KARCHER K 7 Premium Smart Control Pressure Washer Instruction Manual

: June 9, 2024
: Karcher

KARCHER K 7 Premium Smart Control Pressure Washer

KARCHER-K-7-Premium-Smart-Control-Pressure-WasherPRODUCT-
IMAGE

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.

Safety instructions

Read this safety chapter and these original instructions before using the device for the first time. Act in accordance with them. Keep the original instructions for future reference or for future owners.

In addition to the notes in the operating instructions, you also need to take into consideration the general safety regulations and accident prevention guide-lines applicable by law.

Warnings and information notices attached to the device provide important information for hazard-free operation.

Hazard levels

DANGER

Indication of an imminent threat of danger that will lead to severe injuries or even death.

WARNING

Indication of a potentially dangerous situation that may lead to severe injuries or even death.

CAUTION

**** Indication of a potentially dangerous situation that may lead to minor injuries.

ATTENTION

**** Indication of a potentially dangerous situation that may lead to damage to property.

Protective gear

CAUTION

Wear suitable protective clothing and safety goggles to protect yourself from water or dirt backsplash.
Aerosols can be formed when using high-pressure cleaners. Inhaling aerosols can be harmful for your health. Depending on the application, the use of fully shielded nozzles (e.g. surface cleaners) can significantly lower the emission of aqueous aerosols. De-pending on the environment to be cleaned, wear a suitable respiratory protective mask of class FFP 2 or comparable to protect yourself from inhaling aerosols if the use of a fully shielded nozzle is not possible.

General safety instructions

DANGER

Risk of asphyxiation. Keep pack-aging film out of the reach of children.

WARNING

Only use the device for its proper use. Take into account the local conditions and beware of third parties, in particular children, when working with the device.
Persons with reduced physical, sensory or mental capabilities and persons lacking experience and knowledge may only use the appliance if they are properly supervised, have been instructed on use of the appliance safely by a person responsible for their safety, and understand the resultant hazards involved.
Children must not operate the device.
Children must be super-vised to prevent them from playing with the appliance.

CAUTION

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

Risk of electric shock

DANGER

Only connect protection class I de-vices to properly earthed power sources.
Only connect the device to alternating current. The voltage indicated on the type plate must match the voltage of the power source.
Only operate the device via a fault current protection switch (maximum 30 mA).
Never touch the mains plug and socket with wet hands
The mains plug and coupling of the extension cable must be water tight and may not be placed in water. The coupling may not be on the floor. Use cable drums to ensure that the sockets are at least 60 mm above the floor.
All live parts in the work area must be protected against water jets.

WARNING

Only connect the device to an electrical connection which has been set up by a qualified electrician as per IEC 60364-1.
Check that the mains connection cable with mains plug is undamaged each time before using the device. To avoid any possible danger, a damaged mains connection cable must be immediately replaced by the manufacturer, or the authorized customer service department or a qualified electrician.
Do not damage the power supply and ex-tension cable by running over it, crushing or yanking it or similar. Protect the power supply cable from heat, oil and sharp edges.
Unsuitable electrical extension cables are dangerous. Only use approved and appropriately marked electrical extension cables with a sufficient line cross section when outdoors: 1-10 m : 1.5 mm2, 10-30 m : 2.5 mm2

CAUTION

Always fully unwind the extension cable from the cable drum.
In case of longer breaks in operation and after use, switch off the device at the main switch / device switch and pull the mains plug.

Operation

DANGER

Operation in explosive atmospheres is prohibited.
Never suction solvents, liquids containing solvents or undiluted acids. This includes e.g. petrol, paint thinner or heating oil. The spray mist is highly flammable, explosive and poisonous.
Damaged wheels / tyre valves are extremely dangerous. Damaged wheels / tyre valves can be damaged by the high-pressure jet and explode. The first sign of this is discolorations of the tyres. Keep a spray distance of at least 30 cm when cleaning the wheels / tyre valves.

WARNING

Do not use the device if people without the proper protective clothing are in its reach.
Do not aim the high-pressure jet at yourself, e.g. to clean clothes or shoes.
Do not direct the high-pressure jet at persons, animals, live electrical equipment or at the device itself.
Do not spray any objects which contain harmful substances (e.g. asbestos).
Check the device and the accessories, such as the high-pressure hose, high-pressure gun and safety devices, to make sure they are in proper safe and reliable condition before each operation. Do not use the device if it is dam-aged. Replace damaged components immediately.
Only use high-pressure hoses, control panels and couplings specified by the manufacturer.
Risk of scalding. When disconnecting the supply or high-pressure hose, hot water can leak out of the connections after operation.

