Troubleshooting - Generac Power Systems 6500XL 09779-2 Owner's Manual

Generac Portable Products 6500XL Extended Life Generator
TROUBLESHOOTING
Problem
Engine is running, but
no AC output is
available.
Engine runs good but
bogs clown when loads
are connected.
Cause
I. Circuit breaker is open.
2. Poor connection or defective cord set.
3. Connected device is bad.
4. Fault in generator.
I. Short circuit in a connected load.
2. Generator is overloaded.
3. Enginespeed istoo slow.
4. Shortedgenerator circuit.
I. Run/Stop switch set to "Stop".
2. Dirty air cleaner.
3. Out of gasoline.
4. Stalegasoline.
5. Spark plug wire not connected to spark
Solution
I. Reset circuit breaker.
2. Check and repair.
3. Connect another device that is in good
condition.
4. Contact Generac service facility.
I. Disconnect shorted electricalload.
2. See "Don't Overload the Generator"
on page 10.
3. Contact Generac service facility.
4. Contact Generac service facility.
I. Set switch to "Run".
2. Clean or replace air cleaner.
3. Fill fuel tank.
4. Drain gas tank and fill with fresh fuel.
5. Connect wire to spark
plug.
Engine will not start; or
starts and runs rough.
plug.
6. Bad spark plug.
7. Waterin gasoline.
8. Overchoking.
9. Low oil level.
10.
II.
12.
Excessively rich fuel mixture.
Intake valve stuck open or closed.
Engine has lost compression.
6. Replacespark plug.
7. Drain gastank; fill with fresh fuel.
8. Put choke lever to "No Choke"
position.
9. Fill crankcase to proper level.
10. Contact Generac service facility.
I I. Contact Generac service facility.
12. Contact Generac service facility.
Engine shuts down
during operation.
Engine lacks power.
Engine "hunts" or
falters.
I. Out of gasoline.
2. Low oil level
3. Fault in engine.
I. Loadis too high.
2. Dirty air filter.
3. Engine needs to be serviced.
I. Choke is opened too soon.
2.
Carburetor is running too rich or too
lean.
I. Fill fuel tank.
2. Fill crankcase to proper level.
3. Contact Generac service facility.
I. See"Don't Overload the Generator"
on page 10.
2. Replace air filter.
3. Contact Generac service facility.
I. Move choke to halfway position till
engine runs smoothly.
2. Contact Generac service facility.
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