
August 2016
5 - 4
AL4 • AL4000
Part No. 218567
Section 5 • Troubleshooting
TROUBLESHOOTING
Engine runs but battery voltage
is low
Faulty alternator
Inspect and repair as needed
Engine runs but lights will not
operate
Circuit breaker has tripped
Reset circuit breaker
Loose wiring connections
Inspect and repair as needed
Faulty generator
Inspect and repair as needed
Unusual noise from the generator
Generator has a faulty bearing or
faulty fan blade
Inspect and repair as needed
Lamp light output low
Dirty light fi xture
Clean light fi xture
Possible Cause
Solution
Problem
Generator produces full voltage
at no load OR voltage drops at
full load
Loose or broken lead wires
Inspect lead wires and
connections for broken wires and
loose connections
Rotor open or shorted
Measure resistance between
leads
Stator grounded or shorted
Contact the Genie Service Dept.
Generator voltage too high
High engine speed
Adjust the rpm
Refer to Section 2,
Specifi cations
Generator produces no voltage at
no load or at full load
Faulty surge suppressor
Disconnect suppressor from
circuit. If there is an obvious
increase in voltage, replace the
suppressor.
Faulty capacitor
Replace
Loss of residual magnetism
Flash the rotor
Open winding
Replace the generator
Light heads are fl ashing on-off
Batteries low
Charge batteries
Light head will not illuminate
End of life
Replace
Short in power supply cable
Inspect and repair as needed
Short in power supply cable
Inspect and repair as needed
Power supply cable connector
faulty OR poor connection
Inspect and repair as needed
Power supply cable connector
faulty
Inspect and repair as needed
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