Section 5 • Fault Codes
5 - 10
GR-20J • GR-26J
Part No. 227656
September 2016
FAULT CODE CHART
Error Source
Error Type
ID
Name
ID
Name
Condition
Solution
23
VMN high
The VMN voltage of one
of the motors is high when
it should be low.
This alarm appears only on
start-up. Check: internal motor
connections. Electric cable
connections, leakage from the
motor to the framework of the
lorry. If everything is OK, the
controller has an internal fault.
24
Pump VMN
low
The VMN voltage of the
pump is low when it
should be high.
This alarm may appear during
stand-by or during pump
operation. Check: internal pum p
connections. Electric cable
connections, leakage from the
pump to the framework of the
platform. If everything is OK, the
controller has an internal fault.
25
Pump VMN
high
The VMN voltage of the
pump is high when it
should be low.
This alarm appears while the
pump is working. Check:
internal pump connections.
Electric cable connections,
leakage from the pump to the
framework of the platform. If
everything is OK, the controller
has an internal fault.
26
VMN right low
The VMN voltage of the
right motor is low when it
should be high.
This alarm only appears when
the drive motors are activated.
Check: internal motor
connections. Electric cable
connections, leakage from the
motors to the framework of the
platform. If everything is OK, the
controller has an internal fault.
02
Controller
logic
board
27
VMN right
high
The VMN voltage of the
right motor is high when it
should be low.
This alarm only appears when
the drive motors are activated.
Check: internal motor
connections. Electric cable
connections, leakage from the
motor to the framework of the
platform. If everything is OK, the
controller has an internal fault.
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