Mighty Mule MM600ET-PRO - Manual (Page 36)

Audible Feedback
Symptom Diagnosis Check:
1 short beep upon
activation Blown Fuse
Low or Bad Battery
Loose Battery Connection • Fuses - control board and battery harness cable
• Battery Under Load
• Battery Harness Connections
1 short beep upon
power up Circuit Board Powered
Up & Ready • Normal Operation
Continuous
Uninterrupted Alarm Circuit Board Senses an
Obstruction
• Path of Gate
• Gate for Level and Plumb
• Stall Force Adjustment
• Disconnect Safety Devices
• Rev Counter
1 beep with 10 seconds
off Low Battery Condition • Fuses - control board and battery harness cable
• Battery Harness Connections
• Battery Under Load
1 beep then 2 beeps with
2 seconds off Master Motor Terminals
Shorted • Connections to Master Inputs
• Master Arm Power Cable
• Motor
• Circuit Board
1 beep with 2 seconds
off Master Arm Limit Switch
Error • Connections to Master Inputs
• Master Arm Power Cable
• Master Input ORG & GRN, BRN & GRN voltage with
wires disconnected. 11VDC across each terminal.
3 beeps with 2 seconds
off Master Arm Rev Counter
Error • Connections to Master Inputs
• Master Arm Power Cable
• Rev Counter
33
Troubleshooting Guide
If your gate opener does not function properly after it is installed, use this guide before calling the GTO Service Department.
Additional information can be found online 24 hours 7 days a week at the
GTO Tech Wizard (support.gtoinc.com/Support/TroubleShooter.aspx)