Specifications
| Fuel | Natural Gas |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 27 kW |
| Standby kVA | 27 |
| Controller | ADC 2100, Advanced Digital (ADC 2100) |
| Oil capacity | 3.5 L |
| Alternator | Kohler 2F7 |
Engine
| Oil capacity | 3.5 L |
|---|---|
| Coolant capacity | 11.5 L |
| Displacement | 1.6 L |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the General Motors GM 1.6L OHC| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Inspect and clean | ×1 | GM16944 | Amazon eBay $49.68 PartsGeek | |
| Fuel filter | — | find | |||
| Oil filter | ×1 | GM28351 | 200 hr | Amazon eBay $19.46 PartsGeek | |
| Belt | ×1 | GM28352 | Amazon eBay $35.00 PartsGeek | ||
| Coolant | Flush the cooling system | 11.5 | — | 1000 hr | |
| Oil | 3.5 L | GM62348-SKP1-QS | 200 hr | Amazon eBay PartsGeek |
Common questions
What is the power rating of the Kohler 30REYG?
The Kohler 30REYG is rated 27 kW standby (27.0 kVA).
What engine does the Kohler 30REYG use?
The Kohler 30REYG is powered by the General Motors GM 1.6L OHC engine.
What fuel does the Kohler 30REYG use?
The Kohler 30REYG runs on Natural Gas.
What is the oil capacity of the Kohler 30REYG?
The General Motors GM 1.6L OHC engine in the Kohler 30REYG has an oil capacity of 3.5 liters.
What alternator does the Kohler 30REYG use?
The Kohler 30REYG uses a Kohler 2F7 alternator.
Troubleshooting
10Fault codes
| Code | Meaning | Cause | Remedy |
|---|---|---|---|
| GeneratorVoltageImbalance OR GeneratorComBusPhaseDifferenceOOR | Generator was overloaded. | Generator breaker in IQ System Controller tripped, and the generator is disconnected. | The system will try to reconnect the generator in 5 minutes. You should: • Open IQ System Controller door, turn off the generator breaker and turn it on again. (When you open IQ System Controller, the generator breaker lever will not be in ON position) • Ensure you do not overload the system while the generator is running. |
| EnpowerGeneratorVoltHighTrip OR EnpowerGeneratorVoltLowTrip OR EnpowerGeneratorFreqHighTrip OR EnpowerGeneratorFreqLowTrip | Generator voltage and/or frequency out of spec while in generator mode and generator is connected | The generator gets disconnected | |
| GeneratorStartFailed | Generator not starting | The generator does not start as selected in user preferences. | Check if the generator 2-wire start/stop wiring to IQ System Controller is loose. Check whether the generator breaker at the unit was tripped (if so turn the breaker off and then on. Also switch the controller to the auto position), whether the generator is out of fuel, or the starting battery of the generator was dead. Contact your installer or Enphase customer support if the problem persists. |
| GeneratorStopFailed | Generator not stopping | Generator continues to run even though user preferences indicate it should have stopped. | Check if the generator 2-wire start/stop wiring to IQ System Controller is loose. Turn off the generator manually and contact installer or Enphase customer support. |
| GenTHDHigh | High Total Harmonic Distortion (THD) Measured THD is above 25% | Generator power output is not stable and having high THD (THD means total harmonic distortion, which is a metric to measure the power quality. If the THD is high, the performance of your electronics will be affected; for example, you may see flickering lights). |
Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Generator Set does not start | Fault Warning or Shutdown | Check the fault warning and reset the controller if necessary |
| Engine fails to reach operating temperature | Cooling system issue | Check coolant level, flush and clean cooling system if necessary |
| Generator produces insufficient power | Air filter clogged | Clean or replace air filter |
| Gas fuel leaks can cause an explosion. | Check the LPG vapor or natural gas fuel system for leakage by using a soap and water solution with the fuel system test pressurized to 6--8 ounces per square inch (10--14 inches water column). Do not use a soap solution containing either ammonia or chlorine because both prevent bubble formation. A successful test depends on the ability of the solution to bubble. | |
| LPG liquid withdrawal fuel leaks can cause an explosion. | Check the LPG liquid withdrawal fuel system for leakage by using a soap and water solution with the fuel system test pressurized to at least 90 psi (621 kPa). Do not use a soap solution containing either ammonia or chlorine because both prevent bubble formation. A successful test depends on the ability of the solution to bubble. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
13| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 359422 | Washer, sealing (30.1 mm OD) | 1 | Seal | PartsGeek |
| 365499 | O-ring, ISO 6149 (11.3 mm ID) | 2 | Seal | PartsGeek |
| GM16944 | Element, air cleaner | 1 | Air filter | Amazon eBay $49.68 PartsGeek |
| GM28351 | Filter, oil | 1 | Oil filter | Amazon eBay $19.46 PartsGeek |
| GM75873 | Air Intake Resonator Kit | 1 | Air filter | PartsGeek |
| X-386-109 | Fuel line, flexible | 1 | Hose | PartsGeek |
| X-422-15 | Fuel line, flexible | 1 | Hose | PartsGeek |
| X-422-35 | Fuel line, flexible | 1 | Hose | PartsGeek |
| X-422-38 | Line, flexible | 1 | Hose | PartsGeek |
| 364345 | Switch, assembly pressure | 1 | Service part / kit | PartsGeek |
| GM36247 | Exhaust pipe | 1 | Service part / kit | PartsGeek |
| GM66054 | Decal, check oil | 1 | Service part / kit | PartsGeek |
| GM66559 | Lead, oil pressure switch | 1 | 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 |
|---|---|---|---|
| Standby | 25% | 181.2 | |
| Standby | 50% | 240.7 | |
| Standby | 75% | 300.5 | |
| Standby | 100% | 359.6 |
Available documents
Spec sheet (Kohler)Installation manual — tp6727 (Kohler)Installation manual — tt1364 (Kohler)Installation manual — tt1486 (Kohler)Installation manual — tt1549 (Kohler)Reference — TT1521 (Kohler)Reference — oil makeup g6128 (Kohler)Owner's manual — tp6728 (Kohler)Parts manual (Kohler)Service manual — Choosing-a-Generator-Compatible-with-The-Enphase-Energy-Management-System (Kohler)Service manual — tp6198 (Kohler)