OPERATOR’S MANUAL
with Maintenance Information
Operating Instructions
53
Display Description
71
Motor Controller Main Contactor Fault: Check the connections to the main
contactor. Replace the contactor if necessary. Replace the Motor Controller if
necessary.
72
Motor Controller Over Voltage Fault: Check battery voltage and make sure the
battery charger is not on. The cycle power to the lift. If that does not resolve the
issue, try replacing the Motor Controller.
73
Motor Controller Thermal Cutback Fault: Drive or Lift Motor may be overheating. Let
the lift cool down. If that does not help cycle power to reset the Motor controller. If
that doesn’t resolve the issue, replace the Motor Controller.
74
Motor Controller Motor Fault: Check connections to the motors. Cycle power to the
lift and if that does not resolve the issue, replace the Motor Controller.
75
Motor Controller Pump Motor Fault: Check connections to the Pump Motor. Cycle
power to the lift and if that does not resolve the issue, replace the Motor Controller.
76
Motor Controller Left Drive Motor Fault: Check connections to the motors. Cycle
power to the lift and if that does not resolve the issue, replace the Motor Controller.
77
Motor Controller Right Drive Motor Fault: Check connections to the motors. Cycle
power to the lift and if that does not resolve the issue, replace the Motor Controller.
78
Pump Motor Short Fault: Check connections to the pump motor. Cycle power to the
lift and if that does not resolve the issue, replace the Motor Controller.
79
Left Drive Motor Short Fault: Check the Motor connections and make sure they are
tight. Check the Motor for a short.
80
Over 80% Load Warning: Platform is getting close to its limit of weight. Consider not
adding more load.
81
Right Drive Motor Short Fault: Check the Motor connections and make sure they are
tight. Check the Motor for a short.
82
Left Brake Coil Fault: Check the connections to the Coil’s terminals and make sure
they are tight. If so, check the coil itself to see if it is open or shorted.
83
Right Brake Coil Fault: Check the connections to the Coil’s terminals and make sure
they are tight. If so, check the coil itself to see if it is open or shorted.
84
Motor Post shorted: Check the connections of the controller and motor. Make sure
the wiring is not shorted.
85
Brake Release Switch On: Check the wires to brake release switch or look for a
stuck switch.
86
Brake Release Not Stowed: Check if the platform is below down limit height. Check
the down limit switch and connections.
87
Brake Release Need Switch On: Check the wires to brake release switch or look for
a Stuck switch. Check the wires to the Toggle Switch or look for a stuck Toggle
Switch.
89
Motor Field Open: The field voltage is different from 1/2 battery voltage. Check
connections of the field wires or leakage to the vehicle frame.
