Troubleshooting Guide - Visual Feedback - Mighty Mule MM571W Installation Manual

Troubleshooting Guide - Visual Feedback

If your gate operator does not function properly after it is installed, use this guide before calling the Nortek Security and Control
Service Department.
Visual Feedback
The unit does not seem to turn on
LED 2 (red) 1 blink, pause, 1
blink...
LED 2 (red) 2 blinks, pause, 2
blinks...
LED 2 (red) 3 blinks, pause, 3
blinks...
LED 2 (red) 4 blinks, pause, 4
blinks...
LED 2 (red) 5 blinks, pause, 5
blinks...
LED 2 (red) 6 blinks, pause, 6
blinks...
Charge LED rapidly flashing
Charge LED off
Charge LED Flashing
Possible Diagnosis
Blown fuse(s)
Lack of power
Power switch
Cycle terminal shorted
Safety terminal shorted
Exit terminal shorted
Shadow terminal shorted
Close Edge terminal shorted
Open Edge terminal shorted
Unit does not detect the presence of
a battery
Unit not charging
Battery or Batteries disconnected
Check/Solution
h Check battery harness , ensure the battery is connected red to red
(+) and black to black (-)
h Check both board fuses and harness fuse
h Check the battery voltage
h Check charge source
h Ensure the unit is switched on
Detach any wires connected to this terminal. If the LED clears and
the unit begins to function, check for a defective accessory, triggered
accessory or shorted wiring.
Detach any wires connected to this terminal. If the LED clears and
the unit begins to function, check for a defective accessory, triggered
accessory or shorted wiring.
Detach any wires connected to this terminal. If the LED clears and
the unit begins to function, check for a defective accessory, triggered
accessory or shorted wiring.
Detach any wires connected to this terminal. If the LED clears and
the unit begins to function, check for a defective accessory, triggered
accessory or shorted wiring.
Detach any wires connected to this terminal. If the LED clears and
the unit begins to function, check for a defective accessory, triggered
accessory or shorted wiring.
Detach any wires connected to this terminal. If the LED clears and
the unit begins to function, check for a defective accessory, triggered
accessory or shorted wiring.
h Check battery connections and harness, ensure the battery is
connected red to red (+) and black to black (-)
h Check all fuses
h Battery at full charge
h Top left fuse if blown, check charge source polarity, replace fuse
h Normal systems check, it will come back on momentarily.
h No transformer output, proper output should be 19 Vdc
h Poor or night solar conditions.
h Check circuit breaker or GFI.
h Power at outlet
h Low voltage wire problem from charge source (transformer or
solar panel) to the control board.
h Ensure transformer or solar panel wires are properly connected to
the control board. It is necessary to observe correct polarity.
Connect battery/batteries
MM571W / MM572W Installation Instructions
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