TP-6137 5/03 37Section 7 Troubleshooting
Section 7 Troubleshooting
7.1 General
When troubles occur, do not overlook simple causes.
Improper fuel or an empty fuel tank could cause a
starting problem. The following charts indicates some
common problems. Consult the safety precaution
section of this manual before servicing the generator
set. If the procedures in this manual do not explain how
to correct the problem, bring the generator set to an
authorized Kohler distributor or dealer. Tell the
distributor or dealer exactly what happened when the
problem occurred and any adjustments made to the
generator set.
Problem Possible Cause Corrective Action
Unit will not crank Weak or dead battery. Recharge or replace the battery.
Reversed or poor battery connections.
Poor ground.
Check the connections.
Circuit breaker tripped in the controller. Reset the circuit breaker.
Inoperative start/stop switch. Check function; replace as necessary.
Inoperative starter solenoid. Check the starter solenoid and wiring.
Replace as necessary.
Inoperative starter. Attempt starting by direct connection to the
battery. Repair/replace as necessary.
Unit cranks but will not start Fault shutdown. Check the shutdown switches.
Out of fuel. Replenish fuel supply.
Fuel shut-off valve closed. Open the fuel shut-off valve.
Inoperative fuel feed pump. Replace the fuel feed pump.
Clogged fuel filter. Service the fuel filter element.
Air in the fuel system. Bleed the air.
Water or dirt in the fuel system. Drain and flush the fuel system.
Dirty or faulty fuel injectors. Contact your local Kohler generator set
distributor for service.
Incorrect compression. Contact your local Kohler generator set
distributor for service.
Incorrect fuel type. Use the correct fuel type. Consult the fuel
supplier.
Incorrect lube oil type for ambient
temperature.
Use the correct lube oil.
Faulty fuel solenoid. Replace the solenoid.
Air intake screen clogged. Clean or replace.
Faulty ground (--) connection. Clean and retighten.
Weak or dead battery. Recharge or replace.
Engine malfunction. Contact your local Kohler generator set
distributor for service.
Engine starts but does not
continue to run after start switch
is released
Inoperative high exhaust temperature
(HET), low oil pressure (LOP), and/or high
water temperature (HWT) shutdown
switch(es).
Check the HET, LOP and/or HWT
shutdown switch(es).
No/low oil pressure. Check the oil pressure and pump.
No generator output voltage. Check the AC voltage.
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