TP-5737 5/01
20 Section 4 Troubleshooting
Trouble Symptoms
Does not
crank
Cranks but
does not start
Starts hard
No or low
output voltage
Stops
suddenly
Lacks power
Overheats
Low oil
pressure
High fuel
consumption
Excessive or
abnormal noise
Probable Causes Recommended Actions
Section or
Publication
Reference*
Controller
x Controller master switch in the
OFF/RESET position
Move the controller master switch to the RUN or AUTO
position.
Section 2
x x x Controller fuse blown Replace the blown controller fuse. If the fuse blows again,
troubleshoot the controller.[
Section 2, W/D
x x Controller circuit breaker tripped Reset the controller circuit breaker. Section 2
x Controller master or start/stop switch
inoperative
Replace the controller master or start/stop switch. —
x Controller fault
Troubleshoot the controller.[
Section5or6
x x Controller circuit board(s) inoperative Replace the controller circuit board. Section5or6
Cooling System
x x Air openings clogged Clean the air openings. —
x Impeller inoperative Replace the impeller Gen. O/M
x x Seawater strainer clogged or restricted Clean the strainer. Gen. O/M
x High temperature shutdown Allow the engine to cool down. Then troubleshoot the
cooling system.
Eng. O/M
x Low coolant level shutdown, if
equipped
Restore the coolant to normal operating level. Gen. O/M
x Coolant level low Restore the coolant to normal operating level. Gen. O/M
x Thermostat inoperative Replace the thermostat. Eng. S/M
x Cooling water pump inoperative Tighten or replace the belt. Replace the water pump. Eng. O/M or S/M
* Sec./Section—numbered section of this manual; ATS—Automatic Transfer Switch; Eng.—Engine; Gen.—Generator Set; I/M—Installation Manual; O/M—Operation Manual; S/M—Service
Manual; S/S—Spec Sheet; W/D—Wiring Diagram Manual
[ Have an authorized service distributor/dealer perform this service.
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