Manualshelf

Instructions / Assembly

ManualsBrandsMighty Mule ManualsDoors & Windows3/4 HP DC Smartphone Compatible Garage Door Opener with Built-In LED Lighting and Ultra-Quiet Belt Drive
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35
Number
of Blinks/
Beeps
Condition Possible Causes Possible Solutions
2 Low Battery Battery is low Check that AC power is connected and allow battery to
charge. It will take approximately 10 hours to charge the
battery.
4
No Capacity Battery is no longer holding a charge. Replace battery now.
5
Battery
Shorted
Battery is internally shorted or battery leads
are shorted.
Check battery wires for shorting. If wires are OK,
replace battery now.
Battery Troubleshooting
These conditions occur when battery backup is installed, and the door is stopped in the open position. Feed-
back is given via an audible alarm.
If a battery backup is used, the opener may start moving the door
even with AC power disconnected. Use Caution when servicing.
WARNING
Use caution when installing batteries. Incorrect use can damage
the battery, controller or can cause a  re. Only use recommended
replacement battery, Mighty Mule MMB100, 12 Volt battery.
Unapproved batteries will damage the controller or can cause a
re.
Properly dispose of old batteries.
CAUTION