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Bagged or bagless Vacuum Cleaner

Bagged or bagless Vacuum Cleaner

Cleaning performance is reduced (Boost CX1)

The cleaning performance of the vacuum cleaner is reduced (Boost CX1).

The airways are blocked.

Something bulky has been vacuumed up (e.g. large leaves from house plants) and is blocking the suction tube. The casing gets very hot as air is unable to escape as required.

Disassemble the floorhead, hose, handle and telescopic tube.

You can carefully push large items which are jammed in the hose or in the telescopic tube towards the floorhead using a long object (e.g. a broom handle).

Items causing a blockage are usually easy to shake out of the handle.

The air intake ducting inside the vacuum cleaner is blocked.

Pressing the release button and removing the suction hose | Boost CX1 | Miele vacuum cleaner

Press the release buttons at the side of the hose connector and pull the suction hose out of the suction opening.

Unlocking and removing the dust container | Boost CX1 | Miele vacuum cleaner

Unlatch the dust container by lifting the handle upwards (1).

Remove the dust container (2).

The air intake ducting is now visible at the top of the vacuum cleaner.

To clear the blockage in the air intake ducting, use an object to push the large, jammed pieces down towards the suction hose.

The dust container is full and/or the filters are dirty.

The suction power decreases when the dust container is full or the fine dust filter, filter mat, filter frame and the pre-filter are dirty and/or the exhaust filter is clogged.

Clean the fine dust filter, filter mat, filter frame and the pre-filter as required, but at the latest when you notice a reduction in the suction power.

Clean the fine dust filter and the filter mat once a month and allow a drying time of 24 hours.

Switch the vacuum cleaner off using the On/Off foot switch.

Remove the mains plug from the socket.

Max. mark | Dust container | Boost CX1

Empty the dust container at the latest when the dust has reached the max marking on the dust container.

Empty and clean the dust container:

  • Unlocking and removing the dust container | Boost CX1 | Miele vacuum cleaner
  • Unlatch the dust container by lifting the handle upwards (1).

  • Remove the dust container (2).

  • The contents of the container can be disposed of with normal household waste, providing they consist of general household dust only.

  • Hold the dust container close to the bin to prevent dust from billowing out.

  • Opening the dust container | Boost CX1 | Miