TP-7070 7/18
TP-7070 7/18 103Section 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
Alternator
x AC output circuit breaker open Reset the breaker and check for AC voltage at the generator
set side of the circuit breaker.
—
x Transfer switch test switch in the OFF
position
Move the transfer switch test switch to the AUTO position. ATS O/M
x Transfer switch fails to transfer load Move the ATS test switch to the AUTO position.
Troubleshoot the transfer circuit and time delays.
ATS O/M, S/M
x Wiring, terminals, or pin in the exciter
field open
Check for continuity. Alt. O/S/M W/D
x Main field (rotor) inoperative
(open or grounded)
Test and/or replace the rotor.[
Alt. O/S/M
x Stator inoperative (open or grounded)
Test and/or replace the stator.[
Alt. O/S/M
x Vibration excessive
Tighten loose components.[
—
x x Voltage regulator settings incorrect
Adjust the voltage regulator.[
—
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 Identify and correct the fault condition, then reset the fault on
the controller.
Section 2.10
* Sec./Section—numbered section of this manual; Alt.—Alternator; ATS—Automatic Transfer Switch; Eng.—Engine; Cont.— Controller; 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.
To Next Page
Loading...
Need help?
General