TP-6953 7/19120 Section 7 Troubleshooting
Trouble Symptoms
Probable Causes Recommended Actions
Section or
Publication
Reference*
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
Displays error
message/locks up
Exercise run time
and/or event
records inoperative
Electrical System (DC circuits)
x x
Battery connections loose, corroded,
or incorrect.
Verify that the battery connections are correct, clean,
and tight.
—
x x
Battery weak or dead. Recharge or replace the battery. The spec sheet
provides recommended battery CCA rating.
Eng. O/M, S/S
x x Starter/starter solenoid inoperative. Replace the starter or starter solenoid. Eng. S/M
x x
Engine harness connector(s) not
locked tight.
Disconnect the engine harness connector(s) then
reconnect it to the controller.
W/D
x Fault shutdown. Reset the fault switches and troubleshoot the controller. Section 2
x
High exhaust temperature switch
inoperative.
Replace the inoperative switch. Gen. S/M or W/D
Engine
x x x x
Air cleaner/backfire flame arrestor
clogged, if equipped.
Clean or replace the filter element. Eng. O/M
x x x x x Compression weak.
Check the compression.[
Eng. S/M
x x x x x
Engine overload. Reduce the electrical load. See the generator set
installation manual for wattage specifications.
I/M
x
Exhaust system leak. Inspect the exhaust system. Replace the inoperative
exhaust system components.[
Section 3, I/M
x
Exhaust system not securely installed. Inspect the exhaust system. Tighten the loose exhaust
system components.[
Section 3, I/M
x x x x Governor, if equipped, inoperative.
Adjust the governor.[
Gen. S/M
x x Valve clearance incorrect.
Adjust the valves.[
Eng. S/M
x Vibration excessive. Tighten all loose hardware. —
x x x x x
Engine ECM and/or sensors. Troubleshoot the engine ECM and/or sensors. Eng. O/M,
Eng. S/M
x x Engine overheated. Check air intake, fuel, oil level and air inlet/outlet. O/M, I/M
x x Engine overloaded. Reduce electrical load. I/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
[ Have an authorized service distributor/dealer perform this service.
To Next Page
Loading...
