.
OPERATION
TROUBLES AND ACTIONS
Electronic Control System
When the user code is shown on the display portion of the machine
monitor, take the respective measures shown in the self-diagnosis
chart below.
Machine Monitoring System
Monitor
display
Failure mode Action
E02 Pump control system error
When emergency pump drive switch is at the up
(emergency) position, normal operations become possible,
but have inspection carried out immediately. (*)
E03 Swing brake system error
Move the swing brake cancel switch up to release the brake.
When applying the swing brake, operate the swing lock
switch manually. Depending on the cause of the problem, it
may not be possible to release it. In any case, have
inspection carried out immediately.(*)
E10
Engine controller power source error
Engine controller drive system circuit
error (engine stopped)
Have inspection carried out immediately.
E11
Engine controller system error
Output reduced to protect engine
Operate machine to a safe posture and have inspection
carried out immediately.
E14 Abnormality in throttle system
Operate machine to a safe posture and have inspection
carried out immediately.
E15
Engine sensor (coolant temperature,
fuel pressure, oil pressure) system
error
Operations are possible, but have inspection carried out
immediately.
E0E Network error
Operate machine to a safe posture and have inspection
carried out immediately.
(*): For details of handling the emergency pump drive switch and swing brake cancel switch, see "Emergency Pump
Drive Switch (PAGE 3-71)" and "Swing Parking Brake Release Switch (PAGE 3-71)".
Point of Contact to Telephone when Error Occurs
If an error screen is displayed on the monitor, the telephone
number for the point of contact is displayed at the bottom of the
error screen.
REMARK
If no point of contact telephone number has been registered, no
telephone number is displayed.
It is necessary to register the telephone number, please ask your
Komatsu distributor to carry out the registration.
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