Section 9.5- troubleshooting guide, Problem 1. engine will not crank – Generac 86640 User Manual
Page 94
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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