HITACHI ZAXIS-SERIES EXCAVATOR FAULT CODES
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**CID code Name**
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Number Error Code Description
1 F6 Differential pressure
F7 Pump delivery pressure
F8 Pump displacement angle
F9 Pump displacement angle control signal
F10 Hidraulic oil temperature
2 F6 Approx.pimp flow rate( pump angle X rpm)
F7 Approx. Pump displacement torque ( pimp angle X rpm)
F8 Potential pump displacement torque
F9
F10
3 F6 Set engine speed
F7 Actual engine speed
F8 Actual/Set engine speed difference
F9 E.C angle
F10
4 F6 Boom valve control pressure
F7 Arm valve control pressure
F8 Bucket valve control pressure
F9 Swing valve control pressure
F10 Travel valve control pressure
5 F6 Power selector switch
F7 Auto idle switch
F8 Warming up switch
F9 Work mode selector switch
F10 Travel mode switch
6 F6 Power boost switch
F7 P switch
F8 Key switch
F9
F10
7
F6 Control signal pump displacement solenoid valve
F7 Chargeover pressure of travel motor
F8 Chargeover pressure of power boost
F9 Control signal to Swing brake
F10 Control signal to Swing dampener valve
8
F6 E.C motor position
F7 Control signal to ECM motor
F8 Control signal to ECM relay
F9 Control signal ro ECM Swing brake
F10 Control signal to ECM dampener valve
9
F6 TP pressure
F7 Travel direction switch
F8 Working brake switch
F9 Tire compensation switch
F10
10
F6 Wheel mode control switch
F7
F8
F9
F10