Generac Power Systems 53187 User Manual
Page 132
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SECTION 5.8
TROUBLESHOOTING FLOW CHARTS
r
NO
i
REPLENISH
FUEL SUPPLY
1
PARTS
ENGINE ELECTRICAL SYSTEM
Problem 2- Engine Cranks But Will Not Start (All Types)
TEST 19-CHECK
ENGINE FUEL &
MECHANICAL
SYSTEMS
IS THE
FUEL
SUPPLY
ADEQUATE?
— YES-^
TEST 16-CHECK
WIRE 14
VOLTAGE
M O.K.—
TEST 17-TEST
FUEL
SOLENOID
..O.K.»^
BAD
i
REPLACE ENGINE
CONTROL CIRCUIT
BOARD
BAD
i
REPLACE BAD
SOLENOID
IF FUEL PUMP CHECKS GOODi
REPAIR ENGINE SYSTEMS AS NECESSARY
TEST 18-TEST
FUEL PUMP
BAD
i
REPLACE BAD
PUMP
Problem 3- Engine Cranks, Starts, Shuts Down When Start/Stop Switch is Released
(All Types)
BAD
i
REPLACE BAD RELAY
•TEST 20-TEST
CONTROL
RELAY (CR2)
i.i»O.K.>-i^
TEST 21-TEST
ENGINE
CONTROL
CIRCUIT
—^O.K.«^
TEST 22-TEST
LOW OIL
PRESSURE
SWITCH (LOS)
^«O.K.-^
BOARD
BAD
i
REPLACE BAD
CIRCUIT BOARD
b
I
d
I
REPLACE BAD
SWITCH
TEST 23-TEST
HIGH
COOLANT
TEMPERATURE!
SWITCH
3AD
i
REPLACE BAD
SWITCH
• Test 20 applies only to units with a Type 1 DC control system.
PAGE 5.8-4
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