electrical and Wiring 10
Install the Protector System 10
Adjustments 13
Operation 14
Important Safety Instructions 14
Using your Garage Door Opener 14
Battery Backup 15
Smart Control Panel® 16
Motion Detecting Control Panel 17
Multi-Function Control Panel 18
Push Button Door Control 18
Remote Control and Keyless Entry 19
HomeLink® 19
Erase the Memory 20
To Open the Door Manually 20
Maintenance 21
Troubleshooting 22
Warranty 24
Repair Parts 27
Rail Assembly Parts 27
Installation Parts 28
Models B353 and B353C 29
Models B550 and B550C 30
Models B750 B750C and B751C 31
Models B970 and B970C 32
Models B1381 and B1381C 33
Model B373 34
Go to chamberlain.com/belt-install to see installation videos.
www.chamberlain.com

Summary of content (72 pages)