TROUBLESHOOTING
Symptom
Cause
Action
Residual Voltage -No
Output
Residual voltage at regulator power
input wires 3 & 4 below 10 V ac.
Acceleration time to rated speed too
long.
Field leads Fl, F2 not connected.
Power input leads not connected.
Blown or missing fuse.
Defective regulator.
Defective generator.
Check wiring diagram for
proper connections.
Flash generator field. Refer to
field flashing section in
generator manual.
Reduce acceleration time.
Interrupt power input to
regulator after achieving rated
speed.
Connect field leads Fl, F2.
Connect power-input leads 3,4.
Replace fuse.
Replace regulator.
Consult generator manual.
Output Voltage Low
Incorrect connections.
Voltages adjust turned down.
Remote voltage adjust is turned
down.
Defective regulator.
Check wiring diagram for
proper connections.
Rotate voltages adjust CW until
desired voltage is reached.
Rotate remote voltages adjust
CW until desired voltage is
reached.
Replace regulator.
Output Voltage High
Voltages adjust turned too high.
Remote voltage adjust is turned too
high.
Rotate voltages adjust CCW
until desired voltage is reached.
Rotate remote voltages adjust
CCW until desired voltage is
reached.
Output Voltage High -
No Adjustment
Defective regulator.
Replace regulator.
Remote Voltage Adjust
Operates Backwards
Voltages adjust wire backwards.
Reverse the wiring of the
remote voltage adjust.
Generator Output
Voltage Hunting
Stability adjusts not set properly.
Rotate the stability adjusts in a
CW direction until hunting
stops.
Poor Regulation
Defective regulator.
Replace regulator.
