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6.5 Generator Set Troubleshooting
Figure 6-1 contains generator set troubleshooting, diagnostic, and repair information. Check for loose connections
before replacing parts.
Note: Read all safety precautions at the beginning of this publication before performing any work on the generator set.
Problem
Possible Cause
Battery weak or dead.
The generator
set does not
Battery connections reversed or poor.
crank.
Blown fuse(s).
Generator set is OFF.
Air cleaner clogged.
The generator
set cranks but
Battery weak or dead.
does not start,
Battery connection poor.
starts hard,
lacks power, or
Spark plug wire connection loose.
operates
Low oil pressure shutdown.
erratically.
Fuel pressure insufficient.
Engine malfunction.
AC circuit breaker in the OFF position.
No AC output.
AC circuit breaker tripping because of overload. Reduce the load on the generator set by unplugging
AC circuit breaker tripping because of short
circuit.
Low output or
Generator set overloaded.
excessive drop
in voltage.
Low oil pressure shutdown.
Generator set
stops suddenly.
Out of fuel.
Overcrank shutdown.
Blown fuse(s).
Overspeed shutdown.
Generator set is OFF.
Remote stop command received from a remote
switch, ATS, or OnCuer.
Engine malfunction.
Fans run after
The fans continue to run for 2 minutes after the
engine shuts
engine shuts down to evacuate the engine
down.
compartment.
Figure 6-1 General Troubleshooting Chart
68
Section 6 Troubleshooting
Corrective Action
Recharge or replace the battery.
Check the connections.
Replace the fuse. Contact an authorized Kohler dealer
for service if fuse blows repeatedly.
Press the RUN button to start the engine or press AUTO
to allow remote starting.
Clean and/or replace the air cleaner element.
Recharge or replace the battery.
Clean and tighten the battery connections.
Check the spark plug wires.
Check for oil leaks. Check the oil level and add oil if
necessary.
Check the fuel supply and valves.
Contact an authorized Kohler dealer.
Place the circuit breaker in the ON position.
non-essential appliances.
Contact an authorized Kohler dealer for service.
Reduce the load by unplugging non-essential
appliances.
Check for oil leaks. Check the oil level and add oil if
necessary.
Check fuel supply.
Reset the controller. If the overcrank fault occurs again,
contact an authorized Kohler dealer.
Replace the fuse. If the fuse blows again, contact an
authorized Kohler dealer.
Reset the controller. If the overspeed fault occurs again,
contact an authorized Kohler dealer.
Press the RUN button to start the engine or press AUTO
to allow remote starting.
Check the remote switch position.
Contact an authorized Kohler dealer.
None.
TP-7102 9/21
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