GAC6HR/HRS 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (12/13/17) — PAGE 35
TROUBLESHOOTING (GENERATOR)
Troubleshooting (Generator )
Symptom
Possible Problem
Solution
Low voltage
Engine speed too low?
Raise engine speed to rated RPM.
Low voltage, 3650 RPM (unloaded),
2500 RPM (idle)
AC voltmeter not working?
Replace Ac voltmeter.
Control box internal wiring
malfunction?
Check control box wiring.
Rotor winding malfunction?
Check or replace rotor.
Stator winding malfunction?
Check or replace stator.
Leakage breaker malfunction?
Check or replace CB1.
Full power switch malfunction?
Check full power switch and full power
switch circuit.
Voltage output too high.
Engine speed too high?
Lower engine speed to rated RPM.
Voltage output too high. Engine speed
normal 3650 RPM (unloaded), 2500
RPM (idle)
Control box internal wiring
malfunction
Check control box wiring.
Circuit breaker will not turn on "NO
LOAD"
Defective circuit breaker?
Replace circuit breaker.
Circuit breaker will not turn on "NO
LOAD"
Defective circuit breaker?
Replace circuit breaker.
Circuit breaker will turn on "LOADED"
but trips immediately.
Overload Condition?
Reduce load or replace breaker.
Load circuit is shorted?
Check load circuit for short.
Does not accelerate from low to high
"NO LOAD"
Stuck solenoid?
Check solenoid.
Bad Idle control switch?
Check or replace idle control switch.
Does not accelerate from low to high
"LOAD ACTIVE"
Idle control switch malfunction?
Check or replace idle control switch.
Idle control device malfunction?
Check or replace idle control device.
Control box interal wiring
defective?
Check control box wiring.
Does not decelerate but has
"VOLTAGE OUTPUT".
Control box wiring malfunction?
Check control box wiring, replace any
defective components.
Defective solenoid?
Check or replace solenoid.
Idle control device malfunction?
Check or replace idle control device.
