Introduction
This manual provides essential instructions for the safe operation, maintenance, and troubleshooting of your WEN DF1100 11,000-Watt Dual Fuel Portable Generator. Please read this manual thoroughly before operating the generator to ensure proper use and to prevent injury or damage.
The WEN DF1100 generator is designed to provide portable power using either gasoline or propane. It features an electric start, a 457cc 4-stroke OHV engine, and multiple power outlets including 120V GFCI, 120V 30A twist lock, and 120V/240V 50A outlets.
Image: The WEN DF1100 Dual Fuel Portable Generator, shown with a propane tank and a gasoline can, highlighting its dual-fuel capability.
Safety Information
WARNING: Operating a generator can be hazardous. Always follow safety precautions to prevent serious injury or death.
- Carbon Monoxide Hazard: Generators produce carbon monoxide, a colorless, odorless, poisonous gas. Operate the generator outdoors only, far away from windows, doors, and vents. Never operate indoors or in partially enclosed spaces.
- Electrical Shock Hazard: Do not operate the generator in wet conditions. Ensure all electrical connections are dry and secure. Never connect the generator directly to your home's electrical system without a transfer switch installed by a qualified electrician.
- Fire Hazard: Gasoline and propane are highly flammable. Refuel only when the engine is off and cool. Store fuel in approved containers in a well-ventilated area, away from ignition sources. Do not smoke near the generator or fuel.
- Hot Surfaces: The generator engine and muffler become very hot during operation and remain hot for some time after shutdown. Avoid contact to prevent burns.
- Moving Parts: Keep hands, feet, hair, and clothing away from moving parts to prevent entanglement and injury.
- Children and Pets: Keep children and pets away from the generator at all times.
Package Contents
Verify that all items are present upon unpacking:
- WEN DF1100 Dual Fuel Portable Generator
- Wheel Kit
- Electric Start Key
- LPG Connection Hose (47-inch)
- Engine Oil (bottle)
- User Manual
- Two-Year Warranty Information
Setup
1. Install the Wheel Kit
Attach the wheels to the generator frame using the provided hardware. This will facilitate easier transportation of the unit.
Image: A close-up view of the generator's wheel, illustrating the wheel kit component for assembly.
2. Add Engine Oil
Before first use, ensure the engine oil reservoir is filled to the proper level with the included oil or an equivalent 10W-30 oil. Refer to the oil fill cap for the correct level indicator. Do not overfill.
Image: Side view of the WEN DF1100 generator, showing the engine area where oil is added and checked.
3. Connect Fuel Source
The generator operates on either gasoline or propane.
- For Gasoline: Fill the 6.6-gallon fuel tank with fresh, unleaded gasoline. Do not overfill.
- For Propane (LPG): Connect the provided 47-inch LPG hose to a standard propane tank and to the generator's propane inlet. Ensure all connections are tight.
Note: Never mix gasoline and propane in the same tank. The generator is designed to run on one fuel type at a time.
Operating Instructions
1. Fuel Selection
Locate the fuel selection dial on the control panel. Turn the dial to select either "Gasoline" or "Propane" based on your desired fuel source.
2. Starting the Generator (Electric Start)
- Ensure the generator is on a level surface and away from any obstructions.
- Turn the engine switch to the "ON" position.
- Insert the key into the electric start ignition and turn it to the "START" position. Hold until the engine starts, then release.
- Allow the engine to warm up for a few minutes before connecting any electrical loads.
3. Connecting Electrical Loads
The control panel features various outlets:
- Four 120V GFCI outlets (5-20R)
- One 120V 30A twist lock outlet (L5-30R)
- One 120V/240V 50A outlet (NEMA 14-50R)
- One 12V DC cigarette-lighter-style plug
Plug your appliances or extension cords into the appropriate outlets. Do not overload the generator. The generator can provide up to 11,000 surge watts and 8,300 running watts on gasoline, or 9,500 surge watts and 7,500 running watts on propane.
Image: A detailed view of the WEN DF1100 generator's control panel, showing the fuel switch, electric start, and various power outlets.
4. Shutting Down the Generator
- Disconnect all electrical loads from the generator.
- Allow the generator to run for a few minutes without load to cool down.
- Turn the engine switch to the "OFF" position.
- If using propane, close the valve on the propane tank.
Maintenance
Regular maintenance is crucial for the longevity and reliable operation of your generator. Always ensure the generator is off and cool before performing any maintenance.
- Oil Changes: Change the engine oil after the first 20 hours of operation, then every 50-100 hours or annually, whichever comes first.
- Air Filter: Inspect and clean the air filter every 50 hours or more frequently in dusty conditions. Replace if damaged.
- Spark Plug: Inspect the spark plug annually or every 100 hours. Clean or replace as needed to ensure proper ignition.
- Fuel System: If storing the generator for an extended period, drain the gasoline fuel tank and carburetor, or use a fuel stabilizer to prevent fuel degradation.
Image: A close-up view of the generator's engine components, indicating areas for routine maintenance such as spark plug and air filter access.
Troubleshooting
If your generator experiences issues, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine does not start | No fuel, low oil, spark plug issue, engine switch off | Check fuel level and type, add oil, inspect spark plug, ensure engine switch is ON. |
| No power output | Circuit breaker tripped, overloaded, faulty connection | Reset circuit breakers, reduce load, check connections. |
| Engine runs rough | Stale fuel, dirty air filter, spark plug issue | Drain old fuel and add fresh, clean/replace air filter, inspect spark plug. |
For persistent issues, contact WEN customer support.
Specifications
| Feature | Detail |
|---|---|
| Model | DF1100 |
| Brand | WEN |
| Engine Type | 4-Stroke OHV |
| Engine Displacement | 457 cc |
| Fuel Type | Gasoline, Propane |
| Gasoline Surge Watts | 11,000 W |
| Gasoline Running Watts | 8,300 W |
| Propane Surge Watts | 9,500 W |
| Propane Running Watts | 7,500 W |
| Voltage | 120V / 240V |
| Gasoline Tank Volume | 6.6 Gallons |
| Half-Load Run Time (Gasoline) | Up to 8.5 hours |
| Outlets | 4x 120V GFCI (5-20R), 1x 120V 30A Twist Lock (L5-30R), 1x 120V/240V 50A (NEMA 14-50R), 1x 12V DC |
| Starting System | Electric Start |
| Dimensions (L x W x H) | 27.3 x 20.6 x 21.9 inches |
| Item Weight | 53.4 pounds |
| CARB Compliant | Yes |
Warranty and Support
The WEN DF1100 Dual Fuel Portable Generator comes with a two-year warranty, covering defects in materials and workmanship under normal use.
For technical assistance, parts, or warranty claims, please contact WEN customer support. WEN provides a nationwide network of skilled service technicians and a friendly customer support phone line to assist you.
Refer to the warranty card included with your product for specific terms and conditions, and contact information.





