Generac Portable Products MC10000 Extended Life Generator
13
Problem
Cause
Correction
Engine is running, but no
1. One of the circuit breakers is open.
1. Reset circuit breaker.
AC output is available.
2. Fault in generator.
2. Contact Generac service facility.
3. Poor connection or defective
3. Check and repair.
cord set.
4. Connected device is bad.
4. Connect another device that is in
good condition.
Engine runs good at no-load but bogs 1. Short circuit in a connected load.
1. Disconnect shorted electrical
down" when loads are connected.
load.
2. Engine speed is too slow.
2. Contact Generac service facility.
3. Generator is overloaded.
3. See Don't Overload the Generator,
page 11.
4. Shorted generator circuit.
4. Contact Generac service facility.
Engine will not start; or starts
1. Run/Stop Switch set to STOP.
1. Set switch to RUN.
and runs rough.
2. Dirty air cleaner.
2. Clean or replace air cleaner.
3. Out of gasoline.
3. Fill fuel tank.
4. Stale gasoline.
4. Drain gas tank; fill with fresh fuel.
5. Spark plug wire not connected
5. Connect wire to spark plug.
to spark plug.
6. Bad spark plug.
6. Replace spark plug.
7. Water in gasoline.
7. Drain gas tank; fill with fresh fuel.
8. Overchoking.
8. Open choke fully and crank engine.
9. Excessively rich fuel mixture.
9. Contact Generac service facility.
10.Intake valve stuck open or closed.
10. Contact Generac service facility.
11.Engine compression lost.
11. Contact Generac service facility.
12.Failed battery.
12. Replace battery.
Engine shuts down during operation.
1. Out of gasoline.
1. Fill fuel tank.
2. Low oil level.
2. Fill crankcase to proper level.
Engine lacks power.
1. Load is too high.
1. See Don't Overload the Generator,
page 11.
2. Dirty air filter.
2. Replace air filter.
Engine hunts or falters.
1. Choke is opened too soon.
1. Move choke to halfway position until
engine runs smoothly.
2. Carburetor is running too rich
2. Contact Generac service facility.
or too lean.
TROUBLESHOOTING
