LDU ERROR CODES 12
en-103
12.6 HYBRID ENGINE CONTROLLER ERROR CODES________________________________
Hybrid engine controller error/fault codes display on the
LDU as a two digit error code.
LDU Error Code Description
Caution
LED
Alarm
Sounding
Engine
Stop
Traction
Stop
Mow Stop
On Off Yes No Yes No Yes No Yes No
Pack Voltage too high. Engine speed
is set to idle. Restart mower.
Continue with normal operation.
Notify maintenance personnel at end
of shift.
44 444
Pack Voltage too low. Engine speed
is set to idle. Restart mower.
Continue with normal operation.
Notify maintenance personnel at end
of shift.
44 444
Generator temperature greater than
266° F (130° C). Engine speed is set
to idle. Restart mower. Continue with
normal operation. Notify
maintenance personnel at end of
shift.
44 444
Generator temperature greater than
212° F (100° C) or rectifier
temperature greater than 176° F (80°
C). Generator derates. Shut mower
down and wait ten minutes. Restart
mower. If fault returns, return mower
to maintenance shed.
44 444
Throttle actuator Fault. Engine
speed is set to idle/spring return.
Restart mower. If fault returns, return
mower to maintenance shed.
44 444
Rectifier temperature greater than
212° F (100° C) for 3 seconds.
Generator derates. Restart mower.
Continue with normal operation.
Notify maintenance personnel at end
of shift.
44 444
Pack voltage sensor greater than 70
VDC for 3 seconds. Engine shut
down. Restart mower and return to
maintenance shop
444 44
Pack voltage sensor 2VDC for 2
seconds. Engine speed set to
idle.Return mower to maintenance
shop.
44 444
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