Genie Z-30/20N Service Manual page 100

Section 5 • Fault Codes
FAULT CODE CHART
Programmer
Fault Code
Diagnostic Display
21
THROTTLE FAULT 1
THROTTLE FAULT 2
31
CONT DRVR OC
32
MAIN CONT WELDED
33
PRECHARGE FAULT
5 - 4
Condition
Machine will not drive.
Machine will not drive.
Machine will not drive.
Machine will not drive.
Machine will not drive.
Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N
Possible Causes
Open in wht/red wire
#32 at pin 14 or red/wht
wire #29 at pin 16 on
the motor controller
going from drive joystick
Consult Genie
to pins 14 and 16 at the
Industries Service
motor controller OR pin
Department.
14 is internally shorted
to power or ground OR
the potentiometer on
the drive joystick is
defective.
Pin 14 (wht/red #32) is
shorted to power or
Consult Genie
ground OR the
Industries Service
potentiometer on the
Department.
drive joystick is
defective.
Main contactor (PR1) Replace main contactor
coil defective OR brake PR1 or brake release
release relay CR5 relay CR5 OR replace
defective. the motor controller.
Main contactor (PR1)
contacts stuck closed
OR grn wire at pin 17 on
motor controller shorted Consult Genie
to ground OR open in Industries Service
motor armature wiring Department.
OR motor controller has
an internal short to
ground.
Repair short between
B+ terminal on motor
controller and ground
External short between
OR replace motor
B+ terminal on motor
controller.
controller and ground
Note: Short can be on
OR motor controller is
any part of circuit
defective.
connected to the B+
terminal on the motor
controller.
June 2011
REV B
Solution
Part No. 139378