Fault Finding - Trane SmartGen HSC940 Owner's Manual

Symptoms
Controller no response with
power.
Genset shutdown
Low oil pressure alarm after crank
disconnect
High water temp. alarm after crank
disconnect
Shutdown Alarm in running
Fail to start
Starter no response
Stepping Motor Reverse
GOV is out of control.
30

Fault Finding

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 informa-
tion on LCD;
Check auxiliary input ports.
Check fuel oil circuit and its connections;
Check starting batteries;
Check speed sensor and its connections;
Refer to engine manual.
Check starter connections;
Check starting batteries.
Cross connect the S11 and S12;
Cross connect the S21 and S22;
Change configuration (motor reduce direction) via PC.
Check the speed sensor voltage is no less than 2V when cranking.
Check the connections of S11, S12, S21, S22.
Possible Solutions
032-5094-1A-EN