Troubleshooting Guide - Generac GP Serie Manuel Du Propriétaire

4.1 TROUBLESHOOTING GUIDE

PROBLEM
Engine is running, but no AC output
is available.
Engine runs good but bogs down
when loads are connected.
Engine will not start; or starts and
runs rough.
Engine shuts down during
operation.
Engine lacks power.
Engine "hunts" or falters.
CAUSE
1. Circuit breaker is open.
2. Poor connection or defective cord set.
3. Connected device is bad.
4. Fault in generator.
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 gasoline.
4. Stale gasoline.
5. Spark plug wire not connected to spark plug.
6. Bad spark plug.
7. Water in gasoline.
8. Over-choking.
9. Low oil level.
10. Excessive rich fuel mixture.
11. Intake valve stuck open or closed.
12. Engine has lost compression.
1. Out of gasoline.
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.
Troubleshooting
CORRECTION
1. Reset circuit breaker.
2. Check and repair.
3. Connect another device that is in good condition.
4. Contact Authorized Service Facility.
1. Disconnect shorted electrical load.
2. See "Don't Overload the Generator" .
3. Contact Authorized Service Facility.
4. Contact Authorized Service Facility.
1. Turn Fuel Shut-off to 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. Put choke knob to No Choke position.
9. Fill crankcase to proper level.
10. Contact Authorized Service Facility.
11. Contact Authorized Service Facility.
12. Contact Authorized Service Facility.
1. Fill fuel tank.
2. Fill crankcase to proper level.
3. Contact Authorized Service Facility.
1. Reduce load (see "Don't Overload the Generator").
2. Clean or replace air filter.
3. Contact Authorized Service Facility.
1. Move choke to halfway position until engine runs
smoothly.
2. Contact Authorized Service Facility.
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