Generac iQ5200
3900 W, dual-fuel
WEN GN400iX
Generator · RV-Ready. Specs from the manufacturer page (checked ).
The WEN GN400iX is a gasoline open frame inverter generator rated at 3500 watts, with 4000 surge watts from a 212cc 4-stroke OHV engine. It produces clean power for sensitive electronics, with total harmonic distortion under 1.2 percent at full load. It includes a 120V RV-ready TT-30R receptacle and a WEN Watchdog CO Shutdown Sensor.
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Running
3500W
Peak / surge
4000W
Fuel
gasoline
Run time @50 %
7h
CO shutoff
Yes
Warranty
2yr
Key features
- Outlets: two 120V NEMA 5-20R receptacles, two 5V USB ports, and one 120V RV-ready TT-30R receptacle
- 212cc 4-stroke OHV engine produces 4000 surge watts and 3500 rated watts
- 1.85-gallon fuel tank provides over 7 hours of half-load run time
- Eco-mode switch adjusts fuel consumption as items are plugged in and unplugged
- Total harmonic distortion under 0.3 percent at no load and under 1.2 percent at full load
- Parallel-ready panel; link two units with a WEN Parallel Connection Kit (sold separately)
- WEN Watchdog CO Shutdown Sensor automatically turns off the generator if dangerous carbon monoxide levels are detected
- Automatic low-oil and low-fuel shutdown, plus built-in overload protection and indicator lights
What it is for
- RV
Specifications
| Running watts | 3500 W |
|---|---|
| Peak / surge | 4000 W |
| Fuel | gasoline |
| Tank | 7 L (1.8 gal) |
| Run time at 50 % load | 7 h |
| CO shutoff | Yes |
| AC output voltage | 120V |
| Warranty | 2 years |
From the WEN page. Values the manufacturer does not publish are left out.
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WEN GN400iX comparisons
- GN400iX vs Generac iQ5200
- GN400iX vs Anker SOLIX Smart Generator 5500
- GN400iX vs Pulsar GD400BN
- GN400iX vs Champion 5500-Watt Dual Fuel Inverter
- GN400iX vs Firman W03383
Connection and wiring
Follow the diagrams in the WEN manual. Connecting to a home panel needs a transfer switch or interlock and a licensed electrician.
- Parallel connection, manual page 12 →
- Parallel connection, manual page 20 →
- Wiring diagram, manual page 32 →
Error codes and troubleshooting
| Code | Meaning | What to do | Manual page |
|---|---|---|---|
| Overload | Generator was overloaded by too much drawn wattage. The overload reset button activates and cuts output within 3 to 16 seconds, depending on load. | Turn off and disconnect electrical devices until the overload light turns off. Wait about five minutes, then press the activated reset button. If no power after reset, turn off and disconnect all devices and restart the generator. | 23 |
| Flashes 1x | Voltage at the alternator is too low. There is no electrical output. | Check for loose connections. Call 1-800-232-1195 for assistance. Call service if it persists. | 24 |
| Flashes 2x | Engine speed is too low. There is no electrical output. | Check carburetor and stepper motor. Ensure Eco-Mode is OFF. Have the generator serviced; call 1-800-232-1195 for assistance. Call service if it persists. | 24 |
| Flashes 3x | Inverter temperature is too high. There is no electrical output. | Turn the generator off and let it cool fully for 1 to 2 hours before restarting. | 24 |
| Flashes 5x | Voltage at the alternator is too high. There is no electrical output. | Have the generator serviced; call 1-800-232-1195 for assistance. Call service if it persists. | 24 |
| Flashes 6x | Generator exceeded rated output and cut off power to protect itself. There is no electrical output. | Turn OFF and disconnect loads. Press the RESET button on the panel. Reduce the load on the generator. | 24 |
6 of 7 codes. From the WEN manual. All 7 DF875iX / DF402iX / GN875iX / GN625iX codes →
FAQ
How long does the WEN GN400iX run on a tank?
The maker rates it at 7 hours at 50 % load (about 1,750 W) on a 1.8-gal tank. A light load such as a refrigerator and lights runs longer; a full load runs shorter.
Can the WEN GN400iX start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 4000 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.