GreenWorks 5100744 User Manual (English)

Questions and Answers:

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Keith McbrideAug 1, 2025
What to do if my GreenWorks 5100744 motor will not start?
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  Kenneth HenryAug 1, 2025
  If the GreenWorks Pressure Washer motor won't start, first ensure the On/Off switch is in the “ON” ( | ) position and squeeze the gun trigger. Check that the power cord is properly plugged in. If using an extension cord, make sure it is either a 25’ (7.6 m) 14 AWG cord or a 50’ (15 m) 14 AWG cord. Try a different electrical outlet to ensure adequate power supply. Finally, if the pressure washer circuit breaker tripped, allow the unit to cool before restarting.
A
Andrea GrahamAug 11, 2025
Why is my GreenWorks 5100744 Pressure Washer not reaching high pressure?
- S
  Sarah RodriguezAug 11, 2025
  If your GreenWorks Pressure Washer isn't reaching high pressure, begin by checking the diameter of your garden hose; replace it with a 1” (25 mm) or 5/8” (16 mm) garden hose if necessary. Also, ensure that the water supply isn't restricted by checking the garden hose for any kinks, leaks, or blockages. Make sure you have enough water supply by fully opening the water source. If the pump is sucking air, turn the machine “OFF” and purge the pump by squeezing the trigger.
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anthony02Aug 21, 2025
How to fix fluctuating output pressure on GreenWorks Pressure Washer?
- K
  kristenloweryAug 21, 2025
  If the output pressure of your GreenWorks Pressure Washer varies from high to low, it could be due to an insufficient inlet water supply. Ensure the water is turned on fully and inspect the garden hose for kinks, leaks, or blockages. Another cause might be the pump sucking air. In this case, turn the machine “OFF” and purge the pump by squeezing the trigger.

GreenWorks 5100744 Specifications

General

Model	5100744
Power Source	Electric
Max Flow Rate	1.2 GPM
Type	Electric
Hose Length	20 feet
Power Cord Length	35 feet

Summary

Product Specifications

Universal Motor Specifications

Details about the electric motor, voltage, frequency, and amperage.

Pressure and Flow Rate

Specifies the maximum pressure (PSI) and flow rate (GPM) of the washer.

Cleaning Units and Temperature Limits

Information on cleaning units (CU) and maximum inlet water temperature.

Unit Weight

The physical weight of the pressure washer unit.

Important Safety Instructions

General Safety Precautions

Essential safety rules for operating the pressure washer safely.

Electrical Safety Features

Explains GFCI protection and servicing of double-insulated appliances.

Extension Cord Usage Guidelines

Rules for using extension cords safely with the pressure washer.

Save These Instructions

Reminder to keep the manual for future reference.

Specific Safety Rules

Safe Operation and Personal Protection

Product familiarity, keeping people away, dress, footwear, eye protection, recommendations.

Equipment Checks and Work Area Safety

Damaged parts, motor cleaning, follow recommendations, keep clean, check area, avoid environment.

Electrical Cord and GFCI Safety

Cord abuse, GFCI, polarized plug guidelines.

Extension Cord and Chemical Safety

Extension cord rules, chemical restrictions, jet stream warnings, exposure.

Symbols and Signal Words

Product Symbol Meanings

Explains various symbols used on the pressure washer for identification.

Signal Word Definitions

Defines DANGER, WARNING, and CAUTION signal words for risk assessment.

Service and Customer Support

Guidance on product servicing and contacting customer support for assistance.

Electrical Connection and Safety

Double Insulation and Power Requirements

Explains double insulation and specifies power supply voltage, frequency, and type.

Extension Cord Guidelines and Safety

Covers extension cord usage, gauge selection, and safety precautions.

Ground Fault Circuit Interrupter (GFCI)

Explains the function and limitations of the GFCI feature for electrical shock protection.

Know Your Pressure Washer

Component Identification

Identifies key parts of the pressure washer, including the detergent tank and trigger.

Key Features

Describes the GFCI plug, on/off switch, and trigger handle with lock-out.

Unpacking Procedure

Instructions for safely unpacking the product and checking contents.

Assembly Instructions

Unpacking and Inspection

Steps for inspecting the product for damage after unpacking.

Packing List Overview

Lists all components included in the package for verification.

Assembly Safety Warnings

Crucial warnings regarding product modification and connection before assembly completion.

Connecting Water Supply

How to connect the garden hose to the water main and pressure washer.

Wand and Hose Assembly

Attaching the spray wand, high-pressure hose, and detergent bottle.

Detergent Bottle and Accessory Installation

Connecting the detergent bottle and installing gun holder and cord clips.

Final Hose Connection and Operating Position

Securing the garden hose, operating position warnings, and pre-operation checks.

Operation

Pre-Operation and Detergent Use

General warnings, product applications, and instructions for adding detergent.

Starting, Stopping, and Trigger Control

Step-by-step guide to starting, stopping, and using the trigger with lock-out.

Nozzle Use and Soap Application

Instructions for changing nozzles and applying detergent for cleaning.

Moving the Pressure Washer

Steps to safely move the unit from one location to another.

Maintenance and Storage

General Maintenance and Nozzle Care

Advice on cleaning plastic parts, avoiding chemicals, and nozzle maintenance.

Storage and Winterizing Procedures

Proper storage conditions and steps for protecting the unit from cold weather.

Shutting Down and Cleaning Up

Steps for safely shutting down and cleaning the unit after use.

Taking a Break Procedures

Actions to take when leaving the pressure washer unattended.

Troubleshooting Guide

Motor and Pressure Issues

Common causes and solutions for motor start failures and low pressure.

Leak and Noise Problems

Solutions for leaks at hose connections, pump, wand, and noisy pump operation.

Motor Hum and Water Supply Issues

Diagnosing motor humming without running and no water supply problems.

Warranty Information

Warranty Coverage and Exclusions

Explains the duration, scope of the product warranty, and items not covered.

Transportation Charges Policy

Outlines the purchaser's responsibility for shipping costs for warranty claims.

Parts List and Identification

Exploded View of Parts

A visual diagram showing the assembly of the pressure washer components.

Detailed Parts List

A table listing each part with its number, part number, description, and quantity.

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