30
13 L left blade motor fault code
A master controller fault code
BMS battery fault code
14 General status controller fault
15 R right blade motor fault code
B slave controller
M middle blade motor fault code
16 cutting hours
17 deck height indication
ERROR CODE
The digital display provides the codes that are generated by the different components.
These codes are shpown when a problem is detected within the electrical operating system. Some
of these codes can be readily resolved by the operator and the rest will require service from your
Greenworks Commercial Dealer.
The following table shows Troubleshooting Codes.
TROUBLESHOOTING CHART
Code Effect of fault Possible cause Set/Clear conditions
12 Controller Overcurrent
Shutdown Motor;
Shutdown Main Contactor;
Shutdown EM Brake;
ShutdownThrottle;
FullBrake;
ShutdownPump.
1. External short of phase U,V,
or W motor connections.
2. Motor parameters are mis-
tuned.
3. Controller defective
4. Speed encoder noise
problems.
Set: Phase current exceeded
the current
Clear: Cycle KSI.
13 Current Sensor Fault
Shutdown Motor;
Shutdown Main Contactor;
Shutdown EM Brake;
Shutdown Throttle;
FullBrake;
ShutdownPump.
1. Leakage to vehicle frame
from phase U, V, or W (short
in motor stator).
2. Controller defective.
Set: Controller current sensors
have invalid offset reading.
Clear: Cycle KSI.
14 Precharge Failed
Shutdown Motor;
Shutdown Main Contactor;
Shutdown EM Brake;
Shutdown Throttle;
FullBrake;
Shutdown Pump.
1. See Monitor menu » Battery:
Capacitor Voltage.
2. External load on capacitor
bank (B+connection terminal)
that prevents the capacitor
bank from charging.
Set: Precharge failed to charge
the capacitor bank to the KSI
voltage.
Clear: Cycle Interlock input
or use VCL function Enable_
Precharge().
15 Controller Severe Undertemp
Shutdown Motor;
Shutdown Main Contactor;
Shutdown EMBrake;
Shutdown Throttle;
Full Brake;
Shutdown Pump.
1. See Monitor
menu » Controller:
Temperature.
2. Controller is operating in an
extreme environment.
Set: Heatsink temperature
below -40°C/F
Clear: Bring heatsink
temperature above -40°C/F,
and cycle interlock or KSI.
ELECTRICAL SYSTEM
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