Wen 56250i Instruction Manual
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Wen 56250i Instruction Manual

2500w portable inverter generator
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MODEL 56250i
2500W PORTABLE
INVERTER GENERATOR
Instruction Manual
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
1-847-429-9263 (M-F 8AM-5PM CST)
TECHSUPPORT@WENPRODUCTS.COM
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.
WENPRODUCTS.COM
For replacement parts and the most up-to-date instruction manuals, visit

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Summary of Contents for Wen 56250i

  • Page 1 1-847-429-9263 (M-F 8AM-5PM CST) TECHSUPPORT@WENPRODUCTS.COM 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.

  • Page 2: Table Of Contents

    CONTENTS WELCOME Specifications ....................3 Introduction ......................4 SAFETY Safety Information ....................5 Generator Safety Warnings ................6 BEFORE OPERATING Unpacking & Packing List .................9 Know Your Inverter Generator .................10 Generator Preparation ..................12 OPERATION & MAINTENANCE Starting Your Generator ..................16 Using Your Generator ..................18 Shutting Off Your Generator ................23 Maintenance ....................24 Transportation &...

  • Page 3: Welcome

    SPECIFICATIONS GENERATOR Rated Wattage 1900W Surge Wattage 2500W AC: 120V Rated Voltage DC: 5V AC: 15.8A Rated Amperage DC: 2.1A Phase Single Frequency 60Hz Decibel Rating 65 dBA (25% Load) Product Dimensions 17.3 in. x 11.4 in. x 17.3 in. Product Net Weight 37.5 Pounds ENGINE...

  • Page 4: Service Record

    INTRODUCTION Thanks for purchasing the WEN 2500-Watt Inverter Generator. Refer to the illustration below for the location of the serial number on the specifications label. Record the generator information in the spaces provided below. If assis- tance for information or service is required, please contact customer service by calling 1-847-429-9263, M-F 8-5 CST;...

  • Page 5: Safety

    WEN reserves the right to change this product and specifications at any time without prior notice. At WEN, we are continuously improving our products. If you find that your tool does not exactly match this manual, please visit wenproducts.com for the most up-to-date manual or contact customer service at 1-847-429-9263, M-F 8-5 CST.

  • Page 6: Generator Safety Warnings

    GENERATOR SAFETY WARNINGS DANGER! CARBON MONOXIDE Using a generator indoors CAN KILL YOU IN MINUTES. Generator exhaust contains carbon monoxide (CO). This is a poison gas you cannot see or smell. If you can smell the generator exhaust, you are breathing CO. But even if you cannot smell the exhaust, you could be breathing CO.

  • Page 7: Operating Environment

    GENERATOR SAFETY WARNINGS WARNING! Do not let comfort or familiarity with the product replace strict adherence to product safety rules. Failure to follow the safety instructions may result in serious personal injury. OPERATING ENVIRONMENT 3. If any part of the generator, electrical device or pow- er cord is broken, damaged, or defective, make sure 1.
  • Page 8 GENERATOR SAFETY WARNINGS WARNING! Do not let comfort or familiarity with the product replace strict adherence to product safety rules. Failure to follow the safety instructions may result in serious personal injury. TO MAXIMIZE THE LIFESPAN OF YOUR GENERATOR: We recommend running your generator at least once a month for 20 to 30 minutes.

  • Page 9: Before Operating

    UNPACKING & PACKING LIST UNPACKING With the help of a friend or trustworthy foe, such as one of your in-laws, carefully remove the generator from the packaging and place it on a sturdy, flat surface. Make sure to take out all contents and accessories. Do not discard the packaging until everything is removed.

  • Page 10: Know Your Inverter Generator

    KNOW YOUR INVERTER GENERATOR TOOL PURPOSE Inverter Generators provide you with clean and quiet power, when and where you need it most. Refer to the fol- lowing diagrams to become familiarized with all the parts and controls of your generator. The components will be referred to later in the manual for assembly and operation instructions.

  • Page 11: Control Panel

    KNOW YOUR INVERTER GENERATOR CONTROL PANEL 1. Indication Lights 5. AC Circuit Breaker, 20A • The ECO-MODE indicator light will light up when the Press to reset the NEMA 5-20R outlets. ECO-MODE is ON. The generator automatically enters 6. 5V USB Port ECO-MODE upon startup.

  • Page 12: Generator Preparation

    GENERATOR PREPARATION The following section describes the necessary steps to prepare the generator for use. If you are unsure about how to perform any of the steps please call 1-847-429-9263 M-F 8-5 CST for customer service. Failure to perform these steps properly can damage the generator or shorten its life.
  • Page 13 Indicator TIP: Your WEN generator is compatible with the WEN 55201 Magnetic Oil Dipstick (not included), available for purchase at wenproducts.com. The dipstick’s industrial-strength magnetic tip will collect metal shavings from your generator’s oil tank to help preserve the engine and extend your generator’s lifespan.
  • Page 14 GENERATOR PREPARATION STEP 2 - ADD / CHECK FUEL WARNING! RISK OF EXPLOSION. HIGHLY FLAMMABLE: This generator may emit highly flammable and explosive gasoline vapors, which can cause severe burns or even death, if ignited. A nearby open flame can lead to explosion even if not directly in contact with gasoline.

