Genie Z-30/20N, Service Manual

Page: 101 / 161

Part No. 139378 Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N 5 - 5
June 2011 Section 5 • Fault Codes
REV B FAULT CODE CHART
Fault Code
Programmer
Diagnostic Display
Condition Possible Causes Solution
34
MISSING CONTACTOR Machine will not drive.
Motor controller does
not detect the main
contactor PR1 or brake
release relay CR5.
Consult Genie
Industries Service
Department.
MAIN CONT DNC Machine will not drive.
Main contactor PR1 or
brake release relay CR5
did not close OR open
in org/red wire to PR1
and/or CR5 OR main
contactor and/or brake
release relay is
defective.
Consult Genie
Industries Service
Department.
41
LOW BATTERY
VOLTAGE
Machine will not drive.
Battery supply voltage
to motor controller less
than 32V DC.
Completely charge
batteries OR check
battery cable condition
OR check for corrosion
or loose connections at
battery terminals and
motor controller.
42
OVERVOLTAGE Machine will not drive.
Battery supply voltage
to motor controller more
than 55V DC OR
machine is being
operated with the
battery charger plugged
in.
Be sure the battery
charger is disconnected
OR check for loose
battery cables or poor
connections.
43
THERMAL CUTBACK Machine will not drive.
Machine being operated
outside of temperature
range of -13°F to
185°F / -25°C to 85°C
OR machine being
driven under excessive
load OR motor
controller is not being
cooled sufficently.
Operate machine within
specified temperature
limits OR check for
debris around motor
controller preventing
proper cooling of the
controller OR check for
mechanical restrictions
causing excessive load
on the machine.