CAUTION

According to the applicable regulations, the appliance may never be used with the drinking water network without a system separator. Ensure that the connection to your house water system, with which the high-pressure cleaner is operated, is equipped with a system separator according to EN 12729 type BA.
Water that has flowed through a system separator is no longer classified as drinkable. Never leave the device unsupervised while it is in operation.
Recoil force from the water stream emerging at the high-pressure nozzle acts on the high-pressure gun. Keep proper footing and hold the high-pressure gun and spray lance firmly.
Accidents or damage due to the device falling over. Before all actions with or on the device, you must make sure that it is stable.

ATTENTION

Do not operate the device at temperatures below 0 °C.

Operation with detergent

WARNING

Incorrect use of detergents can cause serious injuries or poisoning.

CAUTION

Keep the detergent out of the reach of children.
Only use the detergents supplied or specified by the manufacturer. The use of other deter-gents or chemicals can impair the safety of the device.

Care and service

WARNING

Always pull out the mains plug before all care and maintenance work.

ATTENTION

Do not use acetone, undiluted ac-ids or solvents, as they corrode the materials used on

Transportation

CAUTION
Risk of accidents and injuries. Take into account the weight of the device for transportation and storage. See chapter Technical data in the operating instructions.

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 ma-chines, 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

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
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 with commonly available coupling
- Fabric reinforced
- Diameter of at least 1/2 inch (13 mm)
- Length at least 7.5 m
**KÄRCHER suction hose for water supply from open containers (order no. 2.643-100.0)
*Foam nozzle with detergent container The detergent is sucked out of the container to pro-duce a strong detergent foam.
Washing brush (e.g. for washing cars) optional, ** additionally required

LCD display

Illustration B

Area of application (1-SOFT / 2-MEDIUM / 3-HARD with 2 pressure levels each)
BOOST function indicator3Spray type recommendation (flat stream/detergent/ dirt grinder)
Display Bluetooth® connection
Signal strength status (four levels)
Battery status (empty, almost empty, medium, full) 7 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-pres-sure 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 per-sons, 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 C

Push the high-pressure hose through the hose guide

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

Installing the water connection coupling

Screw the water connection coupling onto the water connection on the device.
Illustration E

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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 in-to 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 F
The Bluetooth connection between the mobile de-vice 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

Place the device on a flat and level surface.
Completely unwind the high-pressure hose from the hose reel.
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 G
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 fil-ter 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 H

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.

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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 there-fore not binding.

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 orientations
Illustration I
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 J
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 lev-el set. This increases the water pressure.

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

After the BOOST function has expired, the device works with the previously set pressure level.
As soon as the display stops flashing, the BOOST function is available again.

Operation with a washing brush

Insert the washing brush into the high-pressure gun and turn by 90° to fasten it.

Operation with detergent

DANGER Failure to adhere to the safety data sheet Incorrect handling of the detergent can seriously dam-age 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 L
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.
You can optionally use the foam nozzle.
Fill the detergent solution into the detergent tank. Adhere to the dosage specifications on the deter-gent container.
- b Connect the foam nozzle to the detergent con-
- Insert the foam nozzle into the high-pressure gun and turn by 90° to fasten it.

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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 deter-gent 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 M
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.

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Ending operation

CAUTION
Pressure in the system
Injuries from high-pressure water escaping uncontrollably
Only disconnect the high-pressure hose from the high-pressure gun or the device when the system is fully de-pressurized.

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.
Use the crank handle to turn the hose reel anti clock-wise and coil up the high-pressure hose.
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.

Switch the device on “I/ON”.
Wait for a maximum of 1 minute until no more water escapes from the high-pressure hose.
Switch off the device.
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 N
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 O

Press the locking slide.
Illustration P
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.

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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 authorized 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. 1. 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:

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

Strong pressure fluctuations

Clean the high-pressure nozzle: a Use a needle to remove dirt from the nozzle drill. b 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 rea sons. If the leak is severe, request authorized 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 sit-ting correctly with the opening facing down in the detergent connection.

No pressure indicator on the high-pressure gun
Illustration Q

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 da-ta).
Reduce the water supply temperature to give the motor more cooling.

Error messages
Illustration R

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:
- a. Switch off the device “0/OFF”.
- b. Pull the mains plug out of the socket.
- c. After 20 seconds, insert the mains plug back into the socket.
- d. 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 S
An internal error has occurred in the electronics of the high-pressure gun.

Press the locking slide.
Illustration P
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.

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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 authorized customer service site.
(See overleaf for the address)