The Kohler 24RCL is a 2.4 L 4-cylinder natural engine rated at 3600 rpm, producing up to 15 kW. It holds 4.2 L (1.1 gal) of oil and 4.5 L (1.2 gal) of coolant.
Also known as: Kohler 24RCL
| Oil capacity | 4.2 L |
|---|---|
| Coolant capacity | 4.5 L |
| Displacement | 2.4 L |
| Cylinders | 4 |
| Aspiration | natural |
| Rated speed | 3600 rpm |
| Gross power | 15 kW |
No generator set in our catalog cites this exact engine designation yet; its specifications and fault codes are documented here.
| Code | Meaning | Remedy |
|---|---|---|
| CoolntTemp 0 | Coolant temperature is extremely high. | Check coolant level. Check radiator and fans for obstruction. Contact an authorized distributor/dealer for service and provide the fault code. |
| CoolntTemp 3 | The ECM reported a problem with the coolant temperature sensor reading: 3 = high voltage. | Contact an authorized distributor/dealer for service and provide the fault code. |
| CoolntTemp 4 | The ECM reported a problem with the coolant temperature sensor reading: 4 = low voltage. | Contact an authorized distributor/dealer for service and provide the fault code. |
| CoolntTemp 5 | The ECM reported a problem with the coolant temperature sensor reading: 5 = open circuit. | Contact an authorized distributor/dealer for service and provide the fault code. |
| Crank Lost | Crankshaft Position Sensor (CPS) timeout error occurred. | Contact an authorized distributor/dealer for service and provide the fault code. |
| Emerg Stop | The emergency stop switch has been activated, or there has been an open circuit in the wiring. | Contact an authorized distributor/dealer for service. |
| Eng Speed High | Engine speed exceeds 115% of the normal running speed for more than 0.3 seconds. | Contact an authorized distributor/dealer for service. |
| Eng Speed Low | Engine speed drops below 85% of the normal running speed for more than 3 seconds. | Reduce the load by turning off appliances. Contact an authorized distributor/dealer for service. |
| Exer Not Sch | Exercise Not Scheduled. No exercise has been scheduled on the RDC2 controller. | See Section 2.5 for instructions to set the exerciser. |
| Frequency High | Governed frequency exceeds 110% of the system’s frequency setpoint for more than 10 seconds. | Contact an authorized distributor/dealer for service. |
| Frequency Low | Governed frequency falls below 90% of the system frequency setting for more than 10 seconds, or 1 Hz below the system frequency setting for more than 60 seconds. | Reduce the load by turning off appliances and restart the generator set. Contact an authorized distributor/dealer for service. |
| TP-6905 4/16 | Generator set serial number is unavailable. | Contact an authorized distributor/dealer for service. See section 3.11. |
| IAT High 1 | Engine manifold air temperature is too high. | Contact an authorized distributor/dealer for service and provide the fault code. |
| IAT Volt Lo | The ECM reported an Engine Air Temperature/Manifold Absolute Pressure Sensor (TMAP) error. | Contact an authorized distributor/dealer for service and provide the fault code. |
| Lo Crank Vlt | Low cranking voltage. Battery voltage falls below 60% of system battery voltage for more than 6 seconds while the starter is engaged. | Charge or replace the battery. |
| Locked Rotor | No engine rotation is sensed during cranking. Shuts down 3 seconds after the fault is detected. | Check the battery. Check for loose connections. Check for obstruction of alternator or engine. Contact an authorized distributor/dealer for service. |
| MainPwrOverL | Main power overload. An over current fault on the 70 controller power output (short circuit). | Check for shorted run relay. Check wiring for short circuits. Contact an authorized distributor/dealer for service. |
| Maint Req’d | Engine maintenance is due. | Check the maintenance schedule in the operation manual for tasks such as changing the oil, spark plugs or the air filter. |
| Not in Auto | The generator set is not in Automatic (standby) mode. Remote start and stop commands from a transfer switch or remote switch will be ignored. | Press AUTO to place the generator set in Automatic mode, when appropriate. |
| Oil Pres Low | The engine ECM indicates low oil pressure. | Note: The low oil pressure shutdown does not protect against low oil level. Check the engine oil level regularly as recommended in Section 4. Check for leaks in the lubrication system. Check the oil level and add oil if the level is low. Check the oil pressure switch and wiring. |
| Over Crank | Three unsuccessful starting attempts. | Check the fuel supply, spark plug, and battery. Check for loose connections. Contact an authorized distributor/dealer for service. |
| PrimLoopOpn | Ignition coil 1 voltage is below normal or there is an open circuit. | Check the battery voltage. Contact an authorized distributor/dealer for service and provide the fault code. |
| PrimLoopSht | Ignition coil 1 voltage is abno | Contact an authorized distributor/dealer for service and provide the fault code. |
| Symptom | Cause | Remedy |
|---|---|---|
| Battery short circuits | Disconnect the battery before generator set installation or maintenance. | |
| ECM warnings | Contact an authorized distributor/dealer for service and provide the fault code. | |
| Ground Fault Warning | Check customer equipment connected to the PIM. | |
| The generator set does not crank. | Battery weak or dead, Battery connections reversed or poor, Blown fuse(s) | Recharge or replace the battery, Check the connections, Replace the fuse. Contact an authorized Kohler distributor/dealer for service if fuse blows repeatedly |
| The generator set cranks but does not start, starts hard, lacks power, or operates erratically. | Air cleaner clogged, Battery weak or dead, Battery connection poor, Spark plug wire connection loose | Clean and/or replace the air cleaner, Recharge or replace the battery, Clean and tighten the battery connections, 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, Out of fuel | Check for oil leaks. Check the oil level and add oil if necessary, 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 | |
| Fans run after engine shuts down | The fans continue to run for 2 minutes after the engine shuts down to evacuate the engine compartment. |
Fault codes and symptom→remedy steps extracted from this engine’s service/owner documentation; verify against the official manual before servicing.
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | 5W-30 | — | 120 hr | ||
| Oil filter | 5W-30 | — | 120 hr | ||
| Battery | 5W-30 | — | 120 hr | ||
| Belt | 5W-30 | — | 120 hr | ||
| Oil | 5W-30 | 4.2 L | — | 120 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Kohler 24RCL engine has an oil capacity of 4.2 liters.
The Kohler 24RCL has a displacement of 2.4 liters with 4 cylinders.
The Kohler 24RCL oil change interval is every 120 hours.