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TP-6905 6/1462 Section 5 Troubleshooting
5.5 Generator Set Troubleshooting
Figure 5-1 contains generator set troubleshooting, diagnostic, and repair information. Check for loose connections
before replacing parts.
Problem Possible Cause Corrective Action
The generator
set does not
crank.
Battery weak or dead. Recharge or replace the battery.
Battery connections reversed or poor. Check the connections.
Blown fuse(s). Replace the fuse. Contact an authorized Kohler
distributor/dealer for service if fuse blows repeatedly.
Generator set is OFF. Press the RUN button to start the engine or press AUTO
to allow remote starting.
The generator
set cranks but
does not start,
starts hard,
lacks power, or
operates
erratically.
Air cleaner clogged. Clean and/or replace the air cleaner.
Battery weak or dead. Recharge or replace the battery.
Battery connection poor. Clean and tighten the battery connections.
Spark plug wire connection loose. Check the spark plug wires.
Low oil pressure shutdown. Check for oil leaks. Check the oil level and add oil if
necessary.
Fuel pressure insufficient. Check the fuel supply and valves.
Engine malfunction. Contact an authorized Kohler distributor/dealer.
No AC output.
AC circuit breaker in the OFF position. Place the circuit breaker in the ON position.
AC circuit breaker tripping because of overload. Reduce the load on the generator set.
AC circuit breaker tripping because of short
circuit.
Contact an authorized Kohler distributor/dealer for
service.
Low output or
excessive drop
in voltage.
Generator set overloaded. Reduce the load.
Generator set
stops suddenly.
Low oil pressure shutdown. Check for oil leaks. Check the oil level and add oil if
necessary.
Outoffuel. Check fuel supply.
Overcrank shutdown. Reset the controller. If the overcrank fault occurs again,
contact an authorized Kohler distributor/dealer.
Blown fuse(s). Replace the fuse. If the fuse blows again, contact an
authorized Kohler distributor/dealer.
Overspeed shutdown. Reset the controller. If the overspeed fault occurs again,
contact an authorized Kohler distributor/dealer.
Generator set is OFF. Press the RUN button to start the engine or press AUTO
to allow remote starting.
Remote stop command received from a remote
switch, ATS, or OnCuer Plus.
Check the remote switch position.
Engine malfunction. Contact an authorized Kohler distributor/dealer.
Fans run after
engine shuts
down.
The fans continue to run for 2 minutes after the
engine shuts down to evacuate the engine
compartment.
None.
Figure 5-1 General Troubleshooting Chart