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WEN DF400i

Generator. Specs from the manufacturer page (checked ).

WEN DF400i
Photo: WEN

The WEN DF400i is a dual-fuel inverter generator rated at 3200 running watts on gasoline (4000 surge watts) and 2900 running watts on propane (3200 surge watts). It includes 120V household receptacles, an RV-ready 120V NEMA TT-30R receptacle, a 12V DC receptacle, and a 5V USB port. The page gives a noise level of 58 dBA at quarter load and a three-year warranty.

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Running
3200W
Peak / surge
4000W
Fuel
dual-fuel
Run time @50 %
8.5h
Warranty
3yr

Key features

What it is for

Specifications

Running watts3200 W
Peak / surge4000 W
Fueldual-fuel
Tank8.33 L (2.2 gal)
Run time at 50 % load8.5 h
AC output voltage120V
Warranty3 years

From the WEN page. Values the manufacturer does not publish are left out.

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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.

Error codes and troubleshooting

We found no error-code table in this manual. Its troubleshooting section is the reference.

FAQ

How long does the WEN DF400i run on a tank?

The maker rates it at 8.5 hours at 50 % load (about 1,600 W) on a 2.2-gal tank. A light load such as a refrigerator and lights runs longer; a full load runs shorter.

Can the WEN DF400i 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.

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