Chamberlain C870C Owner's Manual

Smart Garage Opener
• 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
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
is connected
®
Security+ 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.
Owner's Manual
C870C
Chain Drive
Garage Door Opener
FOR RESIDENTIAL USE ONLY
PRE-PROGRAMMED REMOTE CONTROL
INCLUDED
TO WATCH VIDEOS GO TO:
tinyurl.com/lgh5x3h
Contents
Preparation ......................................2-5
Assembly .........................................6-9
Installation .................................. 10-27
Install the Door Control ............ 20-21
Install the Protector System® .... 22-25
Connect 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
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