KARCHER SV 7 Steam Vacuum Cleaner User Manual

: October 30, 2023
: Karcher

KARCHER SV 7 Steam Vacuum Cleaner

karcher-sv-7-steam-vacuum-cleaner

Product Information

The SV 7 is a steam vacuum cleaner designed for cleaning and disinfecting various surfaces. It has a water filter system that ensures only clean water is used during cleaning. The device has a steam power regulator that allows the user to control the amount of steam produced. Additionally, it has a suction function that enables it to suck up dirt and water from surfaces.

Product Usage Instructions

Register your product on www.kaercher.com/welcome
Prepare the device by filling it with a mixture of 50% distilled water and 50% tap water. Do not use rainwater.
Plug in the device to a socket with a pre-installed FI safety switch. Do not plug in if the socket or plug is wet.
Turn on the device using the main switch.
Select the desired steam and suction power using the steam power regulator and suction function buttons respectively.
When done, turn off the device using the main switch and unplug it from the socket.
Remove and clean the water filter after every use.
For cleaning textiles, insert the D2 window cleaning insert and move it back and forth over the fabric. For cleaning difficult-to-reach areas, use the nozzle attachment.
For cleaning stainless steel and windows, use caution to avoid damage from steam on cold surfaces during periods of low temperature.

General information

Dear Customer,
Please read and comply with these original instructions prior to the initial operation of your appliance and store them for later use or subsequent owners.

Proper use
This appliance is designed for domestic use only. The machine is designed for generating steam and vacuum cleaning spilled liquids and solid substances according to the description in this Operating Instructions Manual.
The manufacturer is not responsible for any damages that may occur on account of improper use or wrong operations.

Symbols in the operating instructions

DANGER
Immediate danger can cause severe injury or even death.

WARNING
Possible hazardous situation that could lead to severe injury or even death.

CAUTION
Possible hazardous situation that could lead to mild injury to persons or damage to property.

ATTENTION
Pointer to a possibly dangerous situation, which can lead to property damage.

Symbols on the machine

Steam
CAUTION – Danger of scalding

The steam jet may not be directed at persons, animals, live electrical equipment or at the appliance itself.

Only use this appliance to vacuum up spilled liquids. The appliance is not suitable for vacuuming liquids from containers.

Environmental protection

The packaging material can be recycled. Please do not place the packaging into the ordinary re-fuse for disposal, but arrange for the proper recycling.

Old appliances contain valuable materials that can be recycled. Please arrange for the proper recycling of old appliances. Please dispose your old appliances using appropriate collection systems.

Electrical and electronic devices often contain components which could potentially pose a danger to human health and the environment if handled or disposed of incorrectly. However, these components are necessary for the proper operation of the device. Devices marked with this symbol must not be disposed of with regular household rubbish.
Notes about the ingredients (REACH)
You will find current information about the ingredients at: www.kaercher.com/REACH

Warranty

The warranty terms published by the relevant sales company are applicable in each country. We will repair potential failures of your appliance within the warranty period free of charge, provided that such failure is caused by faulty material or defects in manufacturing. In the event of a warranty claim please contact your dealer or the nearest authorized Customer Service center. Please submit the proof of purchase.
(See address on the reverse)

Spare parts
Only use original accessories and spare parts, they ensure the safe and trouble-free operation of the device. For information about accessories and spare parts, please visit www.kaercher.com.

Safety instructions

Apart from the notes contained herein the general safety provisions and rules for the prevention of accidents of the legislator must be observed.
Any use of the machine in contravention with the following instructions will lead to warranty claims being rendered void.

DANGER

The appliance may not be used in areas where a risk of explosion is present.
If the appliance is used in hazardous areas the corresponding safety provisions must be observed.
Never use the appliance in pools containing water.
Do not level the steam jet directly at equipment that contains electrical components, such as the inside of ovens. Check the faultless condition of the appliance and the accessories before using it. Otherwise, the appliance must not be used. Please check in particular the power cord, the safety lock, and the steam hose.
If the power cord is damaged, please arrange immediately for the exchange by an authorized customer service or a skilled electrician.
Please arrange for the immediate exchange of a damaged steam hose. You may only use a steam hose that is recommended by the manufacturer (see spare parts list for the order number).
Never touch the mains plug and the socket with wet hands.
Never operate the machine barefoot.
Do not touch the machine with wet hands or feet when the mains plug is inserted in the socket.
Never dip the machine, the cable or the plugs in water or other liquids.
Never use the appliance to clean objects containing hazardous substances (e.g. asbestos)
Never touch the steam jet from a short distance with your hands and never direct the steam jet to persons or animals (risk of scalds).

