KARCHER 2339468 K 7 Smart Control Pressure washer 180 Bar Cold Water Instruction Manual

: June 6, 2024
: Karcher

KARCHER 2339468 K 7 Smart Control Pressure washer 180 Bar Cold Water Instruction Manual

General notes

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 own.

KÄRCHER Home & Garden app

The device can be controlled by direct operation on the high-pressure gun or via a mobile device equipped with Bluetooth® wireless technology. The KÄRCHER Home & Garden app is required for this.

The app also contains:

Installation and initial startup information
Information about the areas of application
Tips & Tricks
FAQ with detailed troubleshooting
Connection to the KÄRCHER Service Centre

The app can be downloaded here:

Trademarks

Bluetooth®wordmarks and logos are registered trademarks of Bluetooth SIG, Inc. Any use of these trademarks by Alfred Kärcher SE & Co. KG is under license.
Google Play™ and Android™ are trademarks or registered trademarks of Google Inc.
Apple® and App store® are trademarks or registered trademarks of Apple Inc.

Environmental protection

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

Electrical and electronic appliances 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 appliance. Appliances marked by this symbol are not allowed to be disposed of together with the household rubbish.

Cleaning work producing in oily waste water, e.g. washing engines, washing undercarriages etc., may only be performed at washing stations with an oil separator.
Working with detergents may only be performed on watertight surfaces with connection to the waste water sewage system. Do not allow detergent to enter waterways or the soil.
Extraction of water from public waterways is not permitted in some countries.

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

Intended use

Use the high-pressure cleaner in private households only.

The high-pressure cleaner is intended for cleaning machines, vehicles, buildings, tools, façades, terraces, garden machines etc. using a high- pressure water jet.

Accessories and spare parts

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.

Scope of delivery

The scope of delivery for the appliance is shown on the packaging. Check the contents for completeness when unpacking. If any accessories are missing or in the event of any shipping damage, please notify your dealer.

Description of the device

The maximum amount of equipment is described in these operating instructions. Depending on the model used, there are differences in the scope of delivery (see packaging).

For the illustrations, refer to the graphics page

Illustration A

Product Overview

Illustration B

Product Overview

Stand with carrying handle
Water connection with integrated sieve
Transport wheel
Hose guide
Trigger “0/OFF” / “I/ON”
Storage for spray lance
High-pressure hose
Plug ‘n’ Clean detergent bottle
Storage / parking position for high-pressure gun 10 3-in-1 multi-jet spray lance with 3 spray types (see also chapter Smart Control System)
Smart Control high-pressure gun
LCD display (see also chapter LCD display)
Battery compartment lock
Battery compartment
“+/-” buttons for pressure control
High-pressure gun lock
Button for separating the high-pressure hose from the high-pressure gun
High-pressure gun lever
Transport handle, telescoping
Carrying handle
Hose holder
High pressure hose reel
Crank handle for hose reel
Type plate
Accessory compartment
Hook for net attachment
Accessory compartment net
Mains connection with mains plug
Water connection coupling
Garden hose (fabric reinforced, diameter at least 1/2 inch (13 mm), length at least 7.5 m, with commercially available quick coupling).
KÄRCHER suction hose for water supply from open containers (order no. 2.643-100.0).

* optional, additionally required**

LCD display

LCD display
Illustration C

Area of application (1-SOFT / 2-MEDIUM / 3-HARD with 2 pressure levels each)
BOOST function indicator
Spray type recommendation (flat stream/detergent/ dirt grinder)
Display Bluetooth®connection
Signal strength status (four levels)
Battery status (empty, almost empty, medium, full)
Detergent level (1 / 2 / 3)

Safety devices

CAUTION

Missing or modified safety devices
Safety devices are provided for your own protection. Never modify or bypass safety devices.

Power switch

The power switch prevents unintentional operation of the device.

High-pressure gun lock

The lock locks the lever of the high-pressure gun and prevents the device from starting unintentionally.

Auto-stop function

If the lever of the high-pressure gun is released, the pressure switch turns off the pump and the high-pressure jet stops. The pump switches on again when the lever is pressed.

Motor circuit breaker

The motor circuit breaker shuts off the device if power consumption it too high.

Symbols on the device

Do not aim the high-pressure jet may at persons, animals, live electrical equipment or the device itself.

Protect the device against frost.

The device may not be connected to the public drinking water network.

