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Contents
Preparation ......................................2-5
Assembly .........................................6-9
Installation ..................................10-27
Install the Door Control ............20-21
Install the Protector System® ....22-25
Power
......................................26-27
Adjustments .................................28-30
Battery Backup ..................................31
MyQ® Smartphone Control .................32
Operation .....................................33-37
Using your Garage Door Opener .....34
To Open the Door Manually ...........34
Smart Control Panel® ...............35-36
Remote Control and
Keyless Entry ................................36
Homelink®
...................................36
To Erase the Memory .....................37
Maintenance .....................................38
Troubleshooting ...........................39-40
Accessories ........................................41
Warranty ...........................................42
Repair Parts .................................43-44
Owner’s Manual
C870
Chain Drive
Garage Door Opener
FOR RESIDENTIAL USE ONLY
PRE-PROGRAMMED REMOTE CONTROL
INCLUDED
www.chamberlain.com
www.mychamberlain.com
• Please read this manual and the enclosed safety materials carefully!
• Fasten the manual near the garage door after installation.
• The door WILL NOT CLOSE unless the Protector System
®
is connected
and properly aligned.
• Periodic checks of the garage door opener are required to ensure
safe operation.
• The model number label is located on the front panel of your garage
door opener.
• This garage door opener is compatible with MyQ® and
S
b
2.0® accessories.
• 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.
Smart Garage Opener
