Maeda MC815C, Operation Manual, Page: 389 / 426

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7. TROUBLESHOOTING
7.1 LIST OF ERROR CODE
The following are the fly jib related errors indicated on the monitor.
If any error codes other than the following are shown, the failure other than in a fly jib is possible, so see
“Operation 11.7 List of error codes”.
Error code Details of failure Check items when failure occurs
ES15 Fly-jib angle sensor input error
• Check fly-jib angle sensor
• Check harness of fly-jib angle sensor related
circuit
ES16 Fly-jib length sensor input error
• Check fly-jib length sensor
• Check harness of fly-jib length sensor related
circuit
ES17 Load cell input error
• Check load cell
• Check load cell amplifier
• Check harness of load cell related circuit
EV20 Fly jib power supply voltage error
• Check converter 24V
→
12V
• Check power supply related circuit
EOF02H
Fly jib derricking/
Extend/retract switching SOL Hi error
• Check switch valve
• Check harness of switch valve related circuit
EOF02L
Fly jib derricking/
Extend/retract switching SOL Lo error
EV21 Sensor power supply Lo error • Check harness of related circuit
If any errors occur that does not have error codes, see “Fly jib 7.2 When these phenomena happen”.