138 Powermax125 Service Manual 808070
8 – Troubleshooting and System Tests
Fault code format – 1-nn-n
These fault codes can only be seen on the service screen.
Fault code format – 2-nn-n
These fault codes usually relate to either the DSP or the power board and can only be seen on the service screen.
1-nn-n
Fault
code
Description
Power
LED
Fault
LED
Fault
icon
Solutions
1-00-0 Digital signal processor fault
On On
These are internal processor checks and
are not likely to be caused by a hardware
failure.
• Perform a cold restart.
If that does not fix the problem, it is
possible that the DSP or power board has
failed.
1-10-0 Analog to Digital (A/D)
converter fault
1-20-0 I/O fault
2-nn-n
Fault
code
Description
Power
LED
Fault
LED
Fault
icon
Solutions
2-00-0 Analog to Digital (A/D)
converter value out of range
On On
• Perform a cold restart.
If that does not fix the problem, it is
possible that the DSP or power board has
failed.
2-01-0 Auxiliary switch disconnected • Check the auxiliary switch cable.
•Perform Test 12 – AUX switch on
page 164.
2-10-0 Inverter module temperature
sensor open
• Check the associated wiring.
•Perform Test 4 – Inverter temperature
sensor on page 154.
If no problems are found, it is possible
that the inverter heatsink temperature
sensor assembly (228805) has failed.
2-10-1 Inverter module temperature
sensor shorted
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