Maintenance
20
Owner’s Manual for Portable Generator
Troubleshooting
PROBLEM
CAUSE
CORRECTION
Engine is running, but AC output is
not available.
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. Reset circuit breaker.
2. Check and repair.
3. Connect another device that is in good con-
dition.
4. Contact IASD.
5. Correct ground fault and press reset button
on GFCI receptacle (if equipped).
Engine runs well at no-load, but
bogs when load is applied.
1. Short circuit in a connected load.
2. Generator is overloaded.
3. Engine speed is too slow.
4. Shorted generator circuit.
5. Dirty fuel filter.
1. Disconnect shorted electrical load.
2. See
3. Contact IASD.
4. Contact IASD.
5. Replace fuel filter.
Engine will not start; or starts and
runs rough.
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.
13. Dirty fuel filter.
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 position.
9. Fill crankcase to correct level.
10. Contact IASD.
11. Contact IASD.
12. Contact IASD.
13. Replace fuel filter.
Engine shuts down during
operation.
1. Out of fuel.
2. Low oil level.
3. Fault in engine.
4. CO PROTECT shut-off due to accumulating
carbon monoxide if a RED light blinks on the
side panel badge.
5. CO PROTECT shut-off due to a system fault
if a YELLOW light blinks on the side panel
badge.
1. Fill fuel tank.
2. Fill crankcase to correct level.
3. Contact IASD.
4. Follow all Safety Instructions and relocate
generator to an open area outside, far away
from windows, doors and vents.
5. Start to confirm YELLOW light blinks when/if
generator shuts-off. If CO PROTECT contin-
ues to fault and shut-off, contact IASD.
Engine lacks power.
1. Load is too high.
2. Dirty air filter.
3. Engine needs to be serviced.
4. Choke is partially closed.
5. Dirty fuel filter.
6. Spark arrestor clogged.
1. Reduce load (see
).
2. Clean or replace air filter.
3. Contact IASD.
4. Set choke lever to no choke position.
5. Replace fuel filter.
6. Clean spark arrestor.
Engine surges or stumbles.
1. Choke is opened too soon.
2. Carburetor is running too rich or too lean.
3. Dirty fuel filter.
1. Set choke to halfway position until engine
runs smoothly.
2. Contact IASD.
3. Replace fuel filter.
Engine starts and shuts off
immediately.
1. CO PROTECT shut-off due to accumulating
carbon monoxide if a RED light blinks on the
side panel badge.
2. CO PROTECT shut-off due to a system
fault if a YELLOW light blinks on the side
panel badge.
1. Follow all Safety Instructions and relocate
generator to an open area outside, far away
from windows, doors and vents.
2. Start to confirm YELLOW light blinks when/if
generator shuts-off. If CO PROTECT contin-
ues to fault and shut-off, contact IASD.
