Kohler 18RESNT Operation page 42

Problem Possible Cause
The generator set Fault shutdown
does not crank.
Battery weak or dead
Battery charger fuse blown
Battery connections reversed or poor
Fuse F2 blown
Fuse F3 blown
Generator set master switch in the OFF
position
The generator set
Air cleaner clogged
cranks but does not
Battery weak or dead
start, starts hard,
lacks power, or
Battery connection poor
operates erratically.
Spark plug wire connection loose
Low oil pressure shutdown
Fuel pressure insufficient
Engine malfunction
No AC output. AC circuit breaker in the OFF position
AC circuit breaker tripping because of overload
AC circuit breaker tripping because of short
circuit
Auxiliary winding fuse (F1) blown
Low output or Generator set overloaded
excessive drop in
voltage.
Generator set stops
Low oil pressure shutdown
suddenly.
Out of fuel
Overcrank shutdown
Controller fuse (F3) blown
Overspeed shutdown
Generator set master switch in the OFF/RESET
position
Remote stop command received from a remote
switch or ATS
Engine malfunction
Auxiliary winding fuse (F1) blown
Figure 5-2 General Troubleshooting Chart
42 Section 5 Troubleshooting
Corrective Action
Check for a fault code on the controller display. See
Section 2.6.
Check power to the battery charger.
Recharge or replace the battery.
Replace the fuse. Contact an authorized
distributor/dealer for service if fuse blows
repeatedly.
Check the connections.
Replace the fuse. Contact an authorized
distributor/dealer for service if fuse blows
repeatedly.
Replace the fuse. Contact an authorized
distributor/dealer for service if fuse blows
repeatedly.
Move the master switch to AUTO for remote start or
to RUN for local start.
Clean and/or replace the air cleaner.
Check power to the battery charger.
Recharge or replace the battery.
Clean and tighten the battery connections.
Check the spark plug wires.
Check the oil level.
Check the fuel supply and valves.
Contact the distributor/dealer.
Place the circuit breaker in the ON position.
Reduce the load on the generator set.
Contact an authorized distributor/dealer for service.
Replace the fuse. Contact an authorized distributor/
dealer for service if fuse blows repeatedly.
Reduce the load.
Check the oil level.
Check fuel supply.
Reset the controller. If the overcrank fault occurs
again, contact the distributor/dealer.
Replace the fuse. If the fuse blows again, contact
the distributor/dealer.
Reset the controller. If the overspeed fault occurs
again, contact the distributor/dealer.
Move the switch to the correct position (RUN or
AUTO).
Check the remote switch position.
Contact the distributor/dealer.
Replace the fuse. Contact an authorized distributor/
dealer for service if fuse blows repeatedly.
TP-6517 4/09