page 44 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
trOuBLEShOOtinG (GEnEratOr)
Troubleshooting (generator)
Symptom
possible problem
Solution
No Voltage Output
AC Voltmeter defective?
Check output voltage using a voltmeter.
Is wiring connection loose?
Check wiring and repair.
Is voltage regulator defective?
Replace if necessary.
Defective Rotating Rectifier?
Check and replace.
Defective Exciter Field?
Check and replace.
Low Voltage Output
Is engine speed correct?
Turn engine throttle lever to “High”.
Is wiring connections loose?
Check wiring and repair.
Defective AVR?
Replace if necessary.
High Voltage Output
Is wiring connections loose?
Check wiring and repair.
Defective AVR?
Replace if necessary.
Circuit Breaker Tripped
Short Circuit in load?
Check load and repair.
Over current?
Confirm load requirements and reduce.
Defective circuit breaker?
Check and replace.
Over current Relay actuated?
Confirm load requirement and replace.