May.20,2026
During daily operation, excavators may develop various faults due to wear, poor working conditions, insufficient maintenance, or improper operation. The electrical system detects faults in all systems and displays them on the monitor to alert the operator. Early small faults can be resolved safely, but ignoring them may lead to serious accidents and endanger the operator. Understanding fault codes allows timely shutdown to prevent accidents. Below are the meanings of common excavator fault codes:
E01: Auto mode system in HYPER system
E02: PC-EPC system
E03: Swing parking brake system
E04+CALL: Joystick neutral position system in HYPER system
E05: Governor motor system
E06+CALL: EPC solenoid valve drive system in HYPER system
E09: HYPER-GX system off
E101: Abnormal fault history record
E102: Abnormal clock data
E103: Buzzer output short circuit; buzzer drive wiring contacts 24V power cable
E104: Air filter clogged
E108: Water temperature above 105°C
E112: Wiper motor drive forward system short circuit (new models)
E113: Wiper motor drive reverse system short circuit (new models)
E114: Washer drive circuit short circuit (new models)
E202: LS selection solenoid valve circuit short circuit
E203: Swing parking brake solenoid valve circuit short circuit
E204: Pump merge/divide solenoid valve circuit short circuit
E205: Secondary relief solenoid valve circuit short circuit
E206: Travel speed switch solenoid valve circuit short circuit
E207: Quick mode solenoid valve circuit short circuit
E208: Quick mode solenoid valve circuit open circuit
E213: Swing parking brake solenoid valve circuit open circuit
E214: Pump merge/divide solenoid valve circuit open circuit
E215: Secondary relief solenoid valve circuit open circuit
E216: Travel speed switch solenoid valve circuit open circuit
E217: Mode selection input fault
E218: Network response timeout fault
E222: LS-EPC solenoid valve circuit short circuit
E223: LS-EPC solenoid valve circuit open circuit
E224: Front pump pressure sensor circuit abnormal
E225: Rear pump pressure sensor circuit abnormal
E226: Pressure sensor circuit power abnormal
E227: Engine speed sensor abnormal
E231: Active mode (swing) solenoid valve circuit short circuit
E232: Front pump TVC solenoid valve circuit short circuit (old models)
E233: Front pump TVC solenoid valve circuit open circuit (old models)
E235: Active mode (swing) solenoid valve circuit open circuit
E236: Rear pump TVC solenoid valve circuit short circuit
E237: Rear pump TVC solenoid valve circuit open circuit
E302: Swing stroke control solenoid valve circuit short circuit
E303: Swing stroke control solenoid valve circuit open circuit
E306: Feedback potentiometer circuit abnormal
E308: Fuel dial input abnormal
E313: Auto greaser controller fault (optional)
E315: Battery relay output circuit short circuit
E316: Governor motor out of adjustment
E317: Governor motor circuit open circuit
E318: Governor motor circuit short circuit
