Read these original operating instructions and the enclosed safety instructions before using the device for the first time. Proceed accordingly.

Keep both books for future reference or for future owners.

The gas supply company and the district chimney sweep should be consulted before the device is installed.

The regulations of building law, commercial law and emissions protection law must be observed during installation. We draw your attention to the regulations, directives and standards listed below:

• The device may only be installed by a specialised company in accordance with the relevant national regulations.

• The respective national regulations set by the legislator must be observed during the electrical installation.

• Adjustments, maintenance work and repairs to the burner may only be carried out by trained Kärcher service technicians.

• The locally applicable regulations must be adhered to when planning a chimney.

The device is used to switch the system on and off and to set the water temperature. The detergent dosage can also be set and error messages can be viewed.

Depending on the system design, further workstations are located at the accessory devices (spraying devices), which are connected to the tapping points. Remote controls can optionally be installed at these workstations.

The safety devices are set and sealed by the manufacturer. Adjustments are performed only by customer service.

The water shortage safeguard (flow switch) prevents the burner from overheating and dry running of the HP-pump in the case of a water shortage. If the water supply is insufficient, the device switches off.

The pressure switch switches the device off if the maximum working pressure is exceeded.

If the maximum permissible system pressure is exceeded, the safety valve opens to relieve the pressure in the system. The safety valve is adjusted and sealed at the factory. The adjustment is performed only by customer service.

The flame monitoring system monitors the brightness of the flame on the burner and switches the burner off in the event of a fault.

The motor of the high-pressure pump is protected by the electronics and a winding circuit breaker.

If the emission temperature rises above the permissible value, the emission temperature limiter switches the burner off and locks it.

The temperature limiter switches the burner off when the temperature is too high.

The air pressure switch switches off the burner as soon as the fan fails to generate air pressure.

The emission pressure switch switches off the burner if an impermissibly high back pressure is created in the emission system, e.g. in the event of a blockage.

After switching off the device via the high-pressure gun, a solenoid valve located in the high-pressure system opens after the operating standby time has elapsed. This reduces the pressure built up in the high-pressure system.

The safety catch on the high-pressure gun prevents the device from being switched on inadvertently.

If the device is not used for 30 minutes, the device switches off. The readiness time can be activated and deactivated by customer service via the service menu.

The packing materials can be recycled. Please dispose of packaging in accordance with the environmental regulations.

Electrical and electronic devices contain valuable, recyclable materials and often components such as batteries, rechargeable batteries or oil, which - if handled or disposed of incorrectly - can pose a potential danger to human health and the environment. However, these components are required for the correct operation of the device. Appliances marked by this symbol are not allowed to be disposed of together with the household rubbish.

Kärcher detergents are separator-friendly (ASF). That means the function of an oil separator is not impaired. A list of recommended detergents can be found in Chapter Accessories and spare parts.

Current information on content materials can be found at: www.kaercher.de/REACH

• The device is used to remove dirt from surfaces using a free-flowing water stream. It is used in particular for cleaning machines, vehicles and facades.

• The system must be installed so that the rear opening is closed, for example by a wall.

• Only clean water may be used as a high-pressure medium. Contamination leads to premature wear and tear or deposits in the device.

The following limit values apply to the water supply:

• pH value: 6.5-9.5

• Electrical conductivity: Conductivity of fresh water + 1200 µS/cm, maximum conductivity 2000 µS/cm

• Settleable particles (sample volume 1 l, settling time 30 minutes): < 0.5 mg/l

• Filterable particles: < 50 mg/l, no abrasive substances

• Hydrocarbons: < 20 mg/l

• Chloride: < 300 mg/l

• Sulphate: < 240 mg/l

• Calcium: < 200 mg/l

• Total hardness: < 28 °dH, < 50° TH, < 500 ppm (mg CaCO₃/l)

• Iron: < 0.5 mg/l

• Manganese: < 0.05 mg/l

• Copper: < 2 mg/l

• Active chloride: < 0.3 mg/l

• Free of unpleasant odours

Only use original accessories and original spare parts. They ensure that the appliance will run fault-free and safely.

