TP-6255 7/0640 Section 6 Troubleshooting
Troubleshooting Chart
Problem Possible Cause Corrective Action Reference
Generator set
Weak or dead battery Recharge or replace battery. Generator Set O/M
does not crank
Battery connections Check for reversed or poor battery
connections.
—
Open circuit in engine/controller
connections
Check for loose connections.
Check the wire harness continuity.
Section 8.13
Section 10
Blown fuse F3, controller Replace fuse; if fuse blows again,
check circuit and components.
Section 8.12
Section 10
Blown fuse F2, relay interface
Replace fuse. Section 8.12
board (RIB)
If fuse blows again, disconnect
the board leads one at a time to
identify the cause of the blown
fuse:
Lead 70A at the fuel solenoid
Lead 71A at the crank relay
Lead FP and FN at the rotor
Repair or replace the component
causing the blown fuse.
Section 10
If the fuse continues to blow and
the previous step did not identify
the cause, remove the leads from
the P14 connector using a pin
pusher, part #241918 (large) or
241919 (small). If replacing the
leads does not solve the problem,
replace the RIB.
Section 7.10
Section 10
Crank relay on relay interface
board (RIB)
Check connections to the RIB.
Check for 12VDC to the RIB
between PF2 and 71N.
Check for a good ground
connection (lead N)
Check crank relay K2 operation
(LED3). Replace the RIB if the
relay does not operate.
Section 7.10
Section 10
Section 7.10
Generator set master switch Check connections to the master
switch on the ADC 2100.
Test function of the switch.
Section 7.9
Section 8.13
Poor ground (--) connection Clean and retighten. —
Starter
Check the starter connections. Section 10
Rebuild or replace the starter. Engine Service Manual (S/M)
Controller Check the controller connections
and operation. Check for power
to the controller. Move the
generator set master switch to the
OFF/RESET position and then to
the RUN position.
Section 7
Section 10
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