Section 6

TROUBLESHOOTING FLOWCHARTS

Problem 2 – Generator Produces Zero Voltage or ResidualVoltage (5-12VAC)

(continued)

TEST 10 –

CHECK ROTOR

ASSEMBLY

TEST ROTOR INSULATION, PAGE 14

 

 

 

 

 

 

TEST 4 – PERFORM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIXED EXCITATION TEST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E

 

/ ROTOR AMP DRAW

 

 

 

 

 

 

 

CHECK VOM FUSES –

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REPLACE FUSES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VERIFY AMP METER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G

 

 

 

 

 

 

– THEN RE-TEST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FUNCTIONS

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(PERFORM BOTH TEST 7 & 8)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BAD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEST 6 – TEST

 

 

TEST 7 – CHECK

 

 

 

 

 

 

 

 

 

REPAIR

 

 

 

 

 

 

 

 

 

 

 

 

EITHER OR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STATOR DPE

 

 

SENSING LEADS /

 

 

 

BOTH BAD

 

 

 

OR

 

 

 

 

 

 

 

 

 

 

 

WINDING

 

 

POWER WINDINGS

 

 

 

 

 

 

REPLACE

 

 

 

REPAIR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REPLACE

 

 

 

 

 

 

GOOD

 

 

 

 

 

GOOD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INSULATION

 

 

 

 

 

 

 

 

 

 

BAD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESISTANCE

 

 

BAD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEST, PAGE 13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Problem 3 – Excessive Voltage/Frequency Droop When Load is Applied

(Underspeed Warning – 4 Flashes on SW1 LED)

TEST 12 – CHECK LOAD VOLTAGE & FREQUENCY

GOOD

END TEST

BAD

TEST 2 – CHECK STEPPER MOTOR CONTROL

TEST 13 – CHECK

 

 

 

 

 

 

LOAD WATTS &

 

 

 

 

NOT OVERLOADED

 

AMPERAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OVERLOADED

 

 

 

REDUCE LOAD

 

 

 

 

 

 

 

 

 

 

 

 

 

REPLACE

GOOD PRINTED CIRCUIT GO TO PROBLEM 8 BOARD

Page 27

Page 29
Image 29
Generac Power Systems 5410, 5412, 5411, 5413, 5415, 5414 manual Troubleshooting Flowcharts

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