JLG 10VP Service And Maintenance Manual page 64

SECTION 3 - TROUBLESHOOTING
ERROR LED'S
CODE FLASHING
0 8
0 8
1 7
2 8
2 8
3 6
4 2
5 2
5 2
5 2
6 2
6 2
7 2
8 9
9 6
10 1
11 9
11 9
12 8
12 8
16 7
21 6
24 5
25 6
3-4
Table 3-2. MC-1 ERROR CODES
(Indicated by rapid LED flashing and periodic beep)
PROBABLE CAUSE
System Overvoltage - Charger
System Overvoltage - Driving down long steep grade Operate ground controls to reduce voltage
Controller Overtemperature
Drive Motor Plug - Open Circuit - check connectors
X103 & X104
Drive Motor Plug - Open Circuit - check motor con-
nections at motor
Brake Safety Relay
Brake Short Circuit
Brake Left Open Circuit - D-connectors to X103 &
X104 switched
Brake Left Open Circuit - Check pins 3 & 5 of X103
and brake wires
Brake Left Open Circuit - Check brake wires or plug at
drive motor
Brake Right Open Circuit - Check pins 2 & 5 of X104
and brake wires
Brake Right Open Circuit - Check brake wires or plug
at drive motor
Brake Open Circuit on one or both brakes
Switch Short Circuit (Joystick)
Power Circuit Defect
Battery Low (< 16.5 v)
Check pins & wire connections at X102 & joystick
box connector
Joystick defective
Check pins & wire connections at X102 & joystick
box connector
Joystick Box
Current Limiting - Motor Short Circuit - Gearmotor
defective
36v supply
Configuration Lost
RAM ROM
Unplug Charger
Turn unit off and allow to cool
Properly attach wires or pins A1 & A2
Properly attach wires or pins (WHT & BLK wires)
Replace Controller
Replace Brake
Switch D-connectors - Left Motor to X103; Right
Motor to X104
Properly attach wires or pins
Properly attach wires or pins
Properly attach wires or pins
Properly attach wires or pins
See above
Replace Joystick Box
Replace Controller
Charge Battery
Properly attach wires or pins
Replace Joystick Box
Properly attach wires or pins
Replace Joystick Box
Replace Gearmotor
Replace controller
Reprogram using MC-1 software, if error reoccours
then replace controller
Replace controller
– JLG Lift –
REMEDY
3120728