WARNING

The appliance may only be connected to an electrical supply which has been installed in accordance with IEC 60364.
The appliance may only be connected to alternating current. The voltage must correspond with the type plate on the appliance.
In wet rooms, e.g. bathrooms, connect the appliance to sockets with a series-connected RCD adapter.
Unsuitable electrical extension cables can be hazardous. Only use a splash-proof electrical extension cable with a minimum cross-section of 3×1 mm².
The connection between power cord and extension cable must not lie in water.
If couplings of the power cord or extension cable are replaced the splash protection and the mechanical tightness must be ensured.
The operator must use the appliance correctly. When working with the appliance, he must consider the local conditions and pay due care and attention to other persons, in particular children, who are nearby.
This appliance is not intended for use by persons with limited physical, sensory or mental capacities or lacking experience and/or skills, unless such persons are accompanied and supervised by a person in charge of their safety or they have received precise instructions on the use of this appliance and have understood the resulting risks.
Children may only use this appliance if they are over the age of 8 and supervised by a person in charge of their safety, or if they have received instructions on the use of this appliance and have understood the resulting risks.
Children must not play with this appliance.
Supervise children to prevent them from playing with the appliance.
Cleaning and user maintenance must not be performed by children without supervision.
Never leave the appliance unattended when it is in operation.
Be very careful while cleaning tiled walls with sockets.
Do not use the machine to vacuum clean acids or other solutions as they can damage the machine. Also do not suck in explosive powders or liquids as this can lead to explosion when these substances come in contact with the internal parts of the machine.
Do not suck in toxic substances.
Do not suck in burning or glowing objects such as cigarette buds, ash or other burning or glowing materials.
Should the appliance fall down, it must be checked by an authorised after-sales service as internal disturbances could be present, which constrain the safety of the product.

CAUTION

Make sure that the power cable or extension cables are not damaged by running over, pinching, dragging or similar. Protect the power cable from heat, oil, and sharp edges.
Always switch off the machine and remove the plug while filling the machine with water.
Never fill solvents, solvent-containing liquids or undiluted acids (e.g. detergents, benzene, paint thinner, and acetone) into the water reservoir as these substances affect the materials used on the appliance.
The appliance must provide of a stable ground.
Do not place the machine on heat-sensitive surfaces.
Do not place the machine in the vicinity of swtichon stoves, electrical ovens or other sources of heat.
Press the switches lightly and avoid using sharp objects such as pins, pens/pencils and similar objects.
Use and store the unit only in accordance with the specifications in the description and/or figure.
The steam switch must not be locked during the operation.
Please switch off the machine first using the main switch before disconnecting the machine from the mains.
To separate the machine from the mains, pull the plug and not the power cord.
Never wind the main cable around the machine, definitely not till the machine is still hot.
Protect the appliance from rain. Do not store outside.

Safety installations

Safety devices serve for the protection of the user and must not be put out of operation or bypassed with respect to their function.

Release button

The handle on the steam suction hose is equipped with a release button, which prevents accidental steam release.
In the event that the steam suction hose is shortly unattended during operation, it is recommended to activate the release button (push the stop button).
In order to trigger the steam release again, deactivate the release button (push the stop button again).

Description of the Appliance

The scope of delivery of your appliance is illustrated on the packaging. Check the contents of the appliance for completeness when unpacking.
In the event of missing accessories or any transport damage, please contact your dealer.

