Mighty Mule MM571W Installation Manual page 46

Audible Feedback
1 Beep, pause, 2 beeps when
attempting to activate the unit.
1 Beep, pause, 3 beeps when
attempting to activate the unit.
The unit clicks with no arm
movement
Additional information can be found by contacting Nortek Security and Control.
30
MM571W / MM572W Installation Instructions
Possible Diagnosis
Reading primary motor short
condition
Reading secondary motor short
condition
Open motor circuit
Check/Solution
h Turn the system off and back on.
h Motor leads shorted
h Internal arm problem/board
h Turn the system off and back on.
h Motor leads shorted
h Internal arm problem/board
h Internal arm problem