MM571W / MM572W Installation Instructions
50
Audible Feedback
Possible Diagnosis
Check/Solution
1 beep, pause, 2 beeps, pause, 1
beep, pause, 2 beeps, pause,......
Reading primary motor short
condition
h
Turn the system off and back on.
h
Motor leads shorted
h
Internal arm problem, or control board problem
1 beep, pause, 3 beeps, pause, 1
beep, pause, 3 beeps, pause,......
Reading secondary motor short
condition
h
Turn the system off and back on.
h
Motor leads shorted
h
Internal arm problem, or control board problem
The unit clicks with no arm
movement
Internal motor problem or low
battery
h
Internal arm problem
h
Check fuses
h
Battery harness connections
h
Battery under load
h
Inadequate charge
Additional information can be found by contacting Nortek Security & Control.