Best Tugs BRAVO 5 User Manual page 21

Error Code Translations
Most codes are safely reset by turning the tug off, waiting five seconds, then
back on again. If the system fails to reset please contact Best Tugs™ at
800.914.2003 for assistance.
Blue LED Light off: System powered down after 20 minutes of no use.
Blue LED Light on: Controller operational, no faults.
All codes have two parts. Count the sequence of flashes (*) to identify code.
Common codes are blue.
Flashes
1,1 * *
1,2 * **
1,3 * ***
1,4 * ****
1,5 * *****
2,1 ** *
2,3 ** ***
2,4 ** ****
3,1 *** *
3,2 *** **
3,3 *** ***
3,4 *** ****
3,5 *** *****
4,1 **** *
4,2 **** **
4,3 **** ***
4,4 **** ****
Common Controller Error Codes for the B12 & B18
50: Under Voltage
52: Under temperature
53: Over Temperature
90: Motor Over Temp Cutback
95: Controller Under Temp
Meaning
Aircraft Chocked or Brake Set
Throttle Fault
Speed Limit Fault
Low Battery (Charge Required ASAP)
Over Voltage (Unplug tug before use)
Main Contactor Driver Failed Open
Main Contactor Stuck, driver fail, or brake coil
Main Contactor Driver Failed Closed
HPD Fault
Brake on (Electromagnetic brake open or shorted)
Pre-Charge Fault (Low Battery)
Brake Off (Electromagnetic Brake open or shorted)
HPD Fault (Throttle was engaged when tug was turned
on)
Current Fault (controller failure, motor or wire failure)
Motor voltage (short in motor or wiring)
EEPROM Failure
Power Section Fault
96: Stall Detected
97: Controller Over Temp
99: Undervoltage Cutback
102: User pressed the E-Stop
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