Troubleshooting – Generac Power Systems 00862-1 User Manual
Page 34
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TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSES
REMEDY
Engine won't crank.
1.
Fuse is blown.
1.
Replace fuse.
2.
Loose corroded or detective
battery cables.
2.
Tighten, clean or replace
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 tank.
2.
Fuel pump is defective.
2.
Replace fuel pump.
3.
Open Wire #14 from Eng. Control Bd.
3.
Reconnect wire.
4.
Engine is flooded.
4.
Wait 5-10 min. before frying.
5.
Spark plug defective.
5.
Clean, regap or replace plug.
6.
Fuel line shut-off closed.
6.
Open fuel line shut-off.
7.
Plugged fuel filter.
7.
Clean or replace fuel filter.
Engine starts hard, runs rough,
1.
Air cleaner plugged or damaged.
1.
Clean or replace as needed.
will not pull full load.
2.
Defective spark plug.
2.
Clean, regap or replace plug.
3.
Spark plug boot is loose.
3.
Fully install boot onto spark plug.
Engine starts, shuts down
1.
Engine oil is low.
T.
Check oil; add as needed.
when Start/Stop switch is
released.
2.
Engine is overheated.
2.
Check air flow openings are
adequate.
3.
Defective Low Oil Pressure System.
3.
Have 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 Engine Control.
2.
Reconnect or close wire.
3.
Open/disconnected wire #0 between
Start/Stop switch & Engine Control Bd.
3.
Reconnect or close wire.
4.
Defective Engine Control Board.
4.
Replace board.
No AC 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.
Start switch not held long enough
5.
Stop, then restart engine
to flash the field.
(Hold Start switch for at least 2
seconds.)
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