TP-6694 7/18
TP-6694 7/18 79Section 4 Troubleshooting
Section or
Publication
Reference*
Recommended ActionsProbable Causes
Trouble Symptoms
Section or
Publication
Reference*
Recommended ActionsProbable Causes
Exercise run time
and/or event
records inoperative
Displays error
message/locks up
Excessive or
abnormal noise
High fuel
consumption
Low oil pressure
Overheats
Lacks power
Stops suddenly
No or low output
voltage
Starts hard
Cranks but
does not start
Does not crank
Electrical System (DC Circuits)
x x Battery connections loose, corroded,
or incorrect
Verify that the battery connections are correct, clean, and
tight.
Section 3
x x Battery weak or dead Recharge or replace the battery. The spec sheet provides
recommended battery CCA rating.
Section 3, 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
Engine
x x x x Air cleaner clogged 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 spec
sheet for wattage specifications.
S/S
x Exhaust system leak Inspect the exhaust system. Replace the inoperative
exhaust system components.[
I/M
x Exhaust system not securely installed Inspect the exhaust system. Tighten the loose exhaust
system components.[
I/M
x x x x Governor inoperative
Adjust the governor.[
Eng. S/M
x x Valve clearance incorrect
Adjust the valves.[
Eng. S/M
x Vibration excessive Tighten all loose hardware. —
x x x Ignition system inoperative (gas
models only)
Check the ignition system
(spark plugs, spark plug wires, etc.).
Eng. O/M, Eng.
S/M
x x x x x Engine ECM and/or sensors Troubleshoot the engine ECM and/or sensors. Eng. O/M, Eng.
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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