Nortek Control Mighty Mule MM571W Installation Manual page 53

Audible Feedback
1 beep, pause, 2 beeps, pause, 1
beep, pause, 2 beeps, pause,......
1 beep, pause, 3 beeps, pause, 1
beep, pause, 3 beeps, pause,......
The unit clicks with no arm
movement
Additional information can be found by contacting Nortek Security & Control.
Possible Diagnosis
Reading primary motor short
condition
Reading secondary motor short
condition
Internal motor problem or low
battery
Check/Solution
h Turn the system off and back on.
h Motor leads shorted
h Internal arm problem, or control board problem
h Turn the system off and back on.
h Motor leads shorted
h Internal arm problem, or control board problem
h Internal arm problem
h Check fuses
h Battery harness connections
h Battery under load
h Inadequate charge
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MM571W / MM572W Installation Instructions