Please unfold the pages with the diagrams!

karcher-sv-7-steam-vacuum-cleaner-5

Main switch
Steam boiler switch
”Low water” – indicator lamp
Indicator lamp – Pressure level
Indicator lamps – vacuum performance
Transport handle, retractable
Filling nozzles for water tank
Steam regulation
Appliance connector with flap
Air exit grid
Rollers
Power cord
Mains cable compartment
Parking holder
EPA-filter
Lever for unhooking the HEPA filter
Water filter container
Handle for Water filter container
Water filter lid
Water filter inlay
Formed foam filter
Filter with micro-perforations
Pipe bender

Accessories

karcher-sv-7-steam-vacuum-cleaner-6

Steam accessories

A Steam suction hose
- A1 Accessory plug
- A2 Unlocking button
- A3 Steam button
- A4 Suction button
- A5 Handle
- A6 Steam plug
- A7 Steam plug lock
B Steam suction pipes
- B1 Parking position
- B2 Lock lever
C Floor nozzle
- C1 Brush strip insert
- C2 Rubber lip insert
- C3 Hard rubber insert
- C4 Locking of the inserts
D Steam suction hand nozzle
- D1 Window cleaning insert (wide)
- D2 Window cleaning insert (narrow)
- D3 Brush insert
- D4 Terry cloth cover
E Steam suction detail nozzle
- E1 Extension piece
- E3 Round brush
  Vacuuming accessories
- E2 Upholstery nozzle (small)
F Crevice nozzle
- G Upholstery nozzle (large)
- H Furniture brush
  Other accessories
- I Measuring cup
- J Pipe cleaning brush for pipes and suction hose
- K Accessory bag
- L Spare seals (O-ring set)
- M Defoamer liquid (FoamStop)

Preparing the Appliance

Filling the Water Reservoir

Note
Regular tap water can be used.
As water naturally contains lime, which can lead to formation of scale over time, it is recommended to use a mixture that consists of 50% tap water and 50% distilled water.

ATTENTION
Material damage due to incorrect filling of the water tank.

Do not use condensation water from the drier!
Do not fill with detergent or other additives (for example fragrances)!
Do not use pure distilled water! Max. 50% distilled water and 50% tap water.
Do not use collected rain water!

karcher-sv-7-steam-vacuum-cleaner-1

Illustration A1

Pull the filler neck of the water tank towards the outside.

Illustration A2

Illustration A3

Fill the water tank with approx. 0.5 litres of water until the float, which indicates the maximum filling level, can be seen.
Close the water tank.

Note
The steam boiler is automatically supplied with water from the water tank. Prior to the initial start-up, the water tank must be filled twice.

Filling the water filter container

ATTENTION
Material damage due to empty water filter container.

Ensure that the water filter container is always filled during operation.

karcher-sv-7-steam-vacuum-cleaner-2

Illustration B1

Lift the handle of the water container.
Pull out the water filter container.

Illustration B2

Turn the handle towards the back.

Illustration B3

Remove the water filter insert.

Illustration B4

Fill the water filter container with tap water until the water level indicator MAX H2O is covered.
Add one cap full of the defoaming liquid (Foam-Stop) to the water filter reservoir.

Illustration B5

Reinsert the water filter insert into the water filter container.

Illustration B6

Move the handle to its original position until it locks in place.

Illustration B7

Insert the water filter container into the appliance using the handle.

Note: The functioning of the vacuum cleaner is based on the whirling of the suction air in the water filter. In the process, sucked-in materials and deposits of cleaning agents from floors get collected in the water bath. Thiscan sometimes lead to the formation of foam. It is necessary to add a capful of the defoamer liquid to the water bath to avoid this situation. Slight foam formation is normal and does not hamper the functioning of the machine.

Operation

Always place the machine in a horizontal position during operation.

CAUTION
Risk of injury due to accidental discharge of steam.

Ensure that the release button is always activated by the stop position during interruptions of work or when the appliance is not supervised.

Note
In order to continue the steam release, deactivate the stop position by pushing the button again.

Illustration C1

Open the flap of the appliance connector.
Tightly insert the steam plug into the appliance connector.
The plug must click into place audibly.

Illustration C2

Insert the mains plug into the socket.

Connecting the accessories

karcher-sv-7-steam-vacuum-cleaner-4

Illustration D1

All accessories can directly be attached to the handle or to the steam suction pipes.

Illustration D2

In order to connect the two extension tubes with each other, the direction of the arrow must be observed.

Accessories for steaming and vacuuming

Illustration D1

Connect the handle or the extension tube to the desired accessory.

Illustration D2

CAUTION
Risk of injury on account of steam!

During the operation of the device, the locking levers must remain in the closed position!
The locking lever is in the middle, (position open).
To secure the accessories: Turn the locking lever to the right and slide it down (position closed).
Check accessory for safe connection prior to use.
To disconnect the accessories: Slide up the locking lever and turn it to the left.
The locking lever is now in the middle again, the accessories can be pulled apart.

