Fault Finding - Smartgen HGM400 Series User Manual

please disconnect controller's all terminal connections, in order to prevent high
voltage into controller and damage it.

13 FAULT FINDING

Symptom
Controller no response
with power.
Genset shutdown
Low oil pressure alarm
after crank disconnect
High water temp. alarm
after crank disconnect
Shutdown Alarm During
Running
Fail to Start
Starter no response
Genset running while ATS
not transfer
HGM400 Series Genset Controller
HGM400 Series Genset Controller User Manual
Possible Remedy
Check starting batteries;
Check controller connection wirings;
Check DC fuse.
Check the water/cylinder temperature is too high or not;
Check the genset AC voltage;
Check DC fuse.
Check the oil pressure sensor and its connections.
Check the temperature sensor and its connections.
Check related switch and its connections according to
the information on LCD;
Check auxiliary inputs.
Check fuel circuit and its connections;
Check starting batteries;
Check speed sensor and its connections;
Refer to engine manual.
Check starter connections;
Check starting batteries.
Check ATS;
Check the connections between ATS and controllers.
ISSUE 2015-05-27 Version 1.6 Page 44 of 44