Kohler 14RES Manual page 29

Problem Possible Cause
Generator Starter
set engine
does not
crank,
continued
Controller
No fuel
Cranks but
does not
start
Insufficient fuel
pressure
Fuel regulator/valve Check regulator/valve operation.
Spark plugs or
spark plug
connections
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)
W/D = Wiring Diagram(s) (Section 7)
I/M = Generator Set Installation Manual
* RDC controller settings can be checked and adjusted using the controller user interface or using a personal computer running SiteTech
software. DC controller settings can only be changed using SiteTech.
TP-6735 7/17
Test
Check starter connections.
Troubleshoot the starter. See the
engine service manual for
instructions.
Check the controller settings.
Test the controller as described in
Section 3.6.
Verify that manual fuel valve is
open.
Check fuel supply tank (LP).
Check fuel pressure to the
generator set. Verify adequate
fuel pressure and pipe size for the
generator set plus all other gas
appliances.
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 3.0 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 engine
configuration parameter (EC).
Test according to instructions in
the engine service manual.
Check DSAI leads.
Check for loose connections.
Check mag pickup. See magnetic
pickup, above.
S/S = Generator Set Specification Sheet
Engine S/M = Engine Service Manual
Corrective Action
Tighten connections.
Replace wiring if damaged.
Rebuild or replace starter.
Adjust controller settings.
See Section 3.6.
Open (turn on) manual fuel valve.
Contact fuel supplier to add fuel to
fuel supply tank (LP).
Contact fuel supplier to replace
fuel supply lines with larger pipe
and replace gas meter if fuel
pressure is insufficient.
Check regulator/valve operation.
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 mag pickup if the
resistance is too high (open
circuit) or too low (short circuit).
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.
O/M = Generator Set Operation Manual
Section 3 Troubleshooting
Reference
Section 1.7
Section 7
Engine S/M
Section 4.10
Section 3.6
—
Section 5.11.3
Section 5.11
Section 4
O/M
Section 7
O/M
Section 5.9.4
Section 5.9.4
Section 4.10
Engine S/M
Section 5.11.2
Section 5.9.4
29