Kohler 14RES Manual page 33

Problem Possible Cause
Incorrect controller
High
configuration
output
voltage
Incorrect controller
voltage settings
Loose voltage
sensing
connections
Controller
Air intake
Lacks
restriction,
power
inadequate cooling
Generator
overloaded
Spark plug(s)
Spark plug wire(s)
DSAI leads
incorrectly
connected or
disconnected
Insufficient fuel
pressure
Fuel line restriction
Fuel regulator
Engine not running
at rated rpm
Engine power loss
Governor
malfunction or
misadjustment
Ignition system
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 the controller configuration
parameters. *
Check the controller voltage
settings. *
Check connections:
stator leads 11 and 44 and
P2 controller connection.
Check the controller settings.
Test the controller as described in
Section 3.6.
Inspect air intakes and exhaust
for obstructions.
Check air cleaner.
Reduce electrical load and check
operation.
Check spark plugs.
Check tightness and condition of
spark plug wires.
Check DSAI leads. Connect for
natural gas. Disconnect for LP.
Check fuel pressure at carburetor
outlet. Check for adequate fuel
pipe size and meter capacity for
generator set and all gas-fired
appliances.
Check fuel pipe size.
Check function of fuel regulator.
Check controller setting for
engine type (EC). *
Check engine speed.
Refer to the engine service
manual for troubleshooting and
repair instructions.
Test governor.
See the engine service manual for
service procedures.
S/S = Generator Set Specification Sheet
Engine S/M = Engine Service Manual
Corrective Action
Adjust the controller configuration
parameters. *
Adjust the controller voltage
settings. *
Tighten connections.
Adjust controller settings.
See Section 3.6.
Inspect air intakes and exhaust
for obstructions.
Check air cleaner.
Unplug some lights or appliances
connected to the generator set.
Regap and/or replace plug(s).
Tighten or replace spark plug
wires.
Connect for natural gas.
Disconnect for LP.
Contact fuel supplier to replace
pipe and/or meter as required to
provide sufficient fuel supply
pressure for the generator set and
all gas-fired appliances.
Contact fuel supplier to provide
larger pipe.
Repair or replace fuel regulator.
Reset controller setting for engine
type (EC). *
Adjust engine speed.
Refer to the engine service
manual for troubleshooting and
repair instructions.
Adjust governor.
See the engine service manual for
service procedures.
O/M = Generator Set Operation Manual
Section 3 Troubleshooting
Reference
Section 4.10.1
Section 4.10.4
Section 7 W/D
Section 4.10
Section 3.6
O/M
O/M
—
O/M
Engine S/M
Section 5.11.2
Section 5.11
Section 5.11
Section 5.11
Section 4.10
Engine S/M
Section 5.9
Engine S/M
33