Specifications
| Fuel | Gasoline |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 14 kW |
| Standby kVA | 14 |
| Controller | ADC 2100 |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Cover, Spring clip(s), Housing, Pressure tap, Element, Dust ejector | A-226955 | 100 hr | Amazon eBay $2.28 PartsGeek | |
| Fuel filter | GM34570 | 100 hr | Amazon eBay $23.36 PartsGeek | ||
| Oil filter | 358337 | 200 hr | PartsGeek | ||
| Belt | GM28353 | 1000 hr | Amazon eBay PartsGeek | ||
| Coolant | — | 800 hr | |||
| Coolant filter | — | find | |||
| Oil | 3.5 L | — | 100 hr |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What is the power rating of the Kohler 15ERG?
The Kohler 15ERG is rated 14 kW standby (14.0 kVA).
What fuel does the Kohler 15ERG use?
The Kohler 15ERG runs on Gasoline.
Troubleshooting
32Fault codes
| Code | Meaning | Cause | Remedy |
|---|---|---|---|
| HB | High battery voltage warning | Engine starting battery voltage rises above 16 VDC for a 12 VDC system or above 30 VDC for a 24 VDC system for more than 2 seconds when the engine is not running. | Check the battery rating and condition. |
| LB | Low battery voltage warning | Engine starting battery voltage falls below 9.5 VDC for a 12 VDC system or below 16 VDC for a 24 VDC system for more than 2 seconds when the engine is not running. | Check the battery rating and condition. Charge or replace the battery. |
Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| The generator set is not running. | Block heater damage; the block heater will fail if the energized heater element is not immersed in coolant. Fill the cooling system before turning on the block heater. Run the engine until it is warm and refill the radiator to purge the air from the system before energizing the block heater. | |
| Hot engine and exhaust system. | Do not work on the generator set until it cools. | |
| Does not crank | Generator set master switch in the OFF position | Move the generator set master switch to the correct position (RUN or AUTO). |
| Crank but does not start | Controller fuse (F3) blown | Replace the blown controller fuse. If the fuse blows again, troubleshoot the controller. |
| Starts hard | Relay interface board fuse (F2) blown | Replace the blown relay interface board fuse. If the fuse blows again, troubleshoot the controller. |
| No or low output voltage | Auxiliary winding fuse (F1) blown | Replace the blown auxiliary winding fuse. If the fuse blows again, troubleshoot the controller. |
| Stops suddenly | Controller circuit breaker tripped | Reset the controller circuit breaker. |
| Lacks power | Controller master or start/stop switch inoperative | Replace the controller master or start/stop switch. |
| Overheats | Cooling System: Air openings clogged | Clean the air openings. |
| Fault shutdown | Reset the controller. | Section 2 |
| Starter/starter solenoid inoperative | Replace the starter or starter solenoid. Eng. S/M | |
| Faulty ground connection | Clean and retighten the connection. — | |
| Air cleaner/backfire flame arrestor clogged | Clean or replace the filter element. Section 2 | |
| Compression weak | Check the compression. Eng. S/M | |
| Engine overload | Reduce the electrical load. See the generator set installation manual for wattage specifications. I/M | |
| Exhaust system leak | Inspect the exhaust system. Replace the inoperative exhaust system components. Section 3, I/M | |
| Exhaust system not securely installed | Inspect the exhaust system. Tighten the loose exhaust system components. Section 3, I/M | |
| Overspeed shutdown | Reset the controller. If the overspeed fault occurs again, contact the distributor/dealer. Section 2 | |
| Valve clearance incorrect | Adjust the valves. Eng. S/M | |
| Vibration excessive | Tighten all loose hardware. — | |
| Ignition system inoperative (gas/gasoline only) | Check the ignition system (ignition module, spark plugs, spark plug wires, etc.). Eng. O/M | |
| AC output circuit breaker open | Reset the breaker and check for AC voltage at the generator side of the circuit breaker. — | |
| Overcrank shutdown | Reset the controller. If the overcrank fault occurs again, contact the distributor/dealer. — | |
| Transfer switch test switch in the OFF position | Move the transfer switch test switch to the AUTO position. ATS O/M | |
| Wiring, terminals, or pin in the exciter field open | Check for continuity. Gen. S/M, W/D | |
| Main field (rotor) inoperative (open or grounded) | Test and/or replace the rotor. Gen. S/M | |
| Stator inoperative (open or grounded) | Test and/or replace the stator. Gen. S/M | |
| Shutdown occurs when the governed frequency falls below 90% of the system’s frequency setpoint for more than 5 seconds. | Reduce the load and restart the generator set. Contact an authorized distributor/dealer for service if problem continues. | |
| Shutdown occurs if the voltage falls below 80% of the voltage regulator setpoint for more than 10 seconds. | Reduce the load and restart the generator set. Contact an authorized distributor/dealer for service if problem continues. | |
| Controller error | Indicates a software or communication problem within the ADC 2100. | Contact an authorized distributor/dealer for service if problem continues. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
1| Part # | Description | Qty | System | |
|---|---|---|---|---|
| G-585 | Unacceptable Nut/Bolt Clearance | 2 | Service part / kit | PartsGeek |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| 25% | 3.37 | 0.89 | |
| 50% | 4.92 | 1.3 | |
| 75% | 6.62 | 1.75 | |
| 100% | 7.95 | 2.1 | |
| Prime | |||
| Standby |
Available documents
Spec sheet (Kohler)Installation manual — tt1364 (Kohler)Reference — TP-6337 Kohler 10,13,15ERG Service Parts (Kohler)Service manual — TP-6334, 10,13,15ERG Operators Manual (Kohler)Service manual — TP-6335 15ERG, 13ERG, 10ERG 95342 Installation Manual (Kohler)