Connect Power; Install The Battery Backup (Optional Accessory) - LiftMaster LM3800W Manual Del Usuario

18

Connect Power

To avoid installation difficulties, do not run the garage door opener at this time.
To reduce the risk of electric shock, your garage door opener has a grounding type plug. This plug will only fit into a grounding type outlet. If the plug
doesn't fit into the outlet you have, contact a qualified electrician to install the proper outlet.
There is only one option for connecting power:
TYPICAL WIRING
Plug in the garage door opener into a grounded outlet.
19 Install the Battery Backup
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 485EU for replacement battery. DO NOT dispose of battery in fire. Battery
may explode. Check with local codes for disposal instructions.
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 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 (B)
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.
(Optional accessory)
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