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Mi-T-M GH-2403-3MGH - User Manual

Mi-T-M GH-2403-3MGH
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GH-Series Operator's Manual 1
©Copyright 2005, Grainger #37-0763-E/S-050107
OPERATION MANUAL FOR
GH-2403-3MGH
GH-3003-3MGH
GH-3004-0EGH
GH-3504-0EGH
(GrainGEr iTEM #3WE17, #3WB80, #3WB81 anD 3WB82)
HOT WATER
PRESSURE WASHER
CAUTION
RISK OF INJURY!
READ MANUAL BEFORE OPERATING!
This manual is an important part of the
pressure washer and must remain with this unit!
MANUFACTURED FOR W.W. GRAINGER INC.
FOR CUSTOMER SERVICE CALL
1-800-648-8478
®
C US
201473

Table of Contents

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Questions and Answers

  • A
    Alexis SanchezAug 21, 2025
    Why won't the burner ignite on my Mi-T-M Pressure Washer?
    • Y
      yvette59Aug 21, 2025
      If your Mi-T-M Pressure Washer's burner will not ignite, try the following: 1. Ensure the burner switch is turned on. 2. Refuel if the unit is out of fuel. 3. Open the trigger gun to allow for pressure. 4. Adjust or replace the EMF drive belt if it's loose or broken. 5. Replace the flexible coupler if broken. 6. Drain or replace the fuel filter/water separator if it's dirty or clogged. 7. Tighten all fuel intake connections to prevent the fuel pump from sucking air and eliminate any leaks in the intake line. 8. Check the fuel pump pressure and replace if needed. 9. Replace the fuel nozzle if it's dirty or clogged. 10. Ensure pressure is over 250 PSI/18 Bar to allow burner to come on. 11. Allow unit to cool down before reigniting.
  • M
    mooremarkAug 25, 2025
    How to fix detergent will not siphon into Low Pressure Detergent mode in Mi-T-M Pressure Washer?
    • M
      Monica AndersonAug 25, 2025
      If the detergent is not siphoning into the low-pressure detergent mode on your Mi-T-M Pressure Washer, check these items: * Ensure the detergent strainer is fully submerged in the detergent solution. * Inspect, clean, or replace the detergent strainer if it's obstructed. * Inspect, clean, or replace the detergent hose if it's cut, obstructed, or kinked. * Open the detergent adjusting knob. * If your unit has an adjustable grip on a dual lance, turn the grip clockwise to move to low pressure. * Clean or replace the nozzle assembly if it's plugged. * Use one high-pressure hose extension maximum. * Remove, clean, or replace the ball & spring in the venturi if stuck.
  • A
    Alexis RoweAug 26, 2025
    What to do if water is leaking from Heat Dump Valve in Mi-T-M Pressure Washer?
    • Z
      zharrisAug 26, 2025
      If your Mi-T-M Pressure Washer is leaking water from the heat dump valve, it could be due to the following reasons: * The water temperature is too high. To resolve this, avoid operating the unit in bypass mode (with the trigger gun closed) for more than three minutes. * The valve is defective. In this case, replace the valve.
  • V
    vbradfordAug 28, 2025
    Why does the burner run erratically on my Mi-T-M Pressure Washer?
    • J
      Julie RyanAug 28, 2025
      If the burner on your Mi-T-M Pressure Washer runs erratically, consider these potential causes: * Water in the fuel oil: Drain the fuel filter/water separator and fuel tank, then replace with clean fuel. * Dirty fuel filter/water separator: Replace the element. * Dirty fuel nozzle: Replace the nozzle. * Fuel pump malfunctioning: Replace the pump.
  • M
    Marcus BriggsAug 30, 2025
    Why burner runs, but will not heat in Mi-T-M Pressure Washer?
    • B
      Brianna ShermanAug 30, 2025
      If your Mi-T-M Pressure Washer burner runs but doesn't heat, check the following: * Ensure you are using the correct fuel. If necessary, drain the tank and filter, then refill with the proper fuel. * Check the fuel pump pressure and replace the pump if needed. * Replace the fuel nozzle if it's dirty.
  • C
    Connie GaySep 1, 2025
    What causes water to flow back into the detergent container on a Mi-T-M Pressure Washer?
    • J
      Julia RomeroSep 1, 2025
      If water flows back into the detergent container of your Mi-T-M Pressure Washer, the ball & spring in the venturi may be reversed, missing, or corroded. Remove, clean, or replace these components.
  • J
    Jacob ClarkSep 3, 2025
    Why does the oil appear milky or foamy in my Mi-T-M Pressure Washer?
    • S
      spenceangelSep 3, 2025
      If your Mi-T-M Pressure Washer's oil appears milky or foamy, it indicates water in the oil. Change the pump oil and fill it to the proper level.
  • A
    amandapalmerSep 5, 2025
    What to do if water is leaking under heat exchanger coil in Mi-T-M Pressure Washer?
    • M
      Meghan WestSep 5, 2025
      If water is leaking under the heat exchanger coil of your Mi-T-M Pressure Washer, it could be due to these reasons: * The coil drain plug is not installed. Install the plug. * The safety relief device is relieving pressure due to an unloader or pressure switch problem. Detect and correct the unloader or pressure switch problem and replace the safety relief device.
  • A
    Alexander FletcherSep 8, 2025
    Why does my Mi-T-M Pressure Washer burner discharges white smoke?
    • S
      Samantha LeSep 8, 2025
      If your Mi-T-M Pressure Washer discharges white smoke, it means it is low on fuel. Refuel the unit. If the white smoke persists, consult Service.
  • D
    Diane JonesSep 10, 2025
    What causes black smoke from the burner of my Mi-T-M Pressure Washer?
    • K
      Krista JohnsonSep 10, 2025
      If your Mi-T-M Pressure Washer discharges black smoke, it indicates an insufficient air supply. Adjust the air supply as shown on page 18.

Mi-T-M GH-2403-3MGH Specifications

General IconGeneral
ModelGH-2403-3MGH
CategoryPressure Washer
Power SourceGasoline
Engine Displacement196cc
PSI2400
Weight93 lbs
Engine TypeOHV
EngineHonda GX200
Max Pressure2400 PSI
Flow Rate2.4 GPM
Pump TypeTriplex Plunger
PumpMi-T-M
Hose Length25 ft
Nozzles Included25°, 40°

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