Installation manual
ENGINE
TROUBLESHOOTING
The following troubleshooting table describes certain problems
relating to engine service, the probable causes
of
these prob-
lems. and the recommendations to overcome these problems.
Note:
The engine s electrical system is protected by a 20 amp
manual reset circuit breaker located on a bracket at the rear
of
the engine.
Problem
Probable
Cause
Verification/Remedy
Start
switch
depressed,
no
start,
no
1.
Battery
Switch
not
on.
1.
Check
switch
and/or
battery
connections.
panel
indications.
2.
20-Amp
circuit
breaker
tripped.
2.
Reset
breaker;
if
breaker
trips
again,
check
preheat
solenoid
circuit
and
check
circuit
for
shorts
to
ground.
3.
1
O-Amp
breaker
tripped
on
3.
Check
voltage
at
and
after
breaker
on
preheat
solenoid.
preheat
solenoid.
4.
Loose
battery
connections.
4.
Check
(+)
connection
to
starter
solenoid
and
(-)
connection
to
engine
ground
stud.
Check
battery
cable
connections.
5.
Preheat
solenoid
not
operating.
5.
Check
solenoid
"S"
terminal
for
voltage.
Start
switch
depressed,
no
starter
1.
Connection
to
solenoid
faulty.
1.
Check
connection.
engagement.
2.
Faulty
switch.
2.
Check
switch
with
ohmmeter.
3.
Faulty
solenoid.
3.
Check
that
12
volts
are
present
at
the
solenoid
connection.
4.
Loose
battery
connections.
4.
Check
battery
connections.
5.
Low
battery.
5.
Check
battery
charge
state.
START
switch
is
depressed;
panel
1.
Poor
connections
to
fuel
solenoid.
1.
Check
connections.
indications
OK;
starter
solenoid
OK
fuel
solenoid
not
functioning.
2.
Defective
fuel
solenoid.
2.
Check
that
12
volts
are
present
at
the
(+)
connection
on
the
fuel
run
solenoid.
Generator
engine
cranks,
but
does
not
1.
Faulty
fueling
system.
1.
Check
that
fuel
valves
are
open.
start,
fuel
solenoid
energized.
1a.
Switch
to
combine
house
and
start
batteries.
1
b.
Check
batteries.
1
c.
Fuel
lift
pump
at
injection
pump
may
be
clogged.
2.
Preheat
solenoid
faulty.
2.
Check
solenoid.
3.
Low
battery.
3.
Switch
to
combine
all
batteries.
3a.
Replace
batteries.
Battery
runs
down.
1.
Oil
Pressure
switch.
1.
Observe
if
panel
lights
are
activated
when
engine
is
not
running.
Test
the
oil
pressure
switch.
2.
High
resistance
leak
to
ground.
2.
Check
Wiring.
Insert
sensitive
(0
-
.25
amp)
meter
in
battery
lines.
(Do
not
start
engine.)
Remove
connections
and
replace
after
short
is
located.
3.
Low
resistance
leak.
3.
Check
all
wires
for
temperature
rise
to
locate
the
fault.
4.
Poor
battery
connections.
4.
Check
cable
connections
at
battery
for
loose
connections,
corrosion.
5.
Battery
charger
not
charging
..
5.
Check
connections,Test
battery
charger
in
control
box.
Battery
not
charging
1.
DC
charge
circuit
faulty.
1.
Pertorm
D.C.
voltage
check
of
generator
charging
circuit.
2.
Faulty
battery
charger.
2.
Replace
charger.
Generator
engine
stops.
1.
Fuel
lift
pump
failure.
1.
Fuel
lift
pump
should
make
a
distinct
ticking
sound.
Replace
pump
with
spare.
2.
Switches
and/or
wiring
loose
2.
Inspect
wiring
for
short
circuits
and
loose
connections.
or
disconnected.
Inspect
switches
for
proper
operation.
3.
Fuel
starvation.
3.
Check
fuel
supply,
fuel
valves,
fuel
lift
pump.
4.
20
Amp
circuit
breaker
tripping.
4.
Check
for
high
DC
amperage
draw
during
operation.
Ensure
breaker
is
not
overly
sensitive
to
heat
which
would
cause
tripping.
5.
Exhaust
system
is
restricted.
5.
Check
for
blockage,
collapsed
hose,
carbon
buildup
at
exhaust
elbow.
6.
Water
in
fuel.
6.
Pump
water
from
fuel
tank(s);
change
filters
and
bleed
fuel
system.
7.
Air
intake
obstruction.
7.
Check
air
intake
filter
cartridge.
Engines & GefJerators
35