Generac Power Systems 9344-1 - Manual (Page 15)

TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSES REMEDY
Engine won’t crank. 1. 10 amp circuit breaker tripped.
2. 14 amp fuse blown.
3. Loose corroded or defective
battery cables.
4. Defective engine Start/Stop switch.
5. Defective starter contactor.
6. Defective starter motor.
1. Reset circuit breaker
2. Replace fuse.
3. Tighten dean or replace
as necessary.
4. Replace Start/Stop switch.
5. Replace contactor.
6. Replace starter motor.
Engine cranks
but
won't start.
1
. Vehicle fuel shutoff valve is closed.
2. Out of fuel.
3. Fuel solenoid (FS) is defectcive
4. Fuel pump (FP) is defective.
5. Open Wire #14 from Engine Control C.B.
6. Clogged fuel filter or fuel line.
7. Engine mechanical parts failure.
8. Spark plugs defective.
1. Open valve.
2. Replenish fuel tank.
3. Refplace solenoid.
4. Repair or replace fuel pump.
5. Reconnecfwire.
6. Replace if clogged.
7. Repair or replace parts.
8. Clean, regap or replace plugs.
Engine starts hard, runs rough. 1. Flame arrestor (air cleaner)
plugged
or
damaged.
2. Defective fuel pump.
3. Plugged fuel filter or fuel line.
4. Water in fuel.
1. Clean or replace as needed.
2. Replace or repair fuel pump.
3. Replace filter; unclog
fuel line.
4. Drain tank and refill.
Engine starts, shuts down
when Start/Stop switch is
released.
1. Engine oil level is low.
2. Engine is overheated.
3. Defective Low Oil Pressure Switch
4. Defective Coolant Temperature Switch
5.
Defective Engine Controller
circuit
board.
1.
Check oil and add oil as
needed,
2.
Check cooling
system for leaks.
3. Replace switch.
4.
Replace
switch
5. Replace circuit board.
Start/Stop Switch at STOP,
engine continues to run
1. Defective Start/Stop switch.
2. Open/disconnected wire #18 between
Start/Stop switch & Engine Controller C.B.
3. Open/disconnected wire #0 between
Start/Stop switch & Engine Controller C.B.
4. Defective Engine Controller
circuit
board
1. Replace switch.
2.
Reconneci/close wire.
3. Reconnect/close wire.
4. Replace board.
No a-c output from generator. 1. Check 15-amp circuit breaker.
2. Check vehicle circuit breaker & fuses.
3. Transfer switch set to NORMAL position
4. Generator internal failure.
1. Reset to ON or CLOSED.
2. Reset and replace, if necessary,
3. Set to GENERATOR position.
4. Take generator to Authorized
Generac service facility.
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