Mighty Mule FM500 Blue Board - Manual (Page 37)

34
Troubleshooting Guide
If your gate opener does not function properly after it is installed, use this guide before calling the GTO Service Department.
Audible Feedback
Symptom Diagnosis Check:
1 short beep upon
activation Blown Fuse
Low or Bad Battery
Loose Battery Connection • Fuse
• 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
• Battery Harness Connections
• Battery Under Load
1 beep then 2 beeps Master Motor Terminals
Shorted • Connections to Master Inputs
• Master Arm Power Cable
• Motor
• Circuit Board
1 beep then 3 beeps Slave 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.
2 beeps with 2 seconds
off Slave Arm Limit Switch
Error • Connections to Slave Inputs
• Slave Arm Power Cable
• Slave Input ORG & GRN, BRN & GRN voltage with
wires disconnected. 11VDC each across each terminal.
3 beeps with 2 seconds
off Master Arm Rev Counter
Error • Connections to Master Inputs
• Master Arm Power Cable
• Rev Counter
4 beeps with 2 seconds
off Slave Arm Rev Counter
Error • Connections to Master Inputs
• Master Arm Power Cable
• Rev Counter