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Troubleshooting Chart
Problem
Possible Cause
Generator set
Weak or dead battery
does not crank Battery connections
d
k
Open circuit in engine/controller
connections
Blown fuse F3, controller
Blown fuse F2, relay interface
board (RIB)
b
d (RIB)
Crank relay on relay interface
board (RIB)
Generator set master switch
Poor ground (--) connection
Starter
Controller
30
Section 6 Troubleshooting
Corrective Action
Recharge or replace battery.
Check for reversed or poor battery
connections.
Check for loose connections.
Check the wire harness continuity.
Replace fuse; if fuse blows again,
check circuit and components.
,
y
Replace fuse.
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.
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.
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.
Check connections to the master
switch on the ADC 2100.
Test function of the switch.
Clean and retighten.
Check the starter connections.
Rebuild or replace the starter.
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.
Reference
Generator Set O/M
—
Section 8.12
Section 10
Section 8.11
Section 10
Section 8.11
Section 10
Section 7.10
Section 10
Section 7.10
Section 10
Section 7.10
Section 7.9
Section 8.12
—
Section 10
Engine Service Manual (S/M)
Section 7
Section 10
TP-6359 7/08
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