Information on accessories and spare parts can be found at www.kaercher.com.

Detergents make cleaning tasks easier and a selection of detergents is shown in the table. The instructions on the packaging must be observed before using the detergents.

* Separator-friendly

** only for short use, two-step method, rinse with clear water.

During unpacking, check the contents for completeness. In the event of shipping damage, please notify your dealer.

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1. Cover, left
2. Filling point for system care
3. Cover, right
4. Control panel + electrical box
5. Cover fastening screws, right
6. Cover fastening screws, left
7. Fuel filter
8. Terminal box of motor
9. Filling point for pump oil
10. Fuel line (supply + return)
11. Water inlet
12. High-pressure outlet
13. Pressure tank
14. System care setting + service switch
15. Fresh water filter
16. Safety block
17. Float tank with system care container
18. Exhaust gas outlet
19. Booster heater
20. Standard nozzle

The following attachment kits are available separately:

• Remote control (not shown)

• Pressure relief (not shown)

• Second detergent + dosage

• Steel floor structure (not shown)

• Water inlet solenoid valve (not shown)

• Operating hours counter + pressure gauge

• The cold water reaches the suction side of the high-pressure pump via the motor cooling coil and the float tank. System car (RM 110) is dosed into the float tank. Depending on the water hardness, this can be adjusted by customer service as required. The pump conveys water and detergent sucked in through the instantaneous water heater. The proportion of detergent in the water can be adjusted using a dosing valve. The instantaneous water heater is heated by a burner.

• The high-pressure outlet is connected directly to a high-pressure hose or to an existing high-pressure network in the building. The high-pressure gun is connected to the tapping points of this network using a high-pressure hose.

• The heating equipment in the device is a firing system. The locally applicable regulations must be observed during installation.

• Only use tested chimneys and exhaust gas pipes.

• When installing a fuel oil tank in the device installation room, observe the regulations on the storage of flammable liquids.

Provide a two-pipe system with supply and return lines for the fuel lines.

• Maximum heating oil pre-pressure: 0.05 MPa (0.5 bar)

• Maximum negative pressure between heating oil filter and pump: 0.04 MPa (0.4 bar)

• Before the initial startup of the device, connect the external fuel lines to the device and supply them with fuel. This also applies to cold water operation, as otherwise the fuel pump will no longer be lubricated and will fail after a short time.

• The components for air/exhaust gas system are not included with the device. Observe the local regulations for building installation.

• Each device must be connected to its own chimney.

• Carry out the exhaust gas routing in accordance with local regulations and in consultation with the responsible chimney sweep.

• Check the load capacity of the wall before installation. Use suitable plugs and screws for concrete, cavity block, brick and aerated concrete walls,e.g. an injection anchor.

• The device must not be rigidly connected to the water supply or high-pressure pipework. The connecting hoses must always be fitted.

• Provide a stopcock between the water pipe network and the connecting hose.

---

Observe the relevant national regulations when installing the high-pressure lines.

• The pressure drop in the pipework must be less than 1.5 MPa.

• The finished pipework must be tested at 32 MPa.

• The insulation of the pipework must be temperature-resistant up to 100°C.

1. Set up the containers so that the lower level of the detergent is not more than 1.5 m below the base of the device and the upper level is not above the base of the device.

Remote controls can be connected between the device and the tapping points. These allow the device to be operated directly at the tapping point.

Various mounting kits for remote controls are available depending on the application.

	Function	Description
	Reset	After the standby time has elapsed, the device can be restarted directly at the tapping point.
	Emergency off
	On/Off + detergent (turn switch) Single workstation	Switching the device on and off at the tapping point. Activation of the hot water function (burner switches on). Selection of whether detergent should be added: No admixture, admixture RM 1 or admixture RM 2, as set on the device.
	On/Off + detergent (push buttons) up to 5 spots	Switching the device on and off at the tapping point. Activation of the hot water function (burner switches on). Selection of whether detergent should be added: No admixture, admixture RM 1 or admixture RM 2 (option), as set on the device.

---

1. Connect the water inlet to the water pipe network using a suitable hose.

• The capacity of the water supply must be at least 1300 l/h at a minimum of 0.15 MPa.

