Troubleshooting; Troubleshootingguide - Generac Power Systems GP Series Owner's Manual

4.1 TROUBLESHOOTING GUIDE
Engineis running,but no AC output
is available.
1. Circuit breakeris open.
2. Poor connection or defective cord set.
3. Connecteddevice is bad.
4. Faultin generator.
1. Reset circuit breaker.
2. Check and repair.
3. Connect another device that is in good condition.
4. Contact AuthorizedService Facility.
Engine runs good but bogs down 1. Short circuit in a connected load. 1. Disconnect shorted electrical load.
whenloadsare connected. 2. Generatoris overloaded. 2. See"Don't Overloadthe Generator".
3. Enginespeed is too slow. 3. Contact AuthorizedService Facility.
4. Shorted generatorcircuit. 4. Contact AuthorizedService Facility.
Engine will notstart;orstartsand
runsrough.
FuelShut-off is OFF.
Dirty air filter.
Out of gasoline.
Stale gasoline.
Spark plug wire not connectedto spark plug.
1. Turn FuelShut-off ON.
2. Clean or replaceair filter.
3. Fillfuel tank.
4. Drain fuel tank and fill with fresh fuel.
5. Connect wire to spark plug.
,
2.
3.
4.
5.
6. Badspark plug.
7. Water in gasoline.
8. Overchoking.
9. Low oil level.
10. Excessiverich fuel mixture.
11. Intakevalve stuck open or closed.
12. Enginehas lost compression.
6. Replacespark plug.
7. Drain fuel tank; fill with fresh fuel.
8. Put choke knobto No Choke position.
9. Fill crankcaseto proper level.
10. ContactAuthorizedService Facility.
11. ContactAuthorizedService Facility.
12. ContactAuthorizedService Facility.
Engine shuts down during 1. Out of gasoline. 1. Fillfuel tank.
operation. 2. Low oil level. 2. Fill crankcaseto proper level.
3. Faultin engine. 3. Contact AuthorizedService Facility.
I I
Engine lacks power. 1. Load is too high. 1. Reduceload (see"Don't Overloadthe Generator").
2. Dirty air filter. 2. Clean or replaceair filter.
3. Engineneedsto be serviced. 3. Contact AuthorizedService Facility.
R
Engine "bunts" or falters. 1. Choke is openedtoo soon. 1. Move choke to halfway position until engine runs
smoothly.
2. Carburetoris running too rich or too lean. 2. Contact AuthorizedService Facility.
14