Assembly

For the illustrations, refer to the graphics page. Fit the supplied loose parts onto the device before starting up the device.

Mounting the accessory net

Hang the accessory net on the hooks.
Illustration D

Push the high-pressure hose through the hose guide

Insert the high-pressure hose through the hose guide from the rear.
Illustration E

Installing the water connection coupling

Screw the water connection coupling onto the water connection on the device.
**Illustration F

**

Initial Start-Up

Note

If you do not want to control the device by mobile device via a Bluetooth®connection, you only have to follow the steps in the section “Connecting the high-pressure gun”.

Download the app and register your device

Download the KÄRCHER Home & Garden app (see chapter KÄRCHER Home & Garden app).
Start the KÄRCHER Home & Garden app.
Log in to the KÄRCHER Home & Garden app. If necessary, create an account for this.
Scan the enclosed QR code.
The high-pressure cleaner is registered.
Note
If you do not have the enclosed QR code at hand, you can also register the device with the part number and serial number. Both numbers are given on the type plate.
Follow the instructions of the KÄRCHER Home & Garden app.
Note
Be sure to do this before connecting the high-pressure gun Bluetooth® Activate on your mobile device.
Connecting the high-pressure gun
Note
You can find a detailed description of the connection at https://www.kaercher.com/FCR.
Plug the mains plug for the high-pressure cleaner into a socket.
The device switches to coupling mode for 60 s. During this time it is possible to couple the high-pressure gun.
Press the “+” key and the “-” key on the high-pressure gun simultaneously for at least 3 s.
If the coupling is successful, the pressure levels, as well as the radio and the Bluetooth®symbol, will be shown on the display.
Illustration G

The Bluetooth®connection between the mobile device and the high pressure cleaner is established automatically.
Note
If necessary, you can also establish the Bluetooth®connection at a later time by pressing the “-” key for 10 s.
If the coupling attempt failed:
- Pull the mains plug for the high-pressure cleaner out of the socket.
- Wait 20 s.
- Couple the high-pressure gun again.

Initial startup

Note

Take care not to exceed the maximum permissible mains impedance at the connection point (see chapter Technical data).

Contact your electricity supplier in the case of any uncertainties regarding the mains grid impedance at your electrical connection point.

Place the device on a flat and level surface.
For devices with a hose reel: Completely unwind the high-pressure hose from the hose reel.
For devices without a hose reel: Unwind the high pressure hose completely and eliminate any loops and twists.
Pull the high-pressure hose all the way forwards through the hose guide.
Insert the high-pressure hose into the high-pressure gun until it audibly latches into place.
Note
Take care to ensure the correct alignment of the nipple.
Illustration H
Check for a secure connection by pulling on the high-pressure hose.
Plug the mains plug into a mains socket.

Water supply

For the connection values, see the type plate or chapter Technical data.

Observe the water distribution company regulations.

ATTENTION

Damage through contaminated water

Contamination in the water can damage the pump and the accessories.
KÄRCHER recommends using the KÄRCHER water filter for protection (special accessory, order number 4.730-059)

Connection to the water line

ATTENTION

Hose coupling with Aquastop on the water connection of the device

Damage to the pump

Never use a hose coupling with Aquastop on the water connection of the device.

You can use an Aquastop coupling on the tap.

Plug the garden hose onto the water connection coupling.
Connect the garden hose to the water line.
Open the water tap fully.
Illustration I

Sucking water from open containers

When used with the KÄRCHER suction hose with check valve (special accessory, order number 2.643-100) this high-pressure cleaner is suitable for sucking up surface water, e.g. from rain barrels or ponds (for the maximum suction height see chapter Technical data).
The water connection coupling is not required for vacuuming operation.

Fill the suction hose with water.
Screw the suction hose onto the device water connection and hang it in a water source (e.g. water butt).

Vent the device

Switch the device on “I/ON”.
Unlock the lever of the high-pressure gun.
Press the lever of the high-pressure gun.
The device switches on.
Allow the device for run a maximum of 2 minutes until the water escaping from the high-pressure gun is free of air bubbles.
Release the lever of the high-pressure gun.
Lock the lever of the high-pressure gun.

Operation

ATTENTION

Pump running dry

Damage to the device
If pressure does not build up in the device after 2 minutes then switch the device off and proceed according to the instructions in chapter Troubleshooting guide.

