Champion 11500-Watt Tri Fuel
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Firman P09305
Generator · P. Specs from the manufacturer page (checked ).
The Firman P09305 is a gasoline inverter-generator rated at 9300 running watts and 11600 starting watts. It has a 459CC engine, a 9-gallon gas tank, and an 11-hour run time. The manufacturer describes it for home projects, work, and backup power, and says it can work with a transfer switch.
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Running
9300W
Peak / surge
11600W
Fuel
gasoline
Run time @50 %
11h
Noise
81dB
CO shutoff
Yes
Key features
- 9300 running watts and 11600 starting watts
- 459CC Firman engine, rated at 81dB
- Remote and electric start
- 9-gallon gas tank with an 11-hour run time
- Can be coupled with a transfer switch for whole-home standby use
- 4-in-1 data minder shows Volts, Hertz, Hrs, and a low oil indicator
- CO Alert monitors carbon emissions
- 11" wheel kit and folding handle
What it is for
- home projects
- work
- backup power
Specifications
| Running watts | 9300 W |
|---|---|
| Peak / surge | 11600 W |
| Fuel | gasoline |
| Tank | 34.07 L (9.0 gal) |
| Run time at 50 % load | 11 h |
| Noise | 81 dB |
| CO shutoff | Yes |
From the Firman page. Values the manufacturer does not publish are left out.
What is in the box
- 11" wheel kit
- Folding handle
- 4-in-1 data minder
- Remote control
- Adapter L5-30P TO TT-30R
- SP wrench - 2x open wrench 10x12
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Connection and wiring
Follow the diagrams in the Firman manual. Connecting to a home panel needs a transfer switch or interlock and a licensed electrician.
- Wiring diagram, manual page 2 →
- Wiring diagram, manual page 33 →
- Wiring diagram, manual page 34 →
- Wiring diagram, manual page 35 →
- Wiring diagram, manual page 36 →
Error codes and troubleshooting
| Code | Meaning | What to do | Manual page |
|---|---|---|---|
| Circuit Breakers | The receptacles are protected by an AC circuit protector that trips if the generator is overloaded or an external short circuit occurs. | Disconnect all electrical loads and determine the cause before using the generator again. If overloading caused the trip, reduce the load. Reset by pressing the protector button. Continuous tripping may damage the generator or equipment. | 8 |
| Oil Warning Indicator Light | Indicates the oil has fallen below the minimum level. The engine stops automatically and will not start until the proper amount of oil is in the crankcase. | Check the oil level when this light turns on. Add the proper amount of engine oil to the crankcase before attempting to start the engine. | 8 |
| Overload Indicator Light | Connected devices have exceeded the generator's wattage or amperage capacity, or a power surge occurred. The AC Power light goes off, the engine keeps running, and power to the receptacles is cut. | Keep the total power drawn from all receptacles within the nameplate rating. | 8 |
| Circuit Breaker | The receptacles are protected by an AC circuit protector that trips if the generator is overloaded or an external short circuit occurs. | Disconnect all electrical loads and find the cause before using the generator again. If overloading caused the trip, reduce the load. Reset by pressing the button on the protector. Continuous tripping may damage the generator or equipment. | 9 |
| Output Ready | Stays on during normal operation. Turns off when the generator is overloaded. | — | 9 |
| AC Reset | The inverter has entered a protective state and AC output is interrupted. | Press the AC Reset Button to restore the output. | 12 |
6 of 13 codes. From the Firman manual. All 13 WH03242 / T09371 / H07553 / W03083 codes →
FAQ
How long does the Firman P09305 run on a tank?
The maker rates it at 11 hours at 50 % load (about 4,650 W) on a 9.0-gal tank. A light load such as a refrigerator and lights runs longer; a full load runs shorter.
Can the Firman P09305 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 11600 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.