• The water temperature must be under 30 °C.

• If the "Solenoid valve water inlet" attachment kit is installed, the valve blocks the water inlet until water is required at a tapping point or the device is switched on.

• For connected loads, see technical data and type plate.

• The electrical connection must be carried out by an electrician and comply with IEC 60364-1.

• All live parts, cables and devices in the work area must be in proper condition and be protected against water jets.

Device with ANTI!Twist: Attach the yellow high-pressure hose connection to the high-pressure gun.

1. Connect the spray lance to the high-pressure gun and hand-tighten (EASY!Lock).

   ---

   

2. Plug the high-pressure nozzle onto the spray lance.

3. Fit the union nut and hand-tighten (EASY!Lock).

4. Device without a hose reel: Connect the high-pressure hose to the high-pressure gun and high-pressure connection of the device and tighten hand-tight (EASY!Lock).

5. Device with a hose reel: Connect the high-pressure hose to the high-pressure gun and hand-tighten (EASY!Lock).

   ATTENTION

   Rolled-up high-pressure hose

   Risk of damage

   Fully unroll the high-pressure hose before starting operation.

1. Ensure the water inlet is OK.

2. Remove the detergent suction from the device.

3. Connect the heating oil.

4. Ensure the power supply is OK.

1. Determine the local water hardness via the local supply company or with a hardness tester (order number 6.768-004.0).

2. Set the system care dosage using the turn switch on the control panel.

• The system care is a highly effective agent for preventing calcification of the heating coil when operating with calcareous tap water. This is drip-fed dosed into the float container.

• The dosage is set to medium water hardness at the factory and can be adjusted to the water hardness on site if necessary.

1. Refill the system care.

• If the high-pressure gun is closed during operation, the device will switch off.

• If the gun is opened again within the activatable standby time (30 minutes), the device restarts automatically.

• If the operating standby time is exceeded, the safety timer switches off the pump and burner.

• To restart the device, set the device switch to the "0" position, then switch it on again. If the device is controlled by a remote control, it can be restarted using the corresponding switch on the remote control.

1. Check the high-pressure hose, the pipework, the fittings and the spray lance for damage before each use.

2. Replace leaking components immediately and seal leaking joints.

3. Check the hose coupling for tight fit and leaks.

4. Check the filling level of the detergent container and top up with detergent if necessary.

5. Check the filling level of the system care and top up if necessary.

We recommend the following nozzles, depending on the device and the cleaning task:

1. Secure the high-pressure gun by pushing the safety latch forwards.

2. Change the nozzle.

For removing light contamination and for rinsing,e.g. garden machines, terrace, tools.

1. Set the power switch to "I".

1. Set the power switch to the desired temperature.

The device works in the most economical temperature range (max. 60 °C).

1. Hang the detergent suction hose in a container with detergent.

2. Set the detergent dosing valve to the desired dosage. The dosage is set in stages from 0 (no detergent) to 6 (highest dosage).

1. Spray the detergent sparingly on the dry surface and let it work for a while (do not let it dry).

2. Rinse off the loosened dirt with the high-pressure jet.

1. Immerse the filter in clear water.

2. Turn the dosing valve to the highest detergent concentration.

3. Start the device and rinse clear for one minute.

As an alternative to dosing detergent at the device, detergent can also be added directly at the dispensing points.

Various options are available for this, e.g.a cup foam lance.

---

1. Container
2. Foam nozzle
3. High-pressure gun
4. Suction hose
5. GateDetergent admixture: 3=high, 2=medium, 1=low

1. Unscrew the container.

2. Plug the desired gate into the suction hose.

3. Fill the detergent into the container.

4. Screw the container onto the foam nozzle.

5. Disconnect the spray lance from the high-pressure gun.

6. Connect the cup foam lance to the high-pressure gun and hand-tighten.

7. Start up the high-pressure cleaner.

The cup foam lance must be flushed after use to prevent the formation of detergent deposits.

