11-1
11. Troubleshooting
WARNING
Hot engine parts can cause severe
burns. Always allow the engine time to cool be-
fore performing any maintenance or service.
The Fault Codes are listed in numerical order along
with step-by-step corrective actions. Refer to the
appropriate wiring diagram and harness drawings
beginning on Page A-1.
First note the following:
• Maintaining engine oil level, keeping battery
connections clean and tight, watching the fuel
gauge, not overloading the genset, etc. will
prevent most shutdowns.
• When the genset and vehicle engine share a
common fuel tank the fuel dip tubes are usual-
ly arranged so that the genset will run out of
fuel first. Marking the genset empty point on
the fuel gauge will make it easier to tell when
to stop the genset before running it out of fuel.
FAULT CODES
The genset controller provides extensive diagnos-
tics by causing the status indicator light on the Con-
trol Switch to blink in coded fashion. Following a
fault shutdown, the indicator light will repeatedly
blink 2, 3 or 4 blinks at a time.
• Two blinks indicates a low oil pressure fault.
• Three blinks indicates a service fault. Press
Stop once to cause the two-digit, second-lev-
el fault code to blink. (Pressing Stop again will
stop the blinking.)The two-digit code consists
of 1, 2, 3, 4 or 5 blinks, a brief pause, and then
1 to 9 blinks. The first set of blinks represents
the tens digit and the second set of blinks the
units digit of the fault code number. For exam-
ple, Fault Code No. 36 appears as:
blink-blink-blink—pause—blink-blink-blink-blink-blink-blink—
long pause—repeat
• Four blinks indicates that cranking exceed-
ed 30 seconds without the engine starting.
•
Note: Fault Code Nos. 3 and 4 are first level
faults. Avoid interpreting them as second-level
Fault Code Nos. 33 and 44, which have purpose-
ly not been assigned as fault codes.
Restoring Fault Code Blinking – The fault code
stops blinking after five minutes (15 minutes, Series
HGJAA & HGJAD). Press Stop three times within
five seconds to restore blinking. Note that the last
fault logged will blink even after the condition
that caused the shutdown has been corrected.
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