Installation Guide

28 MM571W / MM572W Installation Instructions MM571W / MM572W Installation Instructions 29
● Monthly, test the obstruction and entrapment protection systems.
● Monthly, service the gate operator (make sure the power switch is OFF). Clean extended operator arm with
a soft, dry clean cloth.
● On all gates weighing 250 lb. or more, routinely grease the ball bearing hinges at least 4 times a year; more
frequently if the gates are near a coastal area.
● Monthly, turn off the power switch and disconnect the Mighty Mule and move the gate to make sure the
gate is moving freely without sticking or binding. Lubricate the hinges or repair the gate as required before
reattaching the Mighty Mule.
● Monthly, check the gate system for potentially entrapments from new landscaping or construction.
Eliminate or guard as required.
● Monthly, check that the warning signs are mounted on each side of the gate and clearly visible. Replace the
signs if they are missing or damaged.
● Replace batteries every 2-3 years and properly recycle old batteries.
Audible Feedback Possible Diagnosis Check/Solution
Continuous Alarm
Control Board Senses an
Obstruction or lack of arm
movement
h Path of gate
h Gate for Level and Plumb
h The gate requires maintenance, it is to difcult to move.
h Adjust Force Factor
h For diagnostic purposes disconnect the external obstruction
detection devices, if the unit works troubleshoot these devices.
h Arm rev. counter
h Arm power cable connections.
1 beep every 10 seconds Low battery condition
h Check Fuses
h Battery Harness connections
h Battery Underload
h Inadequate charge
h Transformer
h Solar panel(s)
h Charge source wiring
2 beeps every 10 seconds Motor Fault
h Operator arm(s) connections
h Low Battery
h Internal motor short
h Inadequate charge
h Transformer
h Solar panel(s)
h Charge source wiring
1 beeps , pause , 1 beeps,…… Open circuit Primary arm
h Primary arm connections (white and green)
h Arm power cable
h Arm rev. counter
2 beeps , pause , 2 beeps,…… Open circuit Secondary arm
h Secondary arm connections (white and green)
h Arm power cable
h Arm rev. counter
3 beeps , pause , 3 beeps,…… Short circuit Primary arm
h Primary arm connections (white and green)
h Arm power cable
h Arm rev. counter
4 beeps , pause , 4 beeps,…… Short circuit secondary arm
h Secondary arm connections (white and green)
h Arm power cable
h Arm rev. counter
5 beeps, pause, 5 beeps
Stuck limit switch primary Arm or
Reading open motor circuit
h Arm power cable wires shorted, crossed or cut/disconnected
h Arm rev. counter stuck switch
6 beeps, pause, 6 beeps
Stuck limit switch Secondary arm or
Reading open motor circuit
h Arm power cable wires shorted, crossed or cut/disconnected
h Arm rev. counter stuck switch
If your gate operator does not function properly after it is installed, use this guide before calling the Nortek Security and Control
Service Department.
Troubleshooting Guide - Audible FeedbackMaintenance