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SYMPTOM:
NO VOLTAGE OR
RESIDUAL VOLTAGE
Regulator Fuse Blown
Check fuse with ohmmeter.
Voltmeter Off
Defective Voltmeter
Incorrect Connections
Defective
Connections/Wiring
No Regulator Input
Defective Diodes, Surge
Suppressor
Voltage Regulator
Protective Shutdown
Circuits are Operating
Voltage Regulator
Inoperative
51
Replace bad fuse.
Check to be sure meter phase
selector switch is not in the off
position.
Verify proper operation of panel
meter with another meter that is
known to be accurate.
Verify generator connections.
Inspect all wiring for grounds, open
circuits & short circuits.
Measure voltage at regulator input
(PMG output)
Test generator with constant
excitation (12 volt battery test) refer
or Generator Windings
Correct problem and adjust
regulator. Refer to regulator
manual.
Adjust or replace regulator. Refer to
regulator manual.
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