Specifications
| Fuel | Natural Gas |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 10 kW |
| Standby kVA | 10 |
| Emissions | EPA 40 CFR 60 |
| Controller | DC2, RDC2 |
| Oil capacity | 1.9 L |
| Alternator | Kohler 2F3 |
| Voltage options | 120 V, 240 V |
| Phase | 1 |
| Rated current | 41.7 A |
| Power factor | 1.0 |
| Circuit breaker | 50 A |
| Battery group | 51 |
| Battery cranking | 500 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Dimensions (L×W×H) | 777×712×824 mm |
| Dry weight | 194 kg |
| Sound level | 67.0 dBA @ 7 m |
Maintenance & consumables
for the Kohler KT725| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | — | 100 hr | find | ||
| Oil | 1.9 L | — | 100 hr |
Common questions
What is the power rating of the Kohler 10RESV?
The Kohler 10RESV is rated 10 kW standby (10.0 kVA).
What engine does the Kohler 10RESV use?
The Kohler 10RESV is powered by the Kohler KT725 engine.
What fuel does the Kohler 10RESV use?
The Kohler 10RESV runs on Natural Gas.
What is the oil capacity of the Kohler 10RESV?
The Kohler KT725 engine in the Kohler 10RESV has an oil capacity of 1.9 liters.
What alternator does the Kohler 10RESV use?
The Kohler 10RESV uses a Kohler 2F3 alternator.
Troubleshooting
6Fault 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 |
|---|---|---|
| Severe electrical equipment damage | Welding components of the generator set without disconnecting battery, controller wiring harness, and engine electronic control module (ECM) | Never weld components of the generator set without first disconnecting the battery, controller wiring harness, and engine electronic control module (ECM). |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
9model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 100ERESD | KOHLER 100ERESD generator | Service part / kit | PartsGeek | |
| 125ERESC | KOHLER 125ERESC generator | Service part / kit | PartsGeek | |
| 12RES | KOHLER 12RES generator | Service part / kit | PartsGeek | |
| 150ERESC | KOHLER 150ERESC generator | Service part / kit | PartsGeek | |
| 20RESD | KOHLER 20RESD generator | Service part / kit | PartsGeek | |
| 24RCL | KOHLER 24RCL generator | Service part / kit | PartsGeek | |
| 30RCL | KOHLER 30RCL generator | Service part / kit | PartsGeek | |
| 60RCL | KOHLER 60RCL generator | Service part / kit | PartsGeek | |
| 80ERESD | KOHLER 80ERESD generator | Service part / kit | PartsGeek |
Compiled from this model's family documentation — may include parts for closely-related variants. 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 |
|---|---|---|---|
| Exercise | 100% | 2.1 | |
| Standby | 25% | ||
| Standby | 50% | ||
| Standby | 75% | ||
| Standby | 100% |
Available documents
Brochure (Kohler)Brochure — 21-03R Air-Cooled Residential Product Updates - 2021 (Kohler)Brochure — GSA Product List (Kohler)Brochure — RES Consumer Referral Rebate (Kohler)Brochure — Referral Rebate Form EDITABLE (Kohler)Spec sheet (Kohler)Spec sheet — Kohler.12RESV.Spec.g4241 (Kohler)Spec sheet — Kohler.12RESVL.SPECS.g4242 (Kohler)Spec sheet — g4254 (Kohler)Installation manual — Controllers tt1589 (Kohler)Installation manual — TP-6984 (Kohler)Installation manual — TT-1482 (Kohler)Installation manual — tp6879 (Kohler)Installation manual — tp6984fr (Kohler)Installation manual — tt1482 (Kohler)Installation manual — tt1589 (Kohler)Installation manual — tt1619 (Kohler)Installation manual — tt1634 (Kohler)Reference — FinalGSAPriceListEffective 3-20-2023 (Kohler)Reference — GSAPriceList (Kohler)Reference — Kohler 2017 Referral Rebate Consumer RESReference — Kohler 2019 RES Consumer Referral RebateReference — ReferralRebateForm Editable1 (Kohler)Reference — Rotor Stator Reading Form (Kohler)Owner's manual — tp6880 (Kohler)Owner's manual — tp6880fr (Kohler)Parts manual (Kohler)Service manual — Choosing-a-Generator-Compatible-with-The-Enphase-Energy-Management-System (Kohler)Service manual — tp6881 (Kohler)