Vacuum cleaning operation

You can use this appliance to vacuum dust as well as spilled liquids.

CAUTION
Risk of injury due to accidental discharge of steam.

Activate release button.

Illustration E1

Push the main switch.
The first level of the indicator lamps for the suction performance starts to flash.

Illustration E2

Briefly push the suction button on the handle.
The suction operation starts with the minimum performance.
The first level of the indicator lamps for the suction performance is continuously on.
End suction operation: Press suction button again briefly.

Note
When you restart the suction function, the machine starts at with the previously selected suction performance.

Setting the vacuum cleaning performance

The setting of the suction performance depends on the surface to be cleaned.

Illustration E2

Push the suction button and hold it down.
The suction performance initially increases continuously and then decreases continuously after reaching the maximum power.
This is indicated by the indicator lamps for the suction performance.

karcher-sv-7-steam-vacuum-cleaner-11

Note
The numbers indicating the levels correspond to the indication of the indicator lamps for the suction performance.

Water filter
If the waste water level in the water filter container has reached the maximum level, the vacuum cleaning function is automatically blocked. A higher speed of the motor is then audible. After 10 seconds, the appliances automatically switches to pause.

Illustration E1

Turn on the machine.

Illustration I

Drain the waste water from the water filter container.

Illustration B4

After that, water must be refilled until the required water level is reached.

ATTENTION
Material damage due to immediate restart during the pause function.

To avoid damage to the air outlet filter, do not switch on the appliance during the pause function.
To continue the cleaning work, refer to Chapter “Emptying and cleaning the water filter container”.

Steam operations

Illustration E1

Push the main switch.
The first level of the indicator lamps for the suction performance starts to flash.

Illustration F1

Push the steam boiler switch, the switch lights up.
Wait until the indicator lamp for the pressure indication is on.
The appliance is now ready for steam operation.

Illustration F2

Push the steam button on the handle.
Steam is dispensed as long as the steam button is held down.

Illustration F1

To end the steam operation, push the steam boiler switch.

Setting the steam outflow
The steam discharge can be optimised by operating the rotary switch of the steam control.

Illustration F3

To increase the steam discharge: Turn the rotary switch in a clockwise direction.
To decrease the steam discharge: Turn the rotary switch in a counter-clockwise direction.
Mild steam: (Setting 1-2)
To sprinkle water on plants, clean fabrics, tapestries,uphostered furniture, etc.
Normal steam: (Setting 3)
For carpeted floors, carpets, window panes, floors.
Heavy steam: (Setting 4-5)
To remove hard dirt, stains and grease.

Filling the Water Reservoir

The water reservoir may be refilled at any time.

Note
If there is not enough water in the steam boiler, the pump automatically delivers water from the water tank into the steam boiler. If the water tank is empty, the pump can no longer fill the steam boiler and the steam tapping is blocked.

Water shortage in the water tank is indicated by the indicator lamp for water shortage and an audible signal.
To continue work, refer to Chapter “Filling the water tank”.

Steam and vacuum cleaning operation

Illustration E1

Push the main switch.
The first level of the indicator lamps for the suction performance starts to flash.

Illustration F1

Push the steam boiler switch, the switch lights up.
Wait until the indicator lamp for the pressure indication is on.
The appliance is now ready for steam operation.

Illustration E2

Illustration F2

Simultaneously push the steam button and briefly the suction button on the handle.
The suction operation starts with the minimum performance and steam is discharged simultaneously.
For further use of the steam and vacuuming function see Chapter “Steaming operation and vacuuming operation”

Putting Down the Accessories

Illustration G

Place the steam suction pipe in the parking holder during interruptions of work.

Energy saver mode

If the appliance is not used for more than 15 minutes, it automatically changes into the standby mode and the boiler switches off.
The first stage of the indicator lamp for the suction performance starts to flash more slowly as with the normal switch-on of the suction indicators.
There are the following options for recommissioning:

Illustration E1

Switch the main switch off and back on. or

Illustration E2

Illustration F2

Push the steam button or suction button for at least 3 seconds.

Finish operation

Illustration E1

Push the main switch.

Illustration C2

Separate the mains cable from the power supply system.

karcher-sv-7-steam-vacuum-cleaner-13

Illustration H

Disconnect the steam plug from the appliance.
Hold the steam plug lock down and pull the steam plug out of the appliance connector.

