Troubleshooting – Generac Power Systems 0940-1 User Manual
Page 39
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TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSES
REMEDY
Engine won't crank.
1.
15 amp fuse is biown.
1.
Replace 15 amp fuse.
2.
Loose corroded or defective
2.
Tighten, clean or replace
battery cables.
as necessary.
3.
Defective engine Start/Stop switch.
3.
Replace Start/Stop switch.
4.
Defective starter contactor.
4.
Replace contactor.
5.
Defective starter motor.
5.
Replace starter motor.
6.
Low or defective Battery
6.
Charge or replace battery.
Engine cranks but won't start.
1.
Out of fuel.
1.
Replenish fuel.
2.
Fuel pump is defective (Gasoline), OR,
2.
Replace defective fuel pump
fuel solenoid is defective (LP).
or fuel solenoid.
3.
Open Wire #14 from Eng. Control Bd.
3.
Reconnect wire.
4.
Engine is flooded.
4.
Waif 5-10 min. before trying.
5.
Spark plug defective.
5.
Clean, regap or replace plug.
Engine starts hard, runs rough.
1.
Air cleaner plugged or damaged.
1.
Clean or replace as needed.
2.
Defective spark plug.
2.
Clean, regap or replace plug.
Engine starts, shuts down
1.
Engine oil is low.
1.
Check oil; add as needed.
when Start/Stop switch is
2.
Engine is overheated.
2.
Check adequate ventilation.
reieased.
3.
Defective Low Oil Pressure System
3.
Have serviced/replaced.
4.
Defective Control Board
4.
Have board serviced/replaced.
5.
Defective Computer Control Board.
5.
Have board serviced/replaced.
Start/Stop switch at Stop,
1.
Defective Start/Stop switch
1.
Replace switch.
engine continues to run.
2.
Open/disconnected wire #18 between
Start/Stop switch and Control
2.
Reconnect or close wire.
3.
Open/disconnected wire #0 between
Start/Stop switch & Control Bd.
3.
Reconnect or close wire.
4.
Defective Control Board
4.
Replace board.
No output from generator.
1.
Check circuit breaker.
1.
Reset to ON or CLOSED.
2.
Check vehicle circuit breaker & fuses.
2.
Reset and replace if necessary.
3.
Transfer sw. set to NORMAL position.
3.
Set to GENERATOR position.
4.
Generator internal failure.
4.
Take generator to an
Authorized Generac facility.
5.
Inverter defective.
5.
Take generator to an
Authorized Generac facility.
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