WEN DG4500iX
3650 W, dual-fuel
Firman P03632
Generator · Performance Series. Specs from the manufacturer page (checked ).
The Firman P03632 is a gasoline-powered inverter generator rated for 3650 W running and 4550 W starting watts. It has a 208cc engine, 120/240 volt output, and a 5-gallon steel fuel tank that the page says runs up to 14 hours at 1/4 load.
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Running
3650W
Peak / surge
4550W
Fuel
gasoline
Weight
54.2kg
Warranty
3yr
Key features
- 208cc engine with recoil start, electric start, and remote start
- 3650 W running watts, 4550 W starting watts, 120/240 volts
- Outlets: one 5-20R 120V 20A duplex GFCI, one TT-30R 120V 30A twistlock, one L14-30R 120V/240V 30A twistlock (15.2A/240V/3650W)
- 5-gallon steel tank with fuel gauge; up to 14 hours run time at 1/4 load
- Low oil shut-off and easy oil drain
- 67 dB at 1/4 load
- Multi-feature control panel
- 3-year warranty
What it is for
- RV
Specifications
| Running watts | 3650 W |
|---|---|
| Peak / surge | 4550 W |
| Fuel | gasoline |
| Tank | 18.9 L (5.0 gal) |
| AC output voltage | 120/240 volts |
| Weight | 54.2 kg (119.5 lb) |
| Warranty | 3 years |
From the Firman page. Values the manufacturer does not publish are left out.
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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 →
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
Can the Firman P03632 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 4550 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.