Troubleshooting - Generac Portable Products GP series Owner's Manual

Troubleshooting

PROBLEM
Engine is running, but
AC output is not
available.
Engine runs well at
no-load, but bogs when
load is applied.
Engine will not start; or
starts and runs rough.
Engine shuts down
during operation.
Engine lacks power.
Engine surges or
stumbles.
Owner's Manual for Portable Generator
CAUSE
1. Circuit breaker OPEN.
2. Poor connection or defective
cord set.
3. Connected device is bad.
4. Fault in generator.
5. GFCI receptacle is OPEN (if
equipped).
1. Short circuit in a connected
load.
2. Generator is overloaded.
3. Engine speed is too slow.
4. Shorted generator circuit.
1. Fuel shut-off is OFF.
2. Dirty air filter.
3. Out of fuel.
4. Stale fuel.
5. Spark plug wire not connected
to spark plug.
6. Bad spark plug.
7. Water in fuel.
8. Overchoking.
9. Low oil level.
10. Excessive rich fuel mixture.
11. Intake valve stuck open or
closed.
12. Engine lost compression.
1. Out of fuel.
2. Low oil level.
3. Fault in engine.
1. Load is too high.
2. Dirty air filter.
3. Engine needs to be serviced.
1. Choke is opened too soon.
2. Carburetor is running too rich
or too lean.
CORRECTION
1. Reset circuit breaker.
2. Check and repair.
3. Connect another device that is
in good condition.
4. Contact IASD.
5. Correct ground fault and press
reset button on GFCI recepta-
cle (if equipped).
1. Disconnect shorted electrical
load.
Know Generator Limits
2. See
3. Contact IASD.
4. Contact IASD.
1. Turn fuel shut-off ON.
2. Clean or replace air filter.
3. Fill fuel tank.
4. Drain fuel tank and fill with
fresh fuel.
5. Connect wire to spark plug.
6. Replace spark plug.
7. Drain fuel tank; fill with fresh
fuel.
8. Set choke to no choke posi-
tion.
9. Fill crankcase to correct level.
10. Contact IASD.
11. Contact IASD.
12. Contact IASD.
1. Fill fuel tank.
2. Fill crankcase to correct level.
3. Contact IASD.
1. Reduce load (see
erator Limits
).
2. Clean or replace air filter.
3. Contact IASD.
1. Set choke to halfway position
until engine runs smoothly.
2. Contact IASD.
.
Know Gen-
19