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

Battery weak or dead.

Recharge or replace the battery.

set does not

 

 

Battery connections reversed or poor.

Check the connections.

crank.

 

 

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

Air cleaner clogged.

Clean and/or replace the air cleaner.

set cranks but

 

 

Battery weak or dead.

Recharge or replace the battery.

does not start,

 

 

Battery connection poor.

Clean and tighten the battery connections.

starts hard,

 

 

lacks power, or

Spark plug wire connection loose.

Check the spark plug wires.

operates

 

 

Low oil pressure shutdown.

Check for oil leaks. Check the oil level and add oil if

erratically.

 

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

Contact an authorized Kohler distributor/dealer for

 

circuit.

service.

 

 

 

Low output or

Generator set overloaded.

Reduce the load.

excessive drop

 

 

in voltage.

 

 

 

 

 

Generator set

Low oil pressure shutdown.

Check for oil leaks. Check the oil level and add oil if

stops suddenly.

 

necessary.

 

 

 

 

Out of fuel.

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

Check the remote switch position.

 

switch, ATS, or OnCuer Plus.

 

 

 

 

 

Engine malfunction.

Contact an authorized Kohler distributor/dealer.

 

 

 

Fans run after

The fans continue to run for 2 minutes after the

None.

engine shuts

engine shuts down to evacuate the engine

 

down.

compartment.

 

Figure 5-1General Troubleshooting Chart

62 Section 5 Troubleshooting

TP-6905 6/14

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Kohler 24RCL manual Generator Set Troubleshooting, Problem Possible Cause Corrective Action

24RCL specifications

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Overall, the Kohler 24RCL is a powerful, efficient, and quiet backup generator that combines advanced technology with rugged reliability. Its features make it a standout choice for homeowners seeking a dependable power solution that prioritizes convenience, safety, and sustainability. Whether facing severe weather or unexpected outages, the Kohler 24RCL ensures that homes remain powered and protected.