Smart Control System

The “+/-” buttons on the high-pressure gun can be used to select the pressure and detergent dosing levels. The spray type can be changed by turning the 3-in-1 multi jet spray lance.

Note The sensitivity of materials can vary greatly depending on age and condition. The recommendations are therefore not binding.

Flat jet nozzle

Pressure level| Display| Recommended for e.g.
| | Stone terraces, asphalt, metal surfaces, garden utensils (wheelbarrow, spade, etc.)
| | Cars / motorcycles, brick surfaces, plastered walls, plastic furniture
| | Wooden surfaces, bicycle, sandstone surfaces, rattan furniture
Dirt grinder

Pressure level| Display| Recommended for e.g.
| | For particularly stubborn dirt on stone terraces, asphalt, metal surfaces, garden utensils (wheel- barrow, spade, etc.)
Detergent nozzle

Pressure level| Display| Recommended for e.g.
****| Display | Operation with deter- gent. Dosing the deter- gent concentration as needed

High-pressure operation

ATTENTION
Damage to painted or sensitive surfaces

Surfaces can be damaged when the jet is too close to the surface or an unsuitable spray lance is used. Maintain a minimum spray distance of 30 cm when cleaning painted surfaces.

Do not clean car tyres, paint or sensitive surfaces such as wood with the dirt grinder.

Insert the 3-in-1 Multi Jet spray lance and turn it 90° to fix it in place. Be aware of the orientation!
Illustration J

ATTENTION
**** Spray type change when the lever of the high-pressure gun is pressed
Damage to the spray lance
Let go of the lever of the high-pressure gun before changing the spray type.
Select the spray type. Do this by turning the 3-in-1 Multi Jet spray lance until the required spray display is visible above.
Illustration K
Switch the device on (“I/ON”).
Unlock the lever of the high-pressure gun.
Press the lever of the high-pressure gun.
The device switches on

Activating the BOOST function

For cleaning stubborn dirt, the BOOST function can be activated for 30 seconds regardless of the pressure level set. This increases the water pressure.

Hold down the “+” button on the high-pressure gun until BOOST is highlighted on the LCD display.
Illustration L

After the BOOST function has expired, the device works with the previously set pressure level.

Operation with detergent

DANGER
Failure to adhere to the safety data sheet

Incorrect handling of the detergent can seriously damage your health

Observe the safety data sheet of the detergent manufacturer, in particular the instructions on personal protective equipment.

Note

A Plug ‘n’ Clean detergent bottle is required for operating with detergent. KÄRCHER detergent can be purchased ready to use in a Plug ‘n’ Clean detergent bottle.

Remove the cover from the Plug ‘n’ Clean detergent bottle.
Plug the detergent bottle into the Plug ‘n’ Clean detergent connection with the opening facing down.
Illustration M
Turn the 3-in-1 Multi Jet spray lance to the “MIX” cleaning nozzle until the “MIX” LCD on the pressure indicator of the high-pressure gun lights up.
The detergent solution is mixed with the water jet during operation.
Using the “+/-” buttons of the high-pressure gun, set the desired detergent concentration.

Recommended cleaning method

Spray the detergent sparingly on the dry surface and let it work for a while (do not let it dry).
Rinse off the loosened dirt with the high-pressure jet

After operation with detergent

Pull the Plug ‘n’ Clean detergent bottle out of the mount and close it with the cap before transporting the device lying down.
Store the detergent bottle in the holder with the lid facing up.
Operate the device for about 30 seconds at detergent level 1 to rinse it clean.

Interrupting operation

Release the lever of the high-pressure gun.
The device switches off when the lever is released.
The high pressure in the system is retained.
Lock the lever of the high-pressure gun.
Illustration N
Place the high-pressure gun with the spray lance in the parking position.
Switch the device off “0/OFF” during work breaks longer than 5 minutes

Ending operation

CAUTION

Pressure in the system

Injuries from high-pressure water escaping uncontrollably
Only disconnect the high-pressure hose from the highpressure gun or the device when the system is fully depressurised

CAUTION

Hot water

Danger of burns
Hot water can leak out of the connections when disconnecting the garden hose or high-pressure hose after operation.