1. Unscrew the container.

2. Pour the remaining detergent back into the original packaging.

3. Fill the container with clear water.

4. Screw the container onto the cup foam lance nozzle.

5. Operate the cup foam lance for approx. 1 minute to flush the detergent residue.

6. Empty the container.

1. Actuate the safety lever and trigger.

   The high-pressure gun opens.

2. Release the safety lever and trigger.

   The high-pressure gun closes.

1. Set the power switch to max. 98 °C.

2. Adjust the working pressure and flow rate by turning (variable) the pressure/quantity regulator on the high-pressure gun (+/-).

1. Close the water inlet.

2. Open the high-pressure gun.

3. Switch on the pump with the power switch and let it run for 5-10 seconds.

4. Close the high-pressure gun.

5. Set the trigger to "0/OFF".

6. Close the stopcock on the water inlet and, if necessary, also close other stopcocks at the tapping points

7. Remove the water connection.

8. Actuate the high-pressure guns at the tapping points until the system is depressurised.

9. Lock the high-pressure guns by pushing the safety latch forwards.

1. Turn the main switch to position “0”.

2. Close the water inlet.

3. Actuate the high-pressure gun until the device is completely depressurised.

1. When transporting in vehicles, secure the device against slipping and tipping over according to the applicable guidelines.

We recommend that you choose a service contract to ensure reliable operation of the device. Please contact your KÄRCHER customer service department responsible.

1. Check the high-pressure gun.

2. Check the mains cable.

3. Check the filling level of the detergent containers.

4. Check the filling level of the system care.

5. Check the high-pressure hoses.

1. Check the system for leaks.

2. Check the appearance and level of the pump oil.

3. Check the vibration dampener.

1. Check the pump for leaks.

2. Check the system for internal deposits. To do this, start up the system with a spray lance without a high-pressure nozzle. If the operating pressure on the device pressure gauge (optional) rises above 3 MPa, the system must be descaled.

3. Clean the fresh water filter.

4. Clean the fuel filter.

1. Change the oil in the high-pressure pump.

2. Have the entire system checked and cleaned by customer service.

1. Replace the fuel filter (earlier if necessary).

2. Perform the safety test.

• Perform the pressure test according to the manufacturer's specifications.

See the "Technical data" section for the oil volume and type.

1. Provide a catch pan for approx. 1 litre of oil.

2. Loosen the oil drain plug.

3. Drain the oil into the catch pan.

   Note

   Dispose of the old oil in an environmentally friendly manner or hand it over to an authorised collection point.

4. Tighten the oil drain plug again.

5. Slowly fill with new oil up to the centre of the sight glass or between the "Min" and "Max" markings on the dipstick.

1. Switch the device on "I/ON".

2. Unlock the lever of the high-pressure gun.

3. Press the lever of the high-pressure gun.

   The device switches on.

4. Allow the device for run a maximum of 2 minutes until the water escaping from the high-pressure gun is free of air bubbles.

5. Release the lever of the high-pressure gun.

6. Lock the lever of the high-pressure gun.

1. Close the water inlet.

2. Release the screws of the cover and remove the cover.

3. Unscrew the filter casing in front of the pump and remove the water filter.

4. Clean the filter and replace if necessary

5. Mount the device in reverse order.

Deposits accumulating in the pipework increase the flow resistance and the motor load becomes too high.

Execution:

According to legal regulations, only approved boiler solvents with a test certificate may be used for removing deposits.

• RM 101; Dissolves descaling and detergent residues.

1. Fill a 20 litre container with 15 litres of water.

2. Add 1 litre of scale solvent.

3. Connect the water hose directly to the pump head and hang the free end into the container.

4. Place the connected spray lance in the container without a nozzle.

5. Start the motor according to the operating instructions of the motor manufacturer.

6. Open the high-pressure gun and do not close it again during descaling.

7. Set the temperature controller to a work temperature of 40 °C.

8. Let the device run until the work temperature is reached.

9. Switch the device off and allow it to stand for 20 minutes. The high-pressure gun must remain open.

10. Then pump the device empty.

The device should be installed in a frost-protected room. If there is a risk of frost,e.g. when installed in an outside area, the device must be drained and flushed with antifreeze.