Storing the Appliance

ATTENTION
Material damage due to a lack of cleaning the accessories after use.

Always thoroughly clean all accessories prior to storing the appliance.
Disconnect all accessories.
Rinse all accessories with clear water under a tap.
Rinse pipes and steam suction hose with clear water using the pipe cleaning brush.
Allow accessories to dry afterwards.
Store the appliance at a dry and frost-proof location.

Emptying and cleaning the water filter container

Illustration B1

Lift the handle of the water container.
Pull out the water filter container.

Illustration B2

Turn the handle towards the back.
Remove the water filter insert.

karcher-sv-7-steam-vacuum-cleaner-12

Illustration I

Draining the water filter container by tilting it towards the pouring device.

Illustration J

Pull the pipe bend off the filter casing with the grid with the micro-perforation until it is completely removed.
Remove all components and rinse them under running water.
Replace filter in case of damage.
Please contact the authorised customer service in order to purchase a new filter.

ATTENTION
Material damage due to incorrect installation of the pipe bend in the filter with the micro-perforation.

Upon installation insure that the arrow on the pipe bend matches the marking on the filter with the micro-perforation.

Illustration B3

Reinsert the water filter insert into the water filter container.

Illustration B1

Insert the water filter container into the appliance using the handle.

Illustration B1

Move the handle to its original position until it locks in place.

Illustration L

Evenly roll up the power cable and place it in the power cable compartment.

karcher-sv-7-steam-vacuum-cleaner-14

Illustration M

Put the water filter container back in its position and ensure that it is properly placed.

How to Use the Acecssories

Please read the cleaning instructions of the manufacturer before treating leather, special fabrics and wooden surfaces and always do a trial on a sample or some hidden part. Let the steam-treated surface dry and then check whether there are any changes to the colour or form on account as reaction to the steam.
We recommend that you be very careful while cleaning wooden surfaces (furniture, doors, etc.) because long exposure to steam can damage the wax coating, the finish or the surface colours. Hence we recommend that you use steam only for short intervals or first clean the surface with a cloth that has been steam-moistened.
For highly sensitive surfaces (for e.g. synthetic materials, painted surfaces, etc.) we recommend that you use the steam function at the minimum performance level.
Cleaning of stainless steel: Avoid the use of abrasive brushes. Use hand nozzle with rubber lip or detail nozzle without a round brush.

Refreshing textiles

Always test the compatibility of the fabrics on a hidden spot prior to treating them with the appliance: Steam first, then allow to dry before checking for colour changes or deformation.

Floor nozzle

ATTENTION
Material damage if the setting of the steam level is too high.

Sensitive floors, such as parquet floors may only be cleaned with the highest suction performance and minimum steam level.

Application examples

Cleaning of large surfaces, floors made of ceram-ics, marble, parquet, carpets, etc.
Floor nozzle with brush strip insert: For etching and scrubbing down stubborn soiling.
Floor nozzle with rubber lip insert: For vacuuming up liquids from smooth surfaces.
Floor nozzle with hard rubber insert: Cleaning and refreshing of carpeting.

Mounting the attachments

Illustration D3

Slide the locking mechanism of the floor nozzle out-wards.
Put the insert into the bottom side of the brush.
To secure the insert, slide the locking mechanism inwards.
Removing the insert: Slide the locking mechanism outwards again.
Remove the insert.

Detail nozzle
The closer you hold the nozzle to the dirty spot, the higher the cleaning effect as temperature and pressure of the steam reach their maximum values immediately when they are emitted from the nozzle.

Application examples

The use of the detail nozzle is recommended for hard to reach areas.
Cleaning of stainless steel, window panes, mirrors and enamel surfaces.
Cleaning of corners on stairs, window frames, door posts, aluminium profiles.
Cleaning of fittings.
Cleaning of window shutters, radiators.

Detail nozzle and accessories

ATTENTION
Material damage (e.g. scratches on painted surfaces) due to the use of the round brush on sensitive surfaces.

Do not use the round brush on sensitive surfaces.
- The round brush is suitable for stubborn soiling on especially small surfaces such as stove tops, roller shutters, tile joints, sanitary facilities, etc.
- Extension: With this accessory an optimum clean- ing of places that are particularly hard to reach is possible. Ideal for cleaning heaters, door posts, windows. roller shutters, sanitary facilities.

