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4.1
TROUBLESHOOTING GUIDE
PROBLEM
Engine won't crank.
Engine cranks, won't start.
Engine starts hard, runs rough.
Engine starts, then shuts down.
No AC output voltage.
PRIMEPACT 50 and 70 (50Hz) Recreational Vehicle Generators
CAUSE
1.
15 amp fuse blown.
2.
Loose, or corroded or defective
battery cable(s).
3.
Battery is discharged or defective.
4.
Defective starter contactor.
5.
Defective starter motor.
6.
Defective Start/Stop switch
7.
Defective Engine Control Board
1.
Out of fuel.
2.
Fuel shutoff valve is closed.
3.
Fuel pump not operating.
4.
Automatic choke not operating properly.
5.
Engine is flooded.
6.
Fuel filter is clogged.
7.
Engine spark plugs defective.
8.
Bad ignition magneto on engine.
9.
Bad carburetor.
10. Dirty air cleaner.
1.
Dirty engine air cleaner.
2.
Automatic Choke sticking.
3.
Defective spark plugs.
4.
Defective ignition magneto.
1.
Engine oil level is low.
2.
Bad low oil pressure switch.
3.
Defective High Temp Switch
4.
Water in fuel.
1.
Main breaker(s) open.
2.
Transfer switch (if so equipped) is
set to wrong position.
3.
Failure in vehicle electrical system.
4.
Generator component failure.
Section 4 – Troubleshooting
CORRECTION
1.
Replace blown fuse.
2.
Tighten, clean or replace,
as necessary.
3.
Recharge or replace battery.
4.
Replace starter contactor.
5.
Replace starter motor.
6.
Replace switch
7.
Contact an authorized service dealer.
1.
Refill fuel tank.
2.
Open fuel shutoff valve(s).
3.
Repair or replace pump.
4.
Repair, replace or adjust.
5.
Wait 5-10 minutes; try again.
6.
Replace filter if clogged.
7.
Clean, regap or replace as needed.
8.
Replace if defective.
9.
Adjust, repair or replace.
10. Clean or replace as needed.
1.
Clean or replace as needed.
2.
Free choke linkage as needed.
3.
Clean, regap or replace.
4.
Replace it if defective.
1.
Add oil as needed.
2.
Replace, if bad.
3.
Replace Switch, if bad.
4.
Drain fuel tank and refill.
1.
Close main breaker(s).
2.
Reset transfer switch.
3.
See vehicle manual.
4.
Contact an authorized service facility.
Generac
®
Power Systems, Inc. 35
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