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North Star 157115 - User Manual

North Star 157115
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M157115F
Owner’s Manual
Instructions for Set-up, Operation, Maintenance & Storage
HOT WATER/STEAM PRESSURE WASHER 3000 PSI / 4.0 GPM
Portable Outdoor-Use Only
This pressure washer produces both cold and hot water high-pressure spray as well as wet steam. Cleaning
chemicals may be incorporated into the spray if desired. The pressure pump for this equipment is powered
by a gasoline internal combustion engine and the water is heated by a diesel, kerosene/fuel-oil fired, down
draft burner.
WARNING READ THIS MANUAL
READ and UNDERSTAND this Owner’s Manual and the Engine Owner’s Manual completely
before attempting to set up and use the pressure washer! Failure to properly set up, operate, and
maintain this pressure washer could result in serious injury or death to operator or bystanders.
WARNING SPECIAL HAZARDS
CO Poisoning
Exhaust from both the engine and burner contains carbon monoxide, a
poisonous gas that can cause carbon monoxide poisoning and possible death
if inhaled. ONLY run pressure washer OUTDOORS and at least 20 feet from
the home, away from windows, vents and air intakes, to allow proper
ventilation. If you start to feel sick, dizzy, or weak while using the pressure
washer, shut off the engine and get to fresh air RIGHT AWAY.
Skin/Eye Injury
High-pressure spray can cause serious skin or eye injury, including injection
injury if fluid pierces the skin. Injection injury can result in blood poisoning
and/or severe tissue damage.
Burns
Hot spray can scald and burn skin.
Hot surfaces of wand, engine and burner, as well as hot exhaust from
both the engine and burner can cause burns.
Slips/FallsNOTE
Spray discharge can cause puddles and slippery surfaces.
Spray-gun kickback can cause operator loss of balance and falls.
Flying Debris
High-pressure spray can cause surface damage and flying debris.
Fire/
Explosion
Engine and burner sparking can ignite fuel or other flammable liquids
or vapors in the vicinity.
Hot exhaust from engine and burner can ignite combustible materials.
Chemical Exposure
Cleaning chemical vapors or contact with skin may be hazardous.
Electric shock
Spray contact with electrical sources can cause electric shock.
A summary of important safety information is provided at the end of the manual.
Any Questions, Comments, Problems, or Parts Orders
Call NorthStar Product Support 1-800-270-0810
ITEM NUMBER: 157115
SERIAL NUMBER: _____________

Questions and Answers

  • J
    jamie91Aug 4, 2025
    What to do if my North Star Pressure Washer runs but the burner doesn’t fire?
    • M
      Mr. Grant SimonAug 4, 2025
      If your North Star Pressure Washer runs but the burner doesn’t fire, first ensure the heat switch is turned ON and the thermostat is set to the desired temperature. Other possible causes include a broken or slipping belt for the air fuel delivery system (replace or tighten the belt), blocked or restricted air intake (inspect and remove any blockages), or air leaks (inspect the rubber boot and connections between the heat exchanger and blower for leaks, replacing the boot or tightening connections). Also check if the fuel tank is empty (fill with kerosene, diesel, or fuel oil) or if the fuel filter water separator is clogged (drain or replace if needed). A clogged fuel nozzle should be replaced. If the trigger gun is not open, open it to allow flow.
  • J
    joshua98Aug 9, 2025
    How to troubleshoot North Star Pressure Washer when the engine will not start?
    • J
      Joseph PerezAug 10, 2025
      If your North Star Pressure Washer engine won't start, make sure the engine has the adequate amount of oil. If the engine is cold, choke it to start. Also, ensure there is fuel in the engine and the fuel shutoff valve is open. Finally, check that the spark plug wire is securely attached to the spark plug.
  • D
    David WallsAug 15, 2025
    Why does my North Star 157115 run but have no pressure?
    • J
      johnstephensAug 15, 2025
      If your North Star Pressure Washer runs but produces no pressure, the issue might stem from several causes. Start by checking the nozzle for clogs or damage; clean or replace it as needed. Ensure that the water supply provides more than 4.8 gpm. Inspect the inlet filter for clogs and clean or replace it. Other potential issues include a stuck-open easy start valve (clean or replace), damaged or obstructed pump valves (clean or replace), worn pump packings (replace pump packings), or a malfunctioning unloader (repair or replace).
  • J
    Jennifer WalkerAug 19, 2025
    Why is there smoke from the heat exchanger of my North Star 157115?
    • M
      Margaret WilliamsAug 19, 2025
      If you see smoke coming from the heat exchanger of your North Star Pressure Washer, ensure the engine is running at full throttle. Also, make sure the damper is properly adjusted for a clean burn. Using high-quality fuel, such as kerosene, can also help. Check the belt and replace it if broken.
  • J
    jonessuzanneAug 25, 2025
    What causes a North Star 157115 Pressure Washer to surge or cycle while in bypass?
    • T
      tanya02Aug 25, 2025
      If your North Star Pressure Washer surges or cycles while in bypass mode, check all connections between the unloader and gun for leaks. Tighten any loose components and replace damaged ones. If the gun is leaking internally, replace the spray gun.
  • B
    Brett YoungAug 29, 2025
    How to fix poor or no detergent supply on a North Star 157115 Pressure Washer?
    • J
      Jacob ChapmanAug 30, 2025
      If you're experiencing poor or no detergent supply with your North Star Pressure Washer, first ensure that the detergent container has an adequate supply and that the chemical strainer is fully submerged. If you're using a long high-pressure hose, try using less hose or moving the machine closer to your work. Also, check the chemical strainer and injector for clogs; clean them and always run clean water through the injector after each use.

Summary

Introduction, Specifications, and Components

About Your Pressure Washer

Describes the pressure washer's capabilities and intended use.

Product Specifications

Lists technical details like pressure rating, flow rate, and dimensions.

Component Identification

Identifies key parts of the machine with reference numbers.

Critical Safety Information and Warnings

Special Hazards and Warnings

Highlights specific dangers like CO poisoning, burns, and fire hazards.

Hazard Signal Word Definitions

Explains the meaning of DANGER, WARNING, and CAUTION alert symbols.

Safety Features and Worksite Selection

Details safety devices and criteria for choosing a safe operating location.

Setup, Operation, and Storage Procedures

Assembly and Initial Set-Up

Guides through unpacking, inspection, and initial assembly steps.

Before Each Use Checks and Fueling

Outlines essential checks and fueling procedures before operating the machine.

Pressure Washer Operation Guide

Step-by-step instructions for connecting, spraying, and stopping the unit.

Storage and Winterization

Procedures for preparing and storing the pressure washer for different conditions.

Maintenance, Troubleshooting, and Parts

Burner Adjustment Procedures

Instructions for adjusting the burner for optimal performance.

Routine Maintenance Schedule

Covers periodic tasks for keeping the machine in safe working order.

Troubleshooting Common Issues

Provides solutions for common problems like starting, pressure, or burner issues.

Major Components and Parts Breakdown

Overview and detailed diagrams of major machine components.

Technical Diagrams and Warranty Information

Wiring Diagram

Illustrates the electrical connections and components of the control system.

Limited Warranty Details

Details the warranty periods and terms for various parts of the machine.

California Proposition 65 Warning

Provides health warnings related to chemical exposure from the product.

North Star 157115 Specifications

General IconGeneral
BrandNorth Star
Model157115
CategoryPressure Washer
LanguageEnglish

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