Wen GN4500

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4500-WATT

PORTABLE GENERATOR

Instruction Manual

MODEL GN4500

IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability,

ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged,

trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use

your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel free to contact us:

TECHSUPPORT@WENPRODUCTS.COM1-800-232-1195 (M-F 8AM-5PM CST)

For replacement parts and the most up-to-date instruction manuals, visit WENPRODUCTS.COM

EPA III CERTIFIED CARB COMPLIANT

Questions and Answers:

L
lisawilliamsJul 28, 2025
Why is my Wen GN4500 Portable Generator running but there is no electrical output?
- J
  Judy MyersJul 28, 2025
  Several factors could cause this. First, the circuit breaker might have tripped due to an overload. To resolve this, turn off and unplug the electrical devices, wait for 5 minutes, and then press the circuit breaker to reset it. Check the total wattage of the devices and reduce the load if it exceeds the generator's capacity. Also, inspect the power and extension cords for damage, replacing them immediately if necessary. A faulty electrical device connected to the generator could also be the issue; try connecting a different device to check. Finally, the voltage regulator may be bad and need replacement after checking with a multimeter, or the carbon brushes may be worn or need adjustment to ensure they extrude the same length.
E
Elizabeth ThomasAug 7, 2025
What to do if my Wen Portable Generator engine will not start?
- S
  sloankaraAug 7, 2025
  If your Wen Portable Generator engine won't start, there are several potential causes to investigate. Begin by checking if the engine switch is set to OFF and set it to ON. Ensure the fuel valve is turned to ON. Check the oil level and add or replace oil if it's low. Verify that the engine has fuel. If the engine is filled with contaminated or old fuel, drain the tank and fill it with fresh fuel. Inspect the spark plug for dirt or damage, and clean or replace it as needed. Lastly, the carburetor may be air locked. To resolve this, shut off the fuel valve, remove the bolt from the bottom of the carburetor, and take off the carburetor bowl to allow it to reset. Replace the carburetor bowl and reinstall the bolt.

Wen GN4500 Specifications

General

Model	GN4500
Starting Wattage	4500 Watts
Running Wattage	3700 Watts
Fuel Type	Gasoline
Engine Type	4-Stroke OHV
Engine Displacement	212 cc
Starting System	Recoil
AC Output	120V
DC Output	12V, 8.3A
Outlets	2x 120V 20A