Product Manual

4-1
4. Troubleshooting
TROUBLESHOOTING WITH TABLE 4-1
To aid troubleshooting the genset controller causes
the status indicator light to blink the numeric code
assigned to the fault that caused shutdown. For a
brief description of the fault and step-by-step cor-
rective action, refer to TABLE 4-1. TROUBLE-
SHOOTING, which lists the fault codes in numerical
order.
If you are unable to resolve the problem after taking
the corrective actions suggested, contact an autho-
rized Onan dealer. See HOW TO OBTAIN SER-
VICE (p. 1-2).
Note: Many genset shutdowns can be avoided by
performing periodic maintenance on schedule
(TABLE 3-1. PERIODIC MAINTENANCE SCHEDULE)
and by not running the genset out of fuel. Note that
when the genset and propulsion engine draw from
the same fuel tank, the fuel dip tubes are usually ar-
ranged so that the genset will run out of fuel first. By
marking the genset empty point on the fuel gauge, it
will be easier to tell when the genset may run out of
fuel.
FAULT CODE BLINKING
At fault shutdown, the status indicator light will re-
peatedly blink sets of 1, 2, 3 or 4 blinks.
• One blink indicates shutdown due to high en-
gine coolant temperature.
• Two blinks indicate shutdown due to a loss of
engine oil pressure.
• Three blinks indicate a service fault. Press
Stop once to cause the two-digit, second-level
shutdown code to blink. (Pressing Stop again
will stop the blinking.) The two-digit code con-
sists of 1, 2, 3, 4 or 5 blinks, a brief pause, and
then 1 to 9 blinks. The first set of blinks repre-
sents the tens digit and the second set of blinks
the units digit of the shutdown code number.
For example, shutdown code No. 36 appears
as:
blink-blink-blink—pause—blink-blink-blink-blink-blink-blink—
long pause—repeat
• Four blinks indicate that cranking time ex-
ceeded 35 seconds.
•
To avoid the possibility of anyone misinterpreting
Code Nos. 3 and 4 as Code Nos. 33 and 44, the lat-
ter have not been assigned faults.
RESTORING FAULT CODE BLINKING
Blinking continues for five minutes and stops. To re-
store blinking press the control switch to STOP
(Prime) until the light comes on (3 to 4 seconds).
Then press STOP (Prime) three times to restores
blinking.
Note: The last fault logged will blink even though the
condition that caused the shutdown may have been
corrected.