Hand nozzle

Application examples
- The use of the hand suction nozzle is recommended for large glass and mirror surfaces, smooth surfaces in general or for the cleaning of textile surfaces, such as sofas, mattresses, etc.

Hand nozzle and accessories

Window cleaning insert wide: Window panes and surfaces of larger dimensions.
Window cleaning insert narrow: Window panes and surfaces of smaller dimensions.
Brush collar: For carpets, staircases, car interiors, textile surfaces in general (after carrying out a test on a hidden area). For abrasive cleaning and scrubbing.
Pull the terry cloth cover over the manual nozzle.
Especially well-suited for small washable areas, shower stalls and mirrors.

Cleaning of Glass

ATTENTION

Material damage due to steam release onto cold window panes.
In seasons with particularly low temperatures, prewarm the window panes by releasing steam with a distance of approx. 50 cm to the surface to be treated.
Material damage due to steam release onto sealed spots of the window frame.
Do not level the steam at these spots.
Apply steam to the glass surface from a distance of approximately 20 cm until the surface is moistened evenly.
Switch off the steam supply.
Strip the glass surface web by web from top to bottom by means of the rubber lip and vacuum off.
Wipe the rubber lip and the lower window frame dry as necessary.

Upholstery nozzle (small)

It is suitable to vacuum up dirt from narrow surfaces, such as tile joints, door frames, roller shutter slits, etc.

Upholstery nozzle (large)

For cleaning textile surfaces such as sofas, armchairs, mattresses, car seats, etc..

Crevice nozzle

For edges, joints, heaters and hard to reach locations.

Furniture brush

For cleaning sensitive surfaces such as picture frames, books, etc..

Special accessories

Round brush kit (order No. 2.860-231) 4 round brush-es for the detail nozzle.
HEPA Filter (Order No.. 2.860-229)

Care and maintenance

DANGER
Mortal danger due to electric current.

Turn off the appliance and remove the mains plug prior to any care and maintenance work.
Allow device to cool down.
Repair works may only be performed by the authorised customer service.

Care

Do not set the brushes onto the bristles during cooling or drying so that they do not deform.
Use a moist cloth for cleaning the machine from the outside. Avoid using any solutions or cleaning agents as they can damage the plastic surface.
For cleaning the water filter container, see Chapter “Storing the appliance”.

Maintenance

Check the condition of the seals in the steam plug regularly. Replace them as necessary.
Perform the same check for the connection seals of the steam pipes and the handle.

HEPA filter

ATTENTION
Material damage due to incorrect cleaning of the HEPA filter.

When necessary, clean under running water only, do not wipe or brush down.
Removal of the water filter container, see Chapter “Filling the water filter container”.

Illustration K

Lift the unhooking lever of the HEPA filter and remove the filter from the seating.
Rinse the HEPA filter under cold, running water.
Shake the filter carefully after cleaning so that any residual dirt or excess water is removed.

Note
Allow the HEPA filter to be air-dried by light and heat sources. Only reinstall the dry HEPA filter into the appliance.

Replace the HEPA filter in case of damage
The HEPA filter should be cleaned at intervals of 4 months.
Ensure the correct positioning of the HEPA filter in the holder.
Relock the HEPA filter by means of the lever.

Troubleshooting

Often, failures have simple causes and you can do the troubleshooting yourself using the following overview. If you are in doubt or if the failure is not listed here please contact the authorized customer service.

DANGER
Mortal danger due to electric current.

Turn off the appliance and remove the mains plug prior to any care and maintenance work.
Allow device to cool down.
Repair works may only be performed by the authorised customer service.

Appliance does not vacuum

Power supply is interrupted

Remove the mains plug, check the connecting cable and the mains plug for damage.

Accessories/suction hose/suction pipes are clogged or kept shut

If accessories/suction hose/suction pipes are clogged or kept shut for more than 10 seconds, a vacuum develops and the electronics switches off the motor for safety reasons.

Turn off the appliance.
Remove blocking.
Turn on the machine.

Weak/diminishing suction power

Accessory is blocked

Accessories, suction hose or suction tubes are clogged, please remove the obstruction.
Clean water filter insert.
Change the water in the water filter container.

HEPA filter is soiled