Kohler 14RES

TP-6735 7/17 33Section 3 Troubleshooting
Problem ReferenceCorrective ActionTestPossible Cause
High
output
voltage
Incorrect controller
configuration
Check the controller configuration
parameters. *
Adjust the controller configuration
parameters. *
Section 4.10.1
Incorrect controller
voltage settings
Check the controller voltage
settings. *
Adjust the controller voltage
settings. *
Section 4.10.4
Loose voltage
sensing
connections
Check connections:
stator leads 11 and 44 and
P2 controller connection.
Tighten connections.
Section7W/D
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
Lacks
power
Air intake
restriction,
inadequate cooling
Inspect air intakes and exhaust
for obstructions.
Check air cleaner.
Inspect air intakes and exhaust
for obstructions.
Check air cleaner.
O/M
O/M
Generator
overloaded
Reduce electrical load and check
operation.
Unplug some lights or appliances
connected to the generator set.
—
Spark plug(s) Check spark plugs. Regap and/or replace plug(s). O/M
Spark plug wire(s) Check tightness and condition of
spark plug wires.
Tighten or replace spark plug
wires.
Engine S/M
DSAI leads
incorrectly
connected or
disconnected
Check DSAI leads. Connect for
natural gas. Disconnect for LP.
Connect for natural gas.
Disconnect for LP.
Section 5.11.2
Insufficient fuel
pressure
Check fuel pressure at carburetor
outlet. Check for adequate fuel
pipe size and meter capacity for
generator set and all gas-fired
appliances.
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.
Section 5.11
Fuel line restriction Check fuel pipe size. Contact fuel supplier to provide
larger pipe.
Section 5.11
Fuel regulator Check function of fuel regulator. Repair or replace fuel regulator. Section 5.11
Engine not running
at rated rpm
Check controller setting for
engine type (EC). *
Check engine speed.
Reset controller setting for engine
type (EC). *
Adjust engine speed.
Section 4.10
Engine power loss Refer to the engine service
manual for troubleshooting and
repair instructions.
Refer to the engine service
manual for troubleshooting and
repair instructions.
Engine S/M
Governor
malfunction or
misadjustment
Test governor. Adjust governor. Section 5.9
Ignition system See the engine service manual for
service procedures.
See the engine service manual for
service procedures.
Engine S/M
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.