Machine Faults (continued)
Fault
ID
Fault Title
Controller(s)
Affected
Fault
Condition/Circuit
Description
Additional Notes
Service Actions
P0A5C Starter/Generator
Hardware - DC
Over Current
T6
The
starter/generator
controller
detects an
internal
overcurrent
condition.
PTO and
starter/generator
is disabled.
Replace and program the starter/generator
controller (contact an Authorized Toro
Distributor for assistance).
P0A80 Battery -
Internal
Hardware
Failure
SC8
A Li-ion
battery internal
hardware
component has
failed.
Battery contactor
in Li-ion battery
controller is
opened.
The Li-ion battery is likely damaged.
Forward a copy of the battery output
file (.BDS) to Toro Service (contact an
Authorized Toro Distributor for assistance).
P0AA1 Battery
Contactor -
Stuck Closed
SC8
The battery
contactor in the
Li-ion battery
controller is
measured to be
closed when it
should be open.
Battery contactor
in Li-ion battery
controller is
opened.
Note:
If
the contacts
are “welded”
together, the
contactor will not
open.
The Li-ion battery controller (SC8) is
likely damaged. Forward a copy of the
battery output file (.BDS) to Toro Service
(contact an Authorized Toro Distributor for
assistance).
P0AA2 Battery
Contactor -
Stuck Open
SC8
The battery
contactor in the
Li-ion battery
controller is
measured to
be open when
it should be
closed.
Battery contactor
in Li-ion battery
controller is
opened.
The Li-ion battery controller (SC8) is
likely damaged. Forward a copy of the
battery output file (.BDS) to Toro Service
(contact an Authorized Toro Distributor for
assistance).
P0AC2 Battery - Over
Current
SC8
A battery cell is
pulling too much
current for too
long.
Note:
This fault
can either be
caused by too
much power
draw or a Li-ion
battery cell
imbalance.
Battery contactor
in Li-ion battery
controller is
opened.
1.
Cycle the key switch.
2.
Operate the machine in a reduced
power condition (example: disengage
the cutting units).
3.
Check the Li-ion battery and machine
wire harnesses for corrosion or
damage.
4.
A Li-ion battery may be damaged,
forward a copy of the battery output
file (.BDS) to Toro Service (contact
an Authorized Toro Distributor for
assistance).
P0AE4 Hybrid/EV -
Contactor Stuck
Open
T6
There is a
problem with
control of the
48V main
contactor –
the contactor
is open when
it should be
closed.
PTO,
starter/generator,
and lift/lower is
disabled.
Note:
If this fault
occurs with a
starter/generator
undervoltage
fault or system
undervoltage
related fault, test
the key switch.
1.
Check the voltage across the coil of
the main contactor with the key On. It
should be approximately 48V when the
contactor is closed.
2.
Check the voltage across the contactor
with the key On. It should be 0V when
the contactor is closed.
3.
Test the main contactor.
Greensmaster® eTriFlex 3360 and 3370
Page 3–21
Troubleshooting: Battery Charger Error and
19239SL Rev B
