TP-6198 3/15 25Section 3 Troubleshooting
Section 3 Troubleshooting
3.1 Introduction
Corrective action and testing in many cases requires
knowledge of electrical systems and electronic circuits.
Have an authorized distributor/dealer or trained service
technician perform testing and service.
Refer to the engine service manual for engine service
information.
The first step in troubleshooting the generator set
controls is to verify that the controller is correctly
configured for the generator set. The generator set
installation manual explains how to check and change
the controller configuration.
If the troubleshooting procedures in this section identify
a bad part, refer to the parts catalog for replacement part
numbers. See the List of Related Materials in the
Introduction for the literature part numbers.
3.2 Initial Checks
When troubleshooting, always check for simple
problems first. Check for the following common
problems before replacing parts:
D Loose connections or damaged wiring.
D Dead battery.
D Fault shutdown. Check for a fault code on the
ADC 2100 display. Section 4.5 describes the
warning and shutdown fault codes.
D Blown fuses. Fuses protect the controller, SCR
module, and relay interface board. Always check and
replace the fuses before replacing other components.
D Incorrect controller settings. Always check the
controller configuration settings before replacing the
controller. Section 4.9 explains how to check and
change the controller settings.
D Inadequate fuel supply. Check for damaged
primary or secondary fuel regulators, loose
connections to the fuel solenoid valve, a damaged or
closed fuel shutoff valve, an empty LP fuel tank, or
other problems with the fuel supply. Check the fuel
supply pressure to the generator set. See
Section 5.11, Fuel Systems.
3.3 Troubleshooting Chart
Use the following table as a reference in troubleshooting
individual problems. Generator set faults are listed in
groups and include likely causes and remedies. The
simplest and most likely causes of the problem are listed
first; follow the recommendations in the order shown.
The reference column provides additional sources of
information in this and related manuals regarding the
problem and solution. See the List of Related Materials
for document part numbers.
Troubleshooting Chart
Problem Possible Cause Corrective Action Reference
Generator
set does not
crank
Weak or dead battery Recharge or replace battery.
If battery is weak or dead, check battery charger fuse, power
supply, and operation.
O/M
Battery connections Check for reversed or poor battery connections. —
Open circuit in engine/
controller connections
Check for loose connections.
Check the wire harness continuity.
W/D
Blown fuse F3, controller Replace fuse; if fuse blows again, check circuit and
components.
Section 5.12;
W/D
Blown fuse F2, relay
interface board (RIB)
Replace fuse. Section 5.12
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 valve
Lead 71A at P30
Leads FP and FN at the rotor
Repair or replace the component causing the blown fuse.
W/D
Engine S/M: Engine Service Manual I/M: Generator Set Installation Manual O/M: Generator Set Operation Manual
W/D: Wiring Diagram Manual
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