1. Unscrew the water supply hose and the high-pressure hose.

2. Allow the device for run for a maximum of 1 minute until the pump and lines are empty.

3. Unscrew the supply line at the boiler base and allow the heating coil to drain.

4. Pour a commercially available antifreeze into the float tank. Observe the handling instructions of the anti-freeze manufacturer when doing this.

5. Place a catch pan under the high-pressure outlet.

6. Switch on the device (without burner) until the device is completely flushed.

Operator: Work labelled with "Operator" may only be performed by instructed persons capable of operating and maintaining high-pressure systems.

Qualified electrician: Work labelled with "Electrician" may only be performed by qualified electricians.

Customer Service: Work labelled with "Customer service" may only be performed by KÄRCHER customer service technicians or KÄRCHER-authorised technicians.

• Device is not running 

• Burner does not ignite or flame goes out during operation 

• Service indicator light flashes 1x 

• Service indicator light flashes 2x 

• Service indicator light flashes 3x 

• Service indicator light flashes 4x 

• Service indicator light flashes 5x 

• The service indicator light flashes 6x 

• Service indicator light flashes 7x 

• Service indicator light flashes 8x 

• Service indicator light lights up 

• Insufficient or no detergent delivery 

• System care LED lights up 

• Pump not reaching the required pressure 

• High-pressure pump knocking, pressure gauge fluctuates greatly 

• The device keeps turning on and off when the high-pressure gun is open. 

• The device does not switch off when the high-pressure gun is closed 

Cause:

There is no voltage in the machine.

Remedy:

Operator, qualified electrician

1. Check the plug and socket.

2. Check if the voltage specified on the type plate matches the voltage of the power source.

3. Check the mains connection for damage.

Cause:

Safety timer active.

Remedy:

Operator

1. Briefly switch off the device at the trigger an then on again.

Cause:

Fuse blown in the control circuit.

Remedy:

Customer Service department

1. Insert new fuse. Eliminate the reason for the overload if it burns out again.

Cause:

HP pressure switch (high pressure) faulty.

Remedy:

Customer Service department

1. Check the pressure switch.

Cause:

Temperature controller set too low.

Remedy:

Operator

1. Set the temperature regulator higher.

Cause:

Power switch is not set to warm water.

Remedy:

Operator

1. Set the device to a higher temperature.

Cause:

Low water cut-out in the safety block has switched off (Service indicator light flashes 5x).

Remedy:

Operator

1. Ensure sufficient water supply.

2. Check the device for leaks.

Cause:

No fuel.

Remedy:

Operator

1. Check the fuel supply.

Cause:

Exhaust gas thermostat has triggered (Service indicator light flashes 4x)

Remedy:

Operator

1. Set the power switch to "0".

2. Allow the device to cool down.

3. Switch the device on.

Cause:

Malfunction occurs repeatedly.

Remedy:

Operator

1. Contact Customer Service.

Cause:

Leak in the high-pressure system.

Remedy:

Operator

1. Check the high-pressure system and the connections for leaks.

Cause:

Fault in the voltage supply or current consumption of the motor too high.

Remedy:

Operator

1. Check the power supply and the mains power supply circuit breaker.

2. Contact Customer Service.

Cause:

Motor overloaded or overheated.

Remedy:

Operator

1. Set the power switch to "0".

2. Allow the device to cool down.

3. Switch the device on.

Cause:

Malfunction occurs repeatedly.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Exhaust gas thermostat has triggered.

Remedy:

Operator

1. Set the power switch to "0".

2. Allow the device to cool down.

3. Switch the device on.

Cause:

Malfunction occurs repeatedly.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Water shortage.

Remedy:

Operator

1. Check the water connection and the supply lines.

Cause:

Reed switch stuck in the water shortage safeguard or magnetic piston stuck.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Flame sensor has switched off the burner.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Water outlet temperature sensor fault.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Communication fault.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Maintenance required.

Remedy:

Customer Service department

1. Contact Customer Service.

Cause:

Dosage set too low.

Remedy:

Operator

1. Increase the dosage.

Cause:

Detergent filter clogged or tank empty (detergent LED lights up or flashes).

