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Kärcher HDS 10/20 M - Service Manual

Kärcher HDS 10/20 M
131 pages
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English 5.906-432.0 Rev. 00 (06/15) 1
HDS 7/12 M, HDS 8/18 M,
HDS 9/18 M, HDS 10/20 M,
HDS 12/18 S, HDS 13/20 S
Service Manual

Table of Contents

Questions and Answers

  • M
    meghan03Aug 20, 2025
    What to do if the thermal motor protection switch (WSK) in my Kärcher Pressure Washer motor has tripped?
    • B
      Brenda FarrellAug 20, 2025
      If the thermal motor protection switch (WSK) in your Kärcher Pressure Washer motor has tripped, switch off the device and allow the motor to cool down.
  • K
    Katelyn ChenAug 22, 2025
    What to do if my Kärcher Pressure Washer winding protection contact was triggered?
    • B
      bwallerAug 22, 2025
      If the winding protection contact was triggered on your Kärcher Pressure Washer, switch off the appliance and let it cool down. Remove the cause of the problem, then turn the appliance on again.
  • J
    Jesse PrattAug 25, 2025
    Why is my Kärcher Pressure Washer water pressure too low?
    • R
      Regina MontgomeryAug 25, 2025
      If the water pressure of your Kärcher Pressure Washer is too low, you should check and raise the water input amount. Also, inspect, clean, or replace the water fine filter. Vent the appliance, and check or replace the high-pressure nozzle. Furthermore, examine or replace the pressure and suction valves, and check, adjust, or replace the overflow and safety valves.
  • I
    igutierrezAug 26, 2025
    What to do if my Kärcher Pressure Washer is not heating water?
    • D
      David BurchAug 27, 2025
      If your Kärcher Pressure Washer isn't heating water, begin by checking and correcting the temperature setting. If the water shortage safeguard is off, ensure a sufficient water supply or repair the safeguard. Check and refill the fuel level in the tank. Inspect or replace the solenoid valve fuel pump and fuel filter. Check and correct the fuel pump setting and fuel nozzle. Inspect or replace ignition cables, correct the distances of the ignition electrodes, repair the burner blower, and correct the setting of the air flap.
  • G
    Gary BowersAug 28, 2025
    What to do if Kärcher Pressure Washer pump is vibrating?
    • H
      hamiltonpamelaAug 28, 2025
      If your Kärcher Pressure Washer pump is vibrating, check the pump for any leaks and fix them. Also, vent the appliance.
  • B
    Brian BlackburnAug 30, 2025
    What to do if my Kärcher Pressure Washer has a water shortage (dry running after 2 minutes)?
    • R
      Rebecca GreeneAug 30, 2025
      If your Kärcher Pressure Washer experiences a water shortage, shown as dry running after 2 minutes, open the tap and ensure there is an adequate water supply.
  • C
    Casey KimSep 1, 2025
    Why is there pressure reduction in the HP system of my Kärcher Pressure Washer?
    • D
      Daniel GilesSep 1, 2025
      If you notice a pressure reduction in the HP (High Pressure) system of your Kärcher Pressure Washer, check the trigger gun and O-rings on the high-pressure hose for leaks and replace if necessary. Also, check the pressure holding valve for leaks and replace the O-rings. Additionally, inspect, adjust, or replace the overflow valve, and check or replace the pressure switch and control piston.
  • C
    Christopher SalazarSep 2, 2025
    What to do if my Kärcher Pressure Washer is not running and all 10 LEDs are blinking?
    • A
      Audrey CampbellSep 2, 2025
      If, during operation, all 10 LEDs are blinking at the same time and the device switches off on your Kärcher Pressure Washer, check the service switch and ribbon cable.
  • A
    Ashley Berger PhDSep 4, 2025
    How to fix inadequate detergent function in Kärcher Pressure Washer?
    • B
      Bradley MosleySep 4, 2025
      To fix an inadequate or non-existent detergent function in your Kärcher Pressure Washer, check and correct the dosing valve setting. Also, inspect and clean the detergent tank, and check, clean, or replace the detergent filter. Finally, check or replace the detergent hose, dosing valve, and detergent inlet at the cylinder head.
  • E
    elucasSep 6, 2025
    What to do if my Kärcher Pressure Washer exhaust temperature is too high?
    • J
      Jay JohnsonSep 6, 2025
      If the exhaust temperature of your Kärcher Pressure Washer is too high, perform maintenance on the burner.

Summary

Safety Instructions

Hazard Levels Identification

Defines hazard levels (Danger, Warning, Caution) for user safety.

Parts of the System

Operator Console Layout and Indicators

Details the operator console, including program switch and LED indicators.

Functionality and Operation

Service Switch Operation

Instructions for using the service switch to set water hardness and access functions.

Pump Assembly and Safety Systems

Details pump assembly, safety blocks, water shortage safeguards, and safety valves.

Pressure Switch Functional Description

Explains the function of pressure switches in various operating states.

Basic Settings and Service Procedures

Safety Valve Adjustment Procedure

Instructions for adjusting the safety valve to set the correct pressure.

Service Functions via LED Display

How to access and use service functions via the control panel's LED indicators.

Error Memory Diagnostics

How to read and interpret error messages stored in the device's memory.

Burner Settings and Adjustments

Instructions for adjusting fuel pressure, soot value, and CO2 content.

Working Pressure Adjustment Procedures

Guides for setting maximum and minimum working pressure with different guns.

Troubleshooting

General Error Resolution

Lists common problems like no running, low pressure, and no heating with solutions.

Service Demand Error Messages

Explains error messages that require immediate service intervention.

Kärcher HDS 10/20 M Specifications

General IconGeneral
Flow Rate500-1000 l/h
Power7.8 kW
Fuel Tank Capacity25 l
Dimensions1330 x 750 x 1060 mm
Fuel Oil Consumption6.4 kg/h
Voltage400 V
Frequency50 Hz
Hose Length10 m
Nozzle IncludedYes
Pressure30-200 bar
Max. Temperature80-155 °C

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