Kohler 14RES

TP-6735 7/17 29Section 3 Troubleshooting
Problem ReferenceCorrective ActionTestPossible Cause
Generator
set engine
does not
crank,
continued
Starter
Check starter connections. Tighten connections.
Replace wiring if damaged.
Section 1.7
Section 7
Troubleshoot the starter. See the
engine service manual for
instructions.
Rebuild or replace starter. Engine S/M
Controller
Check the controller settings. Adjust controller settings. Section 4.10
Test the controller as described in
Section 3.6.
See Section 3.6. Section 3.6
Cranks but
does not
start
No fuel Verify that manual fuel valve is
open.
Check fuel supply tank (LP).
Open (turn on) manual fuel valve.
Contact fuel supplier to add fuel to
fuel supply tank (LP).
—
Insufficient fuel
pressure
Check fuel pressure to the
generator set. Verify adequate
fuel pressure and pipe size for the
generator set plus all other gas
appliances.
Contact fuel supplier to replace
fuel supply lines with larger pipe
and replace gas meter if fuel
pressure is insufficient.
Section 5.11.3
Fuel regulator/valve Check regulator/valve operation. Check regulator/valve operation. Section 5.11
Section 4
Spark plugs or
spark plug
connections
Check spark plug wires and
connections.
Check spark plugs.
Tighten connections. Replace
spark plug wires if damaged.
Replace or clean and regap spark
plugs.
O/M
Loose connection
or open circuit
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.
Tighten connections.
Replace wiring if damaged.
Section 7
Air cleaner clogged Check for a dirty air cleaner
element.
Replace air cleaner element.
Check and replace air cleaner
element at the intervals shown in
the Service Schedule.
O/M
Magnetic pickup
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.
Tighten loose connections or
replace wiring as necessary.
Adjust magnetic pickup air gap if
necessary. Replace mag pickup if
necessary after testing.
Section 5.9.4
Measure the resistance across
the magnetic pickup according to
the procedure in Section 5.9.4.
Replace mag pickup if the
resistance is too high (open
circuit) or too low (short circuit).
Section 5.9.4
Incorrect controller
configuration
Check for correct engine
configuration parameter (EC).
Enter the correct controller
configuration parameters.
Section 4.10
Ignition system
spark control or
ignition coil
Test according to instructions in
the engine service manual.
Adjust or replace components as
indicated in engine service
manual.
Engine S/M
Digital spark
advance (DSAI)
leads incorrectly
connected or
disconnected
Check DSAI leads.
Check for loose connections.
Connect for natural gas.
Disconnect for LP.
Tighten connections.
Replace wiring if damaged.
Section 5.11.2
No engine rotation
sensed (check for
an overcrank fault
shutdown)
Check mag pickup. See magnetic
pickup, above.
See magnetic pickup, above. Section 5.9.4
W/D = Wiring Diagram(s) (Section 7) S/S = Generator Set Specification Sheet O/M = Generator Set Operation Manual
I/M = Generator Set Installation Manual Engine S/M = Engine Service 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.