Remedy:

Operator

1. Clean the filter.

2. Fill with detergent.

Cause:

Detergent suction hoses, dosing valve or solenoid valve leaking or blocked.

Remedy:

Operator, customer service

1. Check the detergent supply.

2. Replace the defective or leaking parts.

Cause:

Malfunction occurs repeatedly.

Remedy:

Operator

1. Contact Customer Service.

Cause:

System care used up.

Remedy:

Operator

1. Refill the system care.

Cause:

Flushed the nozzle.

Remedy:

Operator

1. Replace the nozzle.

Cause:

Detergent tank is empty.

Remedy:

Operator

1. Top up detergent or close the dosing valve.

Cause:

Not enough water.

Remedy:

Operator

1. Ensure for sufficient water supply.

Cause:

Fresh water filter contaminated.

Remedy:

Operator

1. Clean the fresh water filter.

Cause:

Detergent dosing valve is leaking.

Remedy:

Operator

1. Check and seal the valve.

Cause:

Detergent hoses are leaking.

Remedy:

Operator

1. Replace the detergent hoses.

Cause:

Float valve is jammed.

Remedy:

Operator

1. Check the valve for free movement.

Cause:

Safety valve is leaky.

Remedy:

Customer Service department

1. Check the setting.

2. Install new seal, if required.

Cause:

Flow control valve is leaking or set too low.

Remedy:

Customer Service department

1. Check the valve parts.

2. Replace the parts if damaged, clean if dirty.

Cause:

Solenoid valve for pressure relief is defective.

Remedy:

Customer Service department

1. Replace the solenoid valve.

Cause:

Vibration dampener is defective.

Remedy:

Customer Service department

1. Replace the vibration dampener.

Cause:

High-pressure pump draws in a small amount of air.

Remedy:

Customer Service department

1. Check the suction system and eliminate any leaks.

Cause:

Detergent container empty and detergent dosing activated.

Remedy:

Operator

1. Top up detergent or set detergent dosage to 0.

Cause:

Not enough water, water inlet/fresh water filter blocked.

Remedy:

Operator

1. Check the water inlet.

2. Clean the fresh water filter.

Cause:

Nozzle in the spray lance is clogged.

Remedy:

Operator

1. Check the nozzle and clean it.

Cause:

Device is scaled.

Remedy:

Operator/customer service

1. Descale the device (see Descale the device)

Cause:

The switching point of the overflow valve has become misaligned.

Remedy:

Customer Service department

1. Reset the overflow valve.

Cause:

Air in the pump.

Remedy:

Operator

1. Vent the device.

Cause:

Safety valve or safety valve seal is defective.

Remedy:

Customer Service

1. Replace the safety valve or the seal.

Cause:

Pressure switch faulty.

Remedy:

Customer Service

1. Contact Customer Service.

• Device is not running 

• Burner does not ignite or flame goes out during operation 

• Service indicator light flashes 1x 

• Service indicator light flashes 2x 

• Service indicator light flashes 3x 

• Service indicator light flashes 4x 

• Service indicator light flashes 5x 

• The service indicator light flashes 6x 

• Service indicator light flashes 7x 

• Service indicator light flashes 8x 

• Service indicator light lights up 

• Insufficient or no detergent delivery 

• System care LED lights up 

• Pump not reaching the required pressure 

• High-pressure pump knocking, pressure gauge fluctuates greatly 

• The device keeps turning on and off when the high-pressure gun is open. 

• The device does not switch off when the high-pressure gun is closed 

Cause:

There is no voltage in the machine.

Remedy:

Operator, qualified electrician

1. Check the plug and socket.

2. Check if the voltage specified on the type plate matches the voltage of the power source.

3. Check the mains connection for damage.

Cause:

Safety timer active.

Remedy:

Operator

1. Briefly switch off the device at the trigger an then on again.

Cause:

Fuse blown in the control circuit.

Remedy:

Customer Service department

1. Insert new fuse. Eliminate the reason for the overload if it burns out again.

Cause:

HP pressure switch (high pressure) faulty.

Remedy:

Customer Service department

1. Check the pressure switch.

Cause:

Temperature controller set too low.