  • Page 15: Step 3 - Ground The Generator

    This kit should be installed by a qualified mechanic. You can order the kit at wenproducts.com by searching part 56250i-HA36 for 3000 to 6000 feet above sea level or 56250i-HA68 for 6000 to 8000 feet above sea level. Refer to the instructions included with your altitude kit for more information about installation.

  • Page 16: Operation & Maintenance

    STARTING YOUR GENERATOR Before starting the generator, make sure you have read and performed the steps in the “Generator Preparation” section of this manual. If you are unsure about how to perform any of the steps in this manual please call 1-847- 429-9263 M-F 8-5 CST for customer service.

  • Page 17: Before Starting The Generator

    STARTING YOUR GENERATOR BEFORE STARTING THE GENERATOR Fig. 8 1. Verify that the generator is outside on a dry, level surface. Allow at least two feet of clearance on all sides of the generator. 2. To maximize safety, check that the generator is properly grounded. See page 15, “GROUND THE GENERATOR.”...

  • Page 18: Using Your Generator

    USING YOUR GENERATOR CALCULATING THE WATTAGE OF YOUR DEVICE(S) Connect electrical devices running on AC current according to their wattage requirements. Calculate the total run- ning wattage and starting wattage of the device(s) you wish to connect, and MAKE SURE that they are within the capacity of your generator and the capacity of each individual outlet.
  • Page 19 USING YOUR GENERATOR CALCULATING THE WATTAGE OF YOUR DEVICE(S) - CONTINUED The chart below serves as a reference for the estimated wattage requirements of common electrical devices. How- ever, do not solely rely on this chart - all electronics and appliances are built differently. Always check the wattage listed on the electrical device before consulting this chart.

  • Page 20: Connecting Electrical Devices

    USING YOUR GENERATOR CONNECTING ELECTRICAL DEVICES When the rated wattage requirement of each electrical device has been determined, add these numbers to find the total rated wattage needed. If this number exceeds the rated wattage (1900W) of the generator, DO NOT connect all these devices.

  • Page 21: Parallel Operation

    NOTE: The generator automatically turns Eco-Mode ON when it starts up. PARALLEL OPERATION The parallel connection ports allow you to connect two WEN generators to increase the total available electrical power. The WEN Parallel Connection Kit can be purchased from wenproducts.com. Follow the instructions in- cluded with your parallel connection kit for proper installation and operation.

  • Page 22: Some Notes About Power Cords

    USING YOUR GENERATOR SOME NOTES ABOUT POWER CORDS Long or thin cords can drain the power provided to an electrical device by the generator. When using such cords, allow for a slightly higher rated wattage requirement by the electrical device. Device Requirements Max.

  • Page 23: Shutting Off Your Generator

    SHUTTING OFF YOUR GENERATOR CAUTION! Unplugging running devices can cause damage to the generator. Never stop the engine with elec- trical devices connected and running. OPTION 1: AUTOMATIC FUEL SHUTOFF Fig. 11 1. Turn off all electrical devices and then unplug the devices from the generator.

  • Page 24: Cleaning The Generator

    MAINTENANCE Proper routine maintenance of the generator will help prolong the life of the machine. Please perform maintenance checks and operations according to the schedule in Table 4. CAUTION! Never perform maintenance operations while the generator is running. Before maintaining or servicing the generator, turn OFF the generator, disconnect all devices and allow the generator to cool down.

  • Page 25: Checking/Adding Oil

    6. Reinstall the oil access cover. TIP: Your WEN generator is compatible with the WEN 55201 Magnetic Oil Dipstick (not included), available for purchase at wenproducts.com. The dipstick’s industrial-strength magnetic tip will collect metal shavings from your generator’s oil tank to help preserve the engine and extend your generator’s lifespan.

  • Page 26: Draining The Carburetor

    MAINTENANCE DRAINING THE CARBURETOR We recommended draining the carburetor after every use (not necessary if the generator is shut off using the “FUEL OFF” option), and before storing the generator. Draining the carburetor can prevent the fuel from clogging up the carburetor and preventing the generator from starting. 1.

  • Page 27: Air Filter Maintenance

    If the air filter element has been damaged, replace it with a new one. Replacement air filters can be ordered from wenproducts.com by searching part no. 56250i-0504. 4. Reinstall the air filter element, air filter cover and side panel.
  • Page 28 MAINTENANCE DRAINING/CHANGING OIL Fig. 17 Change the oil according to the Recommended Maintenance Schedule in Table 4. Change the oil MORE OFTEN if operating under heavy load or high ambient temperatures. It is also necessary to drain the oil from the crankcase if it has become contaminated with water or dirt.

