Generac 86640 - Manual (Page 94)

Section 9.5- TROUBLESHOOTING GUIDE
Problem 1. Engine Will Not Crank
TEST 1- CHECK
10 AMP CIRCUIT
BREAKER
POSITION CLOSED hhh ^
TEST 2-CHECK
VOLTAGE AT
STARTER
CONTACTOR
— GOOD ^
TEST 3-CHECK
VOLTAGE AT
STARTER
CONTACTOR
TERMINAL
o 1 1
CABLE
1 bHMiNAL
OPEN
i
BAD ■ W
/
V
I BAD.
GOOD BUT WONT CRANK
CLOSE CIRCUIT
BREAKER
TEST 7- CHECK
STARTER
MOTOR
BAD BAD
CLEAN OR REPLACE REPAIR OR REPLACE
TEST 4-CHECK
BATTERY
CABLES IGOOD.
TEST 5-CHECK
BATTERY
CLEAN OR REPLACE
BAD
I
RECHARGE OR REPLACE
TEST 8- CHECK VOLTS O.K. TEST 9-CHECK REPLACE
WIRE 56 VOLTS mmm NOW BUT i ^ h ^- STARTER ^HGOOCtai^ STARTER
AT STARTER NOT IN CONTACTOR CONTACTOR
CONTACTOR TEST3 GROUND
NO GOOD BAD
I
REPAIR OR REPLACE
I TEST 10-CHECK
WIRE 56 GOOD.
TEST 11-TEST
10 AMP
BREAKER
BAD
I
BAD
L.
iGOO
REPAIR,
RECONNECT
OR REPLACE
REPLACE
BAD
I
REPLACE
TEST 12-TEST
START-STOP
SWITCH
-T
__ I
iGOOC^
TEST 13-CHECK POWER SUPPLY
TO CIRCUIT BOARD, IF GOOD
REPLACE ENGINE CONTROL
CIRCUIT BOARD
Page 9.5-1