Remedy:

Operator

1. Set the temperature regulator higher.

Cause:

Power switch is not set to warm water.

Remedy:

Operator

1. Set the device to a higher temperature.

Cause:

Low water cut-out in the safety block has switched off (Service indicator light flashes 5x).

Remedy:

Operator

1. Ensure sufficient water supply.

2. Check the device for leaks.

Cause:

No fuel.

Remedy:

Operator

1. Check the fuel supply.

Cause:

Exhaust gas thermostat has triggered (Service indicator light flashes 4x)

Remedy:

Operator

1. Set the power switch to "0".

2. Allow the device to cool down.

3. Switch the device on.

Cause:

Malfunction occurs repeatedly.

Remedy:

Operator

1. Contact Customer Service.

Cause:

Leak in the high-pressure system.

Remedy:

Operator

1. Check the high-pressure system and the connections for leaks.

Cause:

Fault in the voltage supply or current consumption of the motor too high.

Remedy:

Operator

1. Check the power supply and the mains power supply circuit breaker.

2. Contact Customer Service.

Cause:

Motor overloaded or overheated.

Remedy:

Operator

1. Set the power switch to "0".

2. Allow the device to cool down.

3. Switch the device on.

Cause:

Malfunction occurs repeatedly.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Exhaust gas thermostat has triggered.

Remedy:

Operator

1. Set the power switch to "0".

2. Allow the device to cool down.

3. Switch the device on.

Cause:

Malfunction occurs repeatedly.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Water shortage.

Remedy:

Operator

1. Check the water connection and the supply lines.

Cause:

Reed switch stuck in the water shortage safeguard or magnetic piston stuck.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Flame sensor has switched off the burner.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Water outlet temperature sensor fault.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Communication fault.

Remedy:

Customer Service

1. Contact Customer Service.

Cause:

Maintenance required.

Remedy:

Customer Service department

1. Contact Customer Service.

Cause:

Dosage set too low.

Remedy:

Operator

1. Increase the dosage.

Cause:

Detergent filter clogged or tank empty (detergent LED lights up or flashes).

Remedy:

Operator

1. Clean the filter.

2. Fill with detergent.

Cause:

Detergent suction hoses, dosing valve or solenoid valve leaking or blocked.

Remedy:

Operator, customer service

1. Check the detergent supply.

2. Replace the defective or leaking parts.

Cause:

Malfunction occurs repeatedly.

Remedy:

Operator

1. Contact Customer Service.

Cause:

System care used up.

Remedy:

Operator

1. Refill the system care.

Cause:

Flushed the nozzle.

Remedy:

Operator

1. Replace the nozzle.

Cause:

Detergent tank is empty.

Remedy:

Operator

1. Top up detergent or close the dosing valve.

Cause:

Not enough water.

Remedy:

Operator

1. Ensure for sufficient water supply.

Cause:

Fresh water filter contaminated.

Remedy:

Operator

1. Clean the fresh water filter.

Cause:

Detergent dosing valve is leaking.

Remedy:

Operator

1. Check and seal the valve.

Cause:

Detergent hoses are leaking.

Remedy:

Operator

1. Replace the detergent hoses.

Cause:

Float valve is jammed.

Remedy:

Operator

1. Check the valve for free movement.

Cause:

Safety valve is leaky.

Remedy:

Customer Service department

1. Check the setting.

2. Install new seal, if required.

Cause:

Flow control valve is leaking or set too low.

Remedy:

Customer Service department

1. Check the valve parts.

2. Replace the parts if damaged, clean if dirty.

Cause:

Solenoid valve for pressure relief is defective.

Remedy:

Customer Service department

1. Replace the solenoid valve.

Cause:

Vibration dampener is defective.

Remedy:

Customer Service department

1. Replace the vibration dampener.

Cause:

High-pressure pump draws in a small amount of air.

Remedy:

Customer Service department

1. Check the suction system and eliminate any leaks.

Cause:

Detergent container empty and detergent dosing activated.

Remedy:

Operator

1. Top up detergent or set detergent dosage to 0.

Cause:

Not enough water, water inlet/fresh water filter blocked.

Remedy:

Operator

1. Check the water inlet.

2. Clean the fresh water filter.

Cause:

Nozzle in the spray lance is clogged.

Remedy:

Operator

1. Check the nozzle and clean it.

Cause:

Device is scaled.

Remedy:

Operator/customer service

1. Descale the device (see Descale the device)

Cause:

The switching point of the overflow valve has become misaligned.

Remedy:

Customer Service department

1. Reset the overflow valve.

Cause:

Air in the pump.

Remedy:

Operator

1. Vent the device.

Cause:

Safety valve or safety valve seal is defective.

Remedy:

Customer Service

1. Replace the safety valve or the seal.

Cause:

Pressure switch faulty.

Remedy:

Customer Service

1. Contact Customer Service.

The warranty conditions issued by our relevant sales company apply in all countries. We shall remedy possible malfunctions on your appliance within the warranty period free of cost, provided that a material or manufacturing flaw is the cause. In a warranty case, please contact your dealer (with the purchase receipt) or the next authorised customer service site.

Further information can be found at: www.kaercher.com/dealersearch

Further warranty information (if available) can be found in the service area of your local Kärcher website under "Downloads".

We hereby declare that the product named below complies with the relevant provisions of the directives and regulations listed. This declaration is invalidated by any changes made to the product that are not approved by us.

Product: High-pressure cleaner ST

Type: 1.698-xxx

Type: 1.699-xxx

2006/42/EC (+2009/127/EC)

2014/30/EU

2014/68/EU

2011/65/EU

2009/125/EC

(EU) 2019/1781

EN 60335-1

EN 60335-2-79

EN 55014-1: 2017 + A11: 2020

EN 55014-2: 1997 + A1: 2001 + A2: 2008

EN 61000-3-2: 2014

EN IEC 63000: 2018

HDS 8/18-4 ST; HDS 10/21-4 ST

EN 61000-3-3: 2013

HDS 13/20-4 ST

EN 61000-3-11: 2000

Documentation supervisor:

S. Reiser

Alfred Kärcher SE & Co. KG

Alfred-Kärcher-Str. 28 - 40

71364 Winnenden (Germany)

Tel.: +49 7195 14-0

Fax: +49 7195 14-2212

---

Winnenden, 2024/09/01

The undersigned act on behalf of and with the authority of the Board of Directors.

Alfred Kärcher SE & Co. KG

Alfred-Kärcher-Str. 28 - 40

71364 Winnenden (Germany)

Ph.: +49 7195 14-0

Fax: +49 7195 14-2212

We hereby declare that the product named below complies with the relevant provisions of the directives and regulations listed. This declaration is invalidated by any changes made to the product that are not approved by us.

Product: High-pressure cleaner ST

Type: 1.698-xxx

Type: 1.699-xxx

S.I. 2008/1597 (as amended)

S.I. 2016/1091 (as amended)

S.I. 2016/1105 (as amended)

S.I. 2012/3032 (as amended)

S.I. 2010/2617 (as amended)

(EU) 2019/1781

EN 60335-1

EN 60335-2-79

EN 55014-1: 2017 + A11: 2020

EN 55014-2: 1997 + A1: 2001 + A2: 2008

EN 61000-3-2: 2014

EN IEC 63000: 2018

HDS 8/18-4 ST; HDS 10/21-4 ST

EN 61000-3-3: 2013

HDS 13/20-4 ST

EN 61000-3-11: 2000

Documentation supervisor:

S. Reiser

Alfred Kärcher SE & Co. KG

Alfred-Kärcher-Str. 28 - 40

71364 Winnenden (Germany)

Tel.: +49 7195 14-0

Fax: +49 7195 14-2212

---

Winnenden, 2024/09/01

The undersigned act on behalf of and with the authority of the Board of Directors.

Alfred Kärcher SE & Co. KG

Alfred-Kärcher-Str. 28 - 40

71364 Winnenden (Germany)

Ph.: +49 7195 14-0

Fax: +49 7195 14-2212

• HDS 8/18-4 St 

• HDS 10/21-4 St 

• HDS 13/20-4 St