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Problem
Battery will not charge
Battery will not charge
Starter does not work
Starter does not work
correctly
correctly
Starter cranks slowly
Problem
No AC output
No AC output
Low output or
excessive drop in
excessive drop in
voltage
Engine in poor
condition
4-4 Troubleshooting
Electrical System
Possible Cause
Loose or corroded connections
Sulfated or worn-out battery
Defective alternator
Loose or defective alternator belt
Loose or corroded connections
Low battery output
Defective starter solenoid
Defective starter switch
Defective wiring
Low battery output
Too heavy viscosity lube oil
Loose or corroded wiring
High starter current draw
Generator
Possible Cause
AC circuit breaker(s) in OFF position
No DC power to controller
Fuse blown
AC circuit breaker tripping because of overload
on generator set
Short circuit in vehicle circuit causing breaker to
trip
General malfunction such as faulty component
or other internal fault
Engine speed too low
Generator overloaded
Corrective Action
Clean and tighten connection
Check electrolyte level and specific gravity
(batteries with filler caps only)
Replace alternator
Adjust belt tension or replace belt
Clean and tighten connection
Check electrolyte level and specific gravity
(batteries with filler caps only)
Replace starter solenoid
Replace starter switch
Check wiring
Check electrolyte level and specific gravity
(batteries with filler caps only)
Use correct viscosity (see Oil Selection)
Clean and tighten loose connections
Rebuild or replace starter
Corrective Action
Reset to ON position
Check battery connections
Replace fuse
Reduce load (see Wattage Requirements)
Reset. If breaker trips repeatedly, stop
generator set and contact authorized service
distributor/dealer
See authorized service distributor/dealer
See authorized service distributor/dealer
Reduce load
If routine services are performed and condition
persists, see an authorized service
distributor/dealer
TP-5605 4/97
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