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