Problem Cause Solution
Engine is running, but no AC
output is available.
1.
Circuit breaker is open.
2.
Poor connection or defective cord
set.
3.
Connected device is bad.
4.
Fault in generator.
1.
Reset circuit breaker.
2.
Check and repair.
3.
Connect another device that is in
good condition.
4.
Contact Generac service facility.
Engine runs good but bogs
down when loads are
connected.
1.
Short circuit in a connected load.
2.
Generator is overloaded.
3.
Engine speed is too slow.
4.
Shorted generator circuit.
1.
Disconnect shorted electrical load.
2.
See “Don’t Overload the
Generator” on page 12.
3.
Contact Generac service facility.
4.
Contact Generac service facility.
Engine will not start; or
starts and runs rough.
1.
Run/Stop switch set to “Stop”.
2.
Dirty air cleaner.
3.
Out of gasoline.
4.
Stale gasoline.
5.
Spark plug wire not connected to
spark plug.
6.
Bad spark plug.
7.
Water in gasoline.
8.
Overchoking.
9.
Low oil level.
10.
Excessively rich fuel mixture.
11.
Intake valve stuck open or closed.
12.
Engine has lost compression.
13.
Battery is dead.
1.
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.
6.
Replace spark plug.
7.
Drain gas tank; fill with fresh fuel.
8.
Put choke lever to “no choke”
position.
9.
Fill crankcase to proper level.
10.
Contact Generac service facility.
11.
Contact Generac service facility.
12.
Contact Generac service facility.
13.
Recharge or replace battery.
Engine shuts down during
operation.
1.
Out of gasoline.
2.
Low oil level.
3.
Fault in engine.
1.
Fill fuel tank.
2.
Fill crankcase to proper level.
3.
Contact Generac service facility.
Engine lacks power.
1.
Load is too high.
2.
Dirty air filter.
3.
Engine needs to be serviced.
1.
See “Don’t Overload the
Generator” on page 12.
2.
Replace air filter.
3.
Contact Generac service facility.
Engine “hunts” or falters.
1.
Choke is opened too soon.
2.
Carburetor is running too rich or
too lean.
1.
Move choke to halfway position till
engine runs smoothly.
2.
Contact Generac service facility.
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