Kohler 17RES Manual page 27

Problem Possible Cause
Spark plugs or
Cranks but
spark plug
does not
connections
start,
continued
Loose connection
or open circuit
Air cleaner clogged
Magnetic pickup
Incorrect controller
configuration
Ignition system
spark control or
ignition coil
Digital spark
advance (DSAI)
leads incorrectly
connected or
disconnected
No engine rotation
sensed (check for
an overcrank fault
shutdown)
Starts hard Low battery voltage Check battery voltage during
Air cleaner clogged
Fuel mixture
adjustment
incorrect
DSAI leads
incorrectly
connected or
disconnected
Spark plug(s)
Spark plug wire(s)
* ADC-RES controller only. The DC-RET controller settings cannot be adjusted in the field.
W/D = Wiring Diagram(s) (Section 7)
I/M = Generator Set Installation Manual
TP-6519 8/17
Test
Check spark plug wires and
connections.
Check spark plugs.
Check for loose or open
connection at the fuel valve (lead
70A) and at the engine spark
control module (leads IGN and
70A). Check controller/engine
wiring continuity.
Check for a dirty air cleaner
element.
Check for 1.75 volts or higher
from the magnetic pickup during
cranking. Test magnetic pickup
and check gap according to the
procedure in Section 5.9.4.
Measure the resistance across
the magnetic pickup according to
the procedure in Section 5.9.4.
Check for correct controller
configuration parameters: unit
configuration (UC) and engine
configuration (EC).
Test according to instructions in
the engine service manual.
Check DSAI leads.
Check for loose connections.
Check mag pickup. See Magnetic
pickup, above.
cranking.
Check battery charger
connections, power supply, and
operation.
Check for a dirty air cleaner
element.
Use oxygen sensor to check fuel
mixture.
Check DSAI connection.
Check spark plug condition and
gap.
Check spark plug wires and
connections.
S/S = Generator Set Specification Sheet
Engine S/M = Engine Service Manual
Corrective Action
Tighten connections. Replace
spark plug wires if damaged.
Replace or clean and regap spark
plugs.
Tighten connections.
Replace wiring if damaged.
Replace air cleaner element.
Check and replace air cleaner
element at the intervals shown in
the Service Schedule.
Tighten loose connections or
replace wiring as necessary.
Adjust magnetic pickup air gap if
necessary. Replace mag pickup if
necessary after testing.
Replace the mag pickup if the
resistance is outside of the
specified range.
Enter the correct controller
configuration parameters.
Adjust or replace components as
indicated in engine service
manual.
Connect for natural gas.
Disconnect for LP.
Tighten connections.
Replace wiring if damaged.
See Magnetic pickup, above.
Charge battery. Replace battery if
necessary.
Tighten loose connections.
Replace element.
Adjust fuel mixture.
Connect for natural gas.
Disconnect for LP.
Replace or regap spark plug(s).
Tighten connections. Replace
spark plug wires if damaged.
O/M = Generator Set Operation Manual
Section 3 Troubleshooting
Reference
O/M
Section 7
O/M
Section 5.9.4
Section 5.9.4
Section 4.5
Engine S/M
Section 5.12.4
Section 5.9.4
O/M
O/M
Section 5.12
Section 5.12.4
O/M
Engine S/M
27