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MM371W / MM372W Installation Instructions
●
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 difficult 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
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 Feedback
Maintenance
