Kohler 17RES Manual page 28

Problem Possible Cause
Ignition
Starts
components (spark
hard,
control or ignition
continued
module)
Insufficient fuel
pressure
Worn piston rings,
valves
Fault shutdown
Starts but
shuts
down
Cranks but No engine rotation
does not sensed (check for
start an overcrank fault
shutdown)
Fault shutdown
Stops
suddenly
No fuel
Fuel line restriction
Fuel lines too long
Air cleaner clogged
Blown fuse
Spark plug(s)
Engine overheated
(hot engine only)
Low oil pressure
(LOP) switch
Fuel valve/fuel
regulator
* 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
28 Section 3 Troubleshooting
Test
Test ignition components
according to instructions in the
engine service manual.
Check fuel pressure to the
generator set. Verify adequate
fuel pressure and pipe size for the
generator set plus all other gas
appliances.
Check compression. See the
engine service manual.
Check for a fault shutdown code
on the controller's LED display.
Identify the cause of the fault.
Check for locked rotor.
Check for a fault shutdown code
on the controller's LED display.
Identify the cause of the fault.
Check fuel valves and fuel supply. Open manual fuel valve. Contact
Inspect fuel lines.
Check fuel line length and pipe
size.
Check for a dirty air cleaner
element.
Check fuse F1, F2, and F3.
Check spark plug(s).
Check air intake and generator
set enclosure air inlets and outlet.
Use oxygen sensor to check fuel
mixture.
Check oil level.
Check oil pressure.
Attempt startup. If unit shuts
down, remove lead from LOP
switch and reset controller. A
successful restart attempt
indicates a faulty LOP shutdown
switch.
Note: Check engine oil pressure
before performing test and/or
replacing LOP shutdown switch.
Check fuel valve connections.
Check regulator/valve operation.
Check fuel pressure.
S/S = Generator Set Specification Sheet
Engine S/M = Engine Service Manual
Corrective Action
Replace ignition components if
necessary.
Contact fuel supplier to replace
fuel supply lines with larger pipe
and replace gas meter if fuel
pressure is insufficient.
See engine service manual.
Correct the fault and then move
the generator set master switch to
OFF/RESET to reset the
controller.
Repair or replace rotor.
Correct the fault and then move
the generator set master switch to
OFF/RESET to reset the
controller.
fuel supplier to replenish fuel
supply.
Clear restriction.
Contact fuel supplier to replace
fuel lines with larger pipe.
Replace air cleaner element.
Replace fuse. If fuse blows again,
test generator components.
Replace or regap plug(s).
Clear air intake and enclosure air
inlets and outlets.
Adjust fuel mixture.
Add oil. Check and replace oil at
the intervals shown in the Service
Schedule.
See engine S/M.
Replace faulty LOP shutdown
switch.
Note: Check engine oil pressure
before performing test and/or
replacing LOP shutdown switch.
Tighten fuel valve connections.
Replace damaged wires.
Replace regulator or valve .
O/M = Generator Set Operation Manual
Reference
Engine S/M
Section 5.12.2
Engine S/M
Section 4.4
Section 5.10
Section 5.4
Section 4.4
Section 5.10
—
—
Generator set
S/S, I/M
O/M
Section 5.13.2
O/M
O/M
Section 5.12
O/M
Engine S/M
Section 5.10.2
Section 5.12
TP-6519 8/17