Trouble Shooting - Smartgen HEM4300 User Manual

14 TROUBLE SHOOTING

Symptoms
Controller no response with
power
Engine stop
Controller emergency stop
Oil pressure low alarm after
crank disconnection
Water temp. high alarm
after crank disconnection
Shutdown alarm in running
Crank failure
No response for starter
RS485 communication
abnormal
HEM4300 Engine Controller User Manual
Table 32 Troubleshooting
Check starting battery;
Check controller wirings;
Check DC fuse.
Check water/cylinder temperature is too high;
Check AC generator voltage;
Check DC fuse.
Check emergency stop button function is right or not;
Check emergency stop input is configured or not;
Check wire connection is open circuit or not.
Check oil pressure and its wire connections.
Check water temperature sensor and its wire connections.
Check related switch and wirings according to LCD information;
Check aux. input ports.
Check fuel circuit and related wirings;
Check starting battery;
Check speed sensor and its wire connections;
Refer to engine manual.
Check starter wire connections;
Check starting battery.
Check RS485 wire connections;
Check RS485 A and B are connected reversely or not;
Check PC communication port is damaged or not;
Check 120Ω resistor is enabled or not.
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Possible Solutions
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