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Troubleshooting Chart, continued
Problem
Possible Cause
Generator set
No fuel
cranks but
k b
Loose connection or open circuit
does not start
Air cleaner clogged
Incorrect controller configuration
No engine rotation sensed (check
for an overcrank fault shutdown)
Generator set
Low battery voltage
starts hard
Air cleaner clogged
Worn piston rings, valves
Generator set
Fault shutdown
starts but
shuts down
Generator set
Fault shutdown
stops
suddenly
No fuel
Fuel line restriction
Air cleaner clogged
Blown controller fuse (F3)
Blown auxiliary winding fuse (F1)
Blown relay interface board (RIB)
fuse (F2)
Engine overheated (hot engine
only)
Low oil pressure (LOP) shutdown
Engine overloaded
Loss of generator output voltage
to controller
Faulty K3 (flash) relay
TP-6359 7/08
Corrective Action
Check the fuel supply.
Check for loose or open
connections at the fuel solenoid
(lead 70A). Check the
controller/engine wiring continuity.
Clean or replace.
Check for correct controller
configuration parameters: unit
configuration (UC) and engine
configuration (EC).
Check for a locked rotor.
Check battery voltage, power
supply, and operation.
Replace element.
Check compression.
Check for a fault shutdown code
on the Advance Digital Control's
LED display. Correct the fault and
then move the generator set
master switch to the OFF/RESET
position to reset the ADC.
Check for a fault shutdown code
on the Advanced Digital Control's
LED display. Correct the fault and
then move the generator set
master switch to the OFF/RESET
position to reset the ADC.
Check the fuel supply.
Inspect fuel lines.
Replace element.
Replace fuse.
Replace fuse. If fuse blows again,
test generator components.
Replace fuse.
Check air intake, oil level, air
inlet/outlet.
Attempt startup. If the unit shuts
down, remove the lead from the
LOP switch and reset the
controller. A successful restart
attempt indicates a faulty LOP
shutdown switch.
Note: Check the engine oil
pressure before performing the
test and/or replacing the LOP
shutdown switch.
Reduce electrical load.
Check connections at P15 plug.
Check continuity of AC sensing
leads 11 and 44.
Check for Flash LED illumination.
Check RIB fuse. Replace relay
board.
Reference
—
Section 10
Section 3
Section 7.5
Section 8.6
Generator Set O/M
Section 3
Engine S/M
Section 7.4
Section 7.4
—
—
Section 3
Section 8.11
Section 8.11
Section 8.11
Generator set O/M,
Sections 2 and 3
Section 8.10
Generator Set I/M
Section 10
Section 7.10
Section 6 Troubleshooting
31
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