  • Page 29: Spark Plug Maintenance

    MAINTENANCE SPARK PLUG MAINTENANCE Refer to Recommended Maintenance Schedule in Table 4 for maintaining the spark plug. The spark plug is important for proper engine operation. Check the spark plug regularly to maintain proper engine operation. A good spark plug should be intact, free of deposits, and properly gapped. To inspect or replace the spark plug: Fig.

  • Page 30: Spark Arrestor Maintenance

    3. Carefully clean and remove the carbon deposits from the spark arrestor screen with a wire brush. Replace the spark arrestor if it is damaged (replacement spark arrestors can be purchased from wen- products.com by searching the part no. 56250i-0802.1).

  • Page 31: Transportation & Storage

    TRANSPORTATION & STORAGE TRANSPORTING THE GENERATOR To prevent fuel spillage when transporting, be sure to perform the following: 1. Tighten the fuel cap and turn the vacuum relief valve to “OFF”. 2. Set the engine switch to “OFF”. 3. Drain the fuel tank if possible (see “DRAINING THE FUEL TANK”). 4.

  • Page 32: Troubleshooting Guide

    TROUBLESHOOTING GUIDE WARNING! Stop using the generator immediately if any of the following problems occur or risk serious per- sonal injury. If you have any questions, please contact our customer service at 1-847-429-9263, M-F 8-5 CST or email us at techsupport@wenproducts.com. PROBLEM POSSIBLE CAUSE SOLUTION...

  • Page 33: Wiring Diagram

    WIRING DIAGRAM...

  • Page 34: Exploded View & Parts List

    Not all parts may be available for purchase. FIG. 1 - CRANKCASE FIG. 2 - CYLINDER HEAD AND COVER Part No. Description Qty. Part No. Description Qty. 56250i-0101 Bolt, M6x22 56310i-0209 Bolt, M6x16 56250i-0102 Crankcase Cover 56200-0814 Breather Tube Crankcase Cover...
  • Page 35 FIG. 3 - CRANKSHAFT AND FIG. 4 - CAMSHAFT AND VALVES CONNECTING ROD Part No. Description Qty. Part No. Description Qty. Crankshaft 56250i-0401 Camshaft Assembly 56250i-0301 Assembly 56200-1103 Valve Tappet 56250i-0302 Connecting Rod 56250i-0403 Valves Set 56200-1004 Piston Pin Clip...
  • Page 36 EXPLODED VIEW & PARTS LIST FIG. 5 - RECOIL STARTER FIG. 6 - CARBURETOR ASSEMBLY Part No. Description Qty. Part No. Description Qty. 56250i-0601 Stud Bolt, M6x92 56310i-0209 Bolt, M6x16 Recoil Starter Carburetor Insulator 56250i-0502 56250i-0602 Assembly Gasket 56250i-0503 Shroud...
  • Page 37 EXPLODED VIEW & PARTS LIST Part No. Description Qty. FIG. 7 - ALTERNATOR Flanged Hex Bolt, 56200-0502 M6x14 56250i-0702 Impeller Gasket Flywheel Nut, 56200-1601 M12-1.25 56250i-0704 Impeller 56250i-0705 Rotor 56250i-0706 Stator Flanged Hex Bolt, 56380i-0313 M6x12 56250i-0708 Wiring Clamp 56250i-0709...
  • Page 38 EXPLODED VIEW & PARTS LIST FIG. 10 - CONTROL PANEL Part No. Description Qty. Part No. Description Qty. Flanged Hex Bolt, 56250i-1013 Multimeter 56250i-1001 M6x14 56380i-1432 Rectifier 56250i-1002 Hose Clamp DF250iX-1124 USB Outlet 56250i-1003 Fuel Valve Manual Shutdown 56380i-1431 Control Panel...
  • Page 39 EXPLODED VIEW & PARTS LIST FIG. 11 - HOUSING Part No. Description Qty. Part No. Description Qty. 56250i-1101 Left Side Panel 56250i-1109 Engine Cushion 1 56250i-1102 Left Housing 56200-0515 Fuel Line Bushing 56250i-1103 Right Housing 56250i-1111 Clip Nut, M6 56250i-1104...
  • Page 40 FIG. 12. BOTTOM PLATE FIG. 13. MUFFLER COVER Part No. Description Qty. Hex Step Bolt, 56250i-1301 M5x14 Part No. Description Qty. 56250i-1302 Muffler Cover Panel Engine Frame 56200-0507 56250i-1303 Muffler Cover Seal Cushion M6x10.5 56200-0427B Spring Clamp Flanged Hex Bolt, 56250i-1202 M6x12...

  • Page 41: Warranty Statement

    (3) years from date of purchase or 500 hours of use; whichever comes first. Ninety days for all WEN products if the tool is used for profes- sional or commercial use.
  • Page 42 NOTES...
  • Page 43 NOTES...
  • Page 44 THANKS FOR REMEMBERING V. 2024.11.12...

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