Release the lever of the high-pressure gun.
Close the water tap.
Press the lever of the high-pressure gun for 30 seconds.
The pressure remaining in the system is discharged.
Release the lever of the high-pressure gun.
Lock the lever of the high-pressure gun.
Disconnect the device from the water supply.
Switch off the device “0/OFF”.
Pull the mains plug out of the socket.

Transport

CAUTION
Failure to observe the weight

Risk of injury and damage
Be aware of the weight of the device during transportation.

Carrying the device

Lift and carry the device by the carrying handles.

Pulling the device

Pull the transport handle out until it audibly latches into place.
Pull the device via the transport handle

Transporting the device in a vehicle

Before transporting lying down, pull the Plug ‘n’ Clean detergent bottle out of the mount and close it with the cap.
Secure the device against slipping and tipping over.

Storage

CAUTION
Failure to observe the weight

Risk of injury and damage
Be aware of the weight of the device during storage

Storing the device

Place the device on a level surface.
Disconnect the spray lance from the high-pressure gun.
Press the separation button on the high-pressure gun and disconnect the high-pressure hose from the high-pressure gun.
ATTENTION
Damage to the high-pressure hose

Damage to the high-pressure hose through incorrect direction of rotation
Observe the correct direction of rotation of the hose reel when winding on the hose.

For devices with a hose reel: Use the crank handle to turn the hose reel anticlockwise and coil up the high-pressure hose.
For devices without a hose reel: Store the high-pressure hose on the device.
Store the mains connection cable and accessories on the device

Observe the additional instructions before storing the device for a longer period of time, see chapter Care and service.

Frost protection

ATTENTION
Danger of frost
Incompletely emptied devices can be destroyed by frost.
Completely empty the device and accessories.
Protect the device from frost

The following requirements must be satisfied:

The device is disconnected from the water supply.
The high-pressure gun is disconnected from the high-pressure hose.
1. Switch the device on “I/ON”.
2. Wait for a maximum of 1 minute until no more water escapes from the high-pressure hose.
3. Switch off the device.
4. Store the device in a frost-protected room, together with all accessories

Care and service

DANGER
Danger of electric shock
Injuries due to touching live parts
Switch off the device.
Remove the mains plug.
The device is maintenance-free, i.e. you do not need to perform any maintenance work.

Clean the sieve in the water connection

ATTENTION
Damaged sieve in the water connection

Damage to the device through contaminated water Check the sieve for damage before inserting it in the water connection.

If necessary, clean the sieve in the water connection.

Remove the water connection coupling.
Pull the sieve out using flat pliers.
Clean the sieve under running water.
Illustration O
Insert the sieve into the water connection

Replacing the batteries of the high-pressure gun

Two non-rechargeable or rechargeable AAA batteries are required.
The batteries are exhausted if nothing or a flashing battery symbol is visible in the display of the high-pressure gun.
Illustration P

Press the locking slide.
Illustration Q
Open the battery compartment.
Remove the battery.
Insert new batteries, while paying attention to the correct alignment of the poles.
Close the battery compartment.
Dispose of the used batteries in accordance with statutory provisions

Troubleshooting guide

Malfunctions often have simple causes that you can remedy yourself using the following overview. When in doubt, or in the case of malfunctions not mentioned here, please contact your authorised Customer Service.

DANGER

Danger of electric shock

Injuries due to touching live parts Switch off the device.
Remove the mains plug.

Device not running

Press the lever of the high-pressure gun.
The device switches on.
Check that the voltage specified on the type plate corresponds to the voltage of the power source.
Check the mains connection cable for damage.
If the motor is overloaded and the motor circuit breaker has triggered:
- Switch off the device “0/OFF”.
- Allow the device to cool down for 1 hour.
- Switch the device on “I/ON” and resume operation.

Have the device checked by Customer Service if this fault occurs repeatedly.

The device does not start up, the motor buzzes
Voltage drop due to a weak mains grid or when using an extension cable

When switching on, first press the lever on the high pressure gun and then switch on the device “I/ON”.

Device does not reach required pressure

The water supply is too low

Open the water tap fully.
Check the water inlet for an adequate flow rate

The sieve in the water connection is dirty.

Pull the sieve in the water connection out using flat pliers.
Clean the sieve under running water.

Air is in the device.

Vent the device:
- Switch on the device without a connected spray lance for a maximum of 2 minutes.
- Press the high-pressure gun and wait until the water escaping from the high-pressure gun is free of air bubbles.
- Connect the spray lance.
- Observe the maximum suction height during suction operation (see chapter Technical data)

Strong pressure fluctuations

Clean the high-pressure nozzle:
- Use a needle to remove dirt from the nozzle drill.
- Rinse the high-pressure nozzle from the front with water.
Check the water supply volume.

Device leaking

The device leaks a small amount for technical reasons. If the leak is severe, request authorised Customer Service.

Detergent is not sucked in

Turn the 3-in-1 Multi Jet spray lance to detergent nozzle “MIX”.
Check that the Plug ‘n’ Clean detergent bottle is sitting correctly with the opening facing down in the detergent connection.
No pressure indicator on the high-pressure gun
Illustration R

Re-establish the connection to the high-pressure cleaner, see chapter Initial Start-Up

BOOST function is not shown on the display and cannot be started via the KÄRCHER Home & Garden app

The device is overheated.

Check the water supply temperature (for maximum water inlet temperature, see chapter Technical data).
Reduce the water supply temperature to give the motor more cooling.

Error messages
Illustration S

Switch off the device “0/OFF”.
Pull the mains plug out of the socket.
After 20 seconds, insert the mains plug back into the socket.
Switch the device on “I/ON”. Have the device checked by Customer Service if this fault occurs repeatedly.

Emergency operation

If the pressure regulation on the high-pressure gun is defective, the high- pressure cleaner works at maximum level.

Deactivating emergency operation:
- Switch off the device “0/OFF”.
- Pull the mains plug out of the socket.
- After 20 seconds, insert the mains plug back into the socket.
- Switch the device on “I/ON”. Have the device checked by Customer Service if this fault occurs repeatedly.

The high-pressure gun is not working properly
Illustration T

An internal error has occurred in the electronics of the high-pressure gun.

Press the locking slide.
Illustration Q
Open the battery compartment.
Remove the battery.
Insert the batteries, paying attention to the correct alignment of the poles.
Close the battery compartment.
Have the high-pressure gun checked by Customer Service if this fault occurs repeatedly.

Warranty

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 defect is the cause. In a warranty case, please contact your dealer (with the purchase receipt) or the next authorised customer service site. (See overleaf for the address)

Technical data

| K 7| Premium
Smart
Control| Smart
Control
---|---|---|---
Electrical connection| | |
Voltage| V| 230| 230
Phase| | 1| 1
Frequency| Hz| 50| 50
Maximum permissible
mains grid impedance| 0| 0,394 + j0,246| 0,394 + j0,246
Power rating| kW| 3,0| 3,0
Degree of protection| | IPX5| IPX5
Protection class| | |
Power protection (slow- blowing)| A| 16| 16
Water connection| | |
Feed pressure (max.)| MPa| 1,2| 1,2
Input temperature (max.)| °C| 60| 60
Input amount (min.)| l/min| 12| 12
Suction height (max.)| m| 0,5| 0,5
Device performance data| | |
Operating pressure| MPa| 15| 15
Max. permissible pressure MPa| 18| 18
Water flow rate| l/min| 9,2| 9,2
Maximum flow rate| l/min| 10| 10
Detergent flow rate| l/min| 0,3| 0,3
High-pressure gun recoil force| N| 27| 27
Dimensions and weights

Typical operating weight| kg| 20,0| 19,6
Length| mm| 459| 459
Width| mm| 330| 330
Height| mm| 666| 666
Radio module SRD| | |
Frequency| MHz| 868,7-

869,2

| 868,7-

869,2

Transmitting power ERP| mW| 0,53| 0,53
Bluetooth radio module| | |
Frequency| GHz| 2,45| 2,45
Transmitting power ERP| mW| 6,3| 6,3
Determined values in acc. with EN 60335-2-79

Hand-arm vibration value             m/s2| 1,3| 1,3
Uncertainty K                          m/s2| 0,6| 0,6
Sound pressure level LpA        dB(A)| 79| 79
Uncertainty KpA                      dB(A)| 3| 3
Sound power level LwA + K dB(A) uncertainty wA| 95| 95

Subject to technical modifications.

EU Declaration of Conformity

We hereby declare that the machine described below complies with the relevant basic safety and health requirements in the EU Directives, both in its basic design and construction as well as in the version placed in circulation by us. This declaration is invalidated by any changes made to the machine that are not approved by us.

Product: High-pressure cleaner
Type: 1.317-xxx