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3. TROUBLESHOOTING GUIDE
(2) Load-handling system (including trucks with an Orbitrol steering system) (2/3)
Error code
on display
Error description Problem Resetting Error code conditions
LED
code
Page
413
Pump motor inverter unit
U-phase upper side FET defective
Drive motor inverter unit
U-phase lower side FET defective
The load-handling system won’t work. Turn the key switch OFF. 16 60
414
Pump motor inverter unit
V-phase upper side FET defective
Drive motor inverter unit
V-phase lower side FET defective
The load-handling system won’t work. Turn the key switch OFF. 17 60
415
Pump motor inverter unit
W-phase upper side FET defective
Drive motor inverter unit
W-phase lower side FET defective
The load-handling system won’t work. Turn the key switch OFF. 18 60
416
V-phase current detection abnormal, AD
input too low
V-phase current detection abnormal, AD
input too high
The load-handling system won’t work. Turn the key switch OFF. 24 60
V-phase current offset abnormal, AD
input too low
V-phase current offset abnormal, AD
input too high
The load-handling system won’t work. Turn the key switch OFF. 25 60
W-phase current detection abnormal, AD
input too low
W-phase current detection abnormal, AD
input too high
The load-handling system won’t work. Turn the key switch OFF. 26 60
W-phase current offset abnormal, AD
input too low
W-phase current offset abnormal, AD
input too high
The load-handling system won’t work. Turn the key switch OFF. 27 60
418
Pump motor inverter unit upper and
lower FET defective
(Error Code 218 also occurs because the
drive and pump motor inverter units are
connected with a copper bar.)
(Error Code 217 is also triggered
because the capacitor between the P and
N terminals cannot be charged.)
The travel, load handling, and PS (power
steering) systems are inoperative.
Contactor OFF.
Turn the key switch OFF. 15 61
419
Pump motor inverter unit upper FET
defective (Error Code 218 also occurs
because the drive and pump motor
inverter units are connected with a copper
bar.)
(Error Code 217 is also triggered
because the capacitor between the P and
N terminals cannot be charged.)
The travel, load handling, and PS (power
steering) systems are inoperative.
Contactor OFF.
Turn the key switch OFF. 19 61
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