Section 5 • Fault Codes
5 - 12
GR-20J • GR-26J
Part No. 227656
September 2016
FAULT CODE CHART
Error Source
Error Type
ID
Name
ID
Name
Condition
Solution
42
Drive shorted
The drive output of the
base board is short-
circuited.
It is an internal fault.
Replace the controller.
42
Driver 3
The base board and the
controller have performed a
check of the signals for the
drive conductor. If the
controller board detects a
problem in its own control
circuit (right or left motor),
this alarm will appear.
It is an internal fault.
Replace the controller.
43
Driver2
The base board and the
controller perform a check
of the signals for the pump.
If the controller board
detects a problem in its
own control circuit, this
alarm appears.
It is an internal fault.
Replace the controller.
44
Driver1
The interface and logic
board performs a counter-
check of signals for the
steering choice. If the logic
detects a problem in its
own control circuit (field
conductor circuit), this
alarm appears.
It is an internal fault.
Replace the controller.
46
No ground
current
Although the ground
conductor is active, no
current through the field is
detected.
Check the connection of the
motor to the controller or look
for possible leakage to the
framework of the platform. If
everything is OK, the controller
has an internal fault.
02
Controller
logic
board
47
Pump sensor
The current sensor of the
pump is not working
correctly. Its output voltage
is outside the acceptable
range.
It is an internal fault.
Replace the controller.
