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Installation
9
Install the Battery Backup
When in Battery Backup mode, myQ Smartphone Control and wireless myQ devices
will be disabled. In battery backup mode, the automatic garage door lock will unlock
when the garage door is opened, and will remain disabled until power is restored.
1.
Unplug the garage door opener.
2.
Use a Phillips head screwdriver to remove the battery cover on the garage door
opener.
3.
Partially insert the battery into the battery compartment with the terminals facing
out.
4.
Connect red (+) and black (-) wires from the garage door opener to the
corresponding terminals on the battery.
5.
Replace the battery cover.
6.
Plug in the garage door opener.
BATTERY STATUS LED
GREEN LED:
All systems are normal.
•
A solid green LED light indicates the battery is fully charged.
•
A flashing green LED indicates the battery is being charged.
ORANGE LED:
The garage door opener has lost power and is in battery backup mode.
•
A solid orange LED with beep, sounding approximately every 2 seconds, indicates
the garage door opener is operating on battery power.
•
A flashing orange LED with beep, sounding every 30 seconds, indicates the battery
is low.
RED LED:
The garage door opener's 12V battery needs to be replaced.
•
A solid red LED with beep, sounding every 30 seconds, indicates the 12V battery will
no longer hold a charge and needs to be replaced. Replace the battery back up to
maintain the battery backup feature.
NOTE: Battery does not have to be fully charged to operate the garage door opener.
Battery Status LED
Red wire (+)
Black wire (-)
19
To reduce the risk of FIRE or INJURY
to persons:
• Disconnect ALL electric and battery
power BEFORE performing ANY
service or maintenance.
• Use ONLY LiftMaster part #485LM for
replacement battery.
• DO NOT dispose of battery in fire.
Battery may explode. Check with local
codes for disposal instructions.
ALWAYS wear protective gloves and
eye protection when changing the
battery or working around the battery
compartment.
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Table of Contents
Troubleshooting
