Generac Power Systems 8 kW LP - Manual (Page 120)

VERIFY UTILITY
SOURCE IS “OFF”*
TEST 56 – CHECK
POSITION OF
AUTO-OFF-MANUAL
SWITCH
TEST 58 – TEST
AUTO-OFF-MANUAL
SWITCH
TEST 59 – CHECK
AUTO OPERATION
OF CONTROLLER
TEST 57 – TRY A
MANUAL START
ON
OFF
SWITCH IS “OFF”
SWITCH IS
IN “AUTO”
ENGINE DOES
NOT CRANK ENGINE
CRANKS
BAD
BAD
SET TO “AUTO” -
RETEST
TURN “OFF” -
RETEST
GO TO PROBLEM 16
REPLACE CONTROLLER
ASSEMBLY
REPLACE CONTROLLER
ASSEMBLY
REPLACE CONTROLLER
ASSEMBLY
Problem 15 – Engine Will Not Crank When Utility Power Source Fails
*8 kW system ready
light will be flashing
8 kW
10 kW - 20 kW
RECHARGE /
REPLACE
NOTE: If a starting problem is encountered,
the engine itself should be thoroughly
checked to eliminate it as the cause of starting
difficulty. It is a good practice to check the
engine for freedom of rotation by removing the
spark plugs and turning the crankshaft over
slowly by hand, to be sure it rotates freely.
WA R N I N G : D O N OT R OTAT E
ENGINE WITH ELECTRIC STARTER
WITH SPARK PLUGS REMOVED.
ARCING AT THE PLUG ENDS MAY
IGNITE THE LP OR NG VAPOR
EXITING THE SPARK PLUG HOLE.
TEST 61 – CHECK
BATTERY
TEST 60 – CHECK
7.5 AMP FUSE
TEST 59 – TEST
AUTO-OFF-MANUAL
SWITCH
TEST 65 – TEST
STARTER MOTOR
TEST 62 – CHECK
WIRE 56 VOLTAGE
TEST 63 – CHECK
STARTER
CONTACTOR RELAY
(V-TWIN ONLY)
TEST 64 –
CHECK STARTER
CONTACTOR
BAD BAD
BAD
BAD BAD
BAD
GOOD
GOOD
GOOD
GOOD
GOOD GOOD
REPLACE
REPLACE
REPLACE
Problem 16 – Engine Will Not Crank When AUTO-OFF-MANUAL Switch is Set to “MANUAL”

*8 kW - battery led should be off
REPLACE
CONTROLLER
ASSEMBLY
8 kW
10 kW - 20 kW
BAD
Page 118
Part 4 DC CONTROL
sEctioN 4.3
trouBlEsHootiNG floW cHarts