SOFTWARE
DIAGNOSTICS
Engine RUN State Shutdowns:
Engine RUN state is -
DC
circuit breaker on, generator successfully started and running
In
the RUN state all shutdowns are logged
and
a light
will
be
illuminated
on
the control panel. The
generator
will be
shut
down
and
the light(s) will stay illuminated until the
12VDC
power to
the
generator is cycled.
Oil
Pressure
shutdowns illuminate
the
OIL
PRESSURE
light.
Engine
Coolant
Temperature shutdowns illuminate the
ENGINE
TEMP
light.
Exhaust Temperature High shutdown illuminates the
EXHAUST
TEMP
light.
External Alarm shutdown illuminates
the
EXT. ALARM light.
OverSpeed and
UnderSpeed
shutdowns illuminate the pair
of
SPEED
lights.
All other shutdowns illuminate
the
pair
of
CHECK
ENGINE
lights.
1
E1:1gine
Coolant J'emp Shorted
Short circuit (o ohms)
o faulty temperature sensor
o pinched
or
bare wire
in
harness
Engine Coolant Temp
Open
Open
circuit
o faulty ECT sensor
2
o loose connection
or
corroded wiring
Engine Coolant Temp High
Reading more
than
o faulty temperature sensor
3
100°C (212°F)
o engine
heat
soak after normal shutdown
UnderSpeed
Under
1620
rpm
for
4
sees
o excessive load on generator
4
o fuel supply insufficient
Over
2340
rpm
for
0.5
seconds
OverSpeed
Over
2160
rpm
for
1.0
seconds
o vacuum leak in intake manifold
or
hoses
5
Over
2070
rpm
for
2.0
seconds
o throttle shaft sticking
Over
19aP
rpm
fQ!4:0
seconds
o loose connection
or
corroded wiring
6
Crank Sensor Fault
Internal
ECU
parameter,
o sensor tip contaminated with metal filings
speed signal intermittent
o crank speed sensor faulty
o speed conditioning module faulty
o loose connection
or
corroded wiring
Crank
Signal Loss
No
speed signal
to
ECU
for
o sensor tip contaminated with metal filings
7
3+ seconds
o crank speed sensor faulty
. o speed conditioning module faulty
8
Throttle Loss
of
Home
Internal
ECU
parameter
o throttle shaft sticking
o battery weak
Oil Pressure Sender Shorted
Short circuit
(o
ohms)
o faulty oil pressure sender
9
o pinched
or
bare
wire
in
harness
Oil Pressure Sender Open
Open
circuit
(oo
ohms)
o faulty oil pressure sender
10
o loose connection
or
corroded wiring
Reading less
than
8 psi for
o check oil level
11
Oil Pressure
Low
a insure
proper
oil viscosity
ssec
o check lubrication system for leaks
34
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