Troubleshooting - Generac Power Systems 00843-0 Owner's Manual

TROUBLESHOOTING
PROBLEM POSSIBLE CAUSES REMEDY
Engine won't crank. 1. 15 amp fuse is blown
2. Loose corroded or defective
battery cables.
3. Defective engine Start/Stop switch.
4. Defective starter contactor.
5. Defective starter motor.
6. Low Battery Voltage.
1. Replace 15 amp fuse
2. Tighten, clean or replace
as necessary.
3. Replace Start/Stop switch.
4. Replace contactor.
5. Replace starter motor.
6. Charge or replace battery.
Engine cranks but won't start. 1. Out of fuel.
2. Fuel pump is defective.
3. Open Wire #14 from Eng. Control Bd.
4. Engine is flooded.
5. Spark plugs defective.
1. Replenish fuel.
2. Replace fuel pump.
3. Reconnect wire.
4. Wait 5-10 min. before trying.
5. Clean, regap or replace plugs.
Engine starts hard, runs rough. 1. Air cleaner plugged or damaged
2. Defective spark plugs.
1
. Clean or replace as needed.
2. Clean, regap or replace plugs.
Engine starts, shuts down
when Start/Stop switch is
released.
1. Engine oil is low.
2. Engine is overheated.
3. Defective Low Oil Pressure System
4. Defective Engine Control Board
1. Check oil; add as needed.
2. Check adequate ventilation.
3. Have serviced/replaced.
4. Have board serviced/replaced.
Start/Stop switch at Stop,
engine continues to run.
1. Defective Start/Stop switch
2. Open/disconnected wire #18 between
Start/Stop switch and Engine Control
3. Open/disconnected wire #0 between
Start/Stop switch & Engine Control Bd.
4. Defective Engine Control Board
1. Replace switch.
2. Reconnect or close wire.
3. Reconnect or close wire.
4. Replace board.
No AC output from generator. 1. Check circuit breaker.
2. Check vehicle circuit breaker & fuses.
3. Generator internal failure
1. Reset to ON or CLOSED.
2. Reset and replace if necessary.
3. Take generator to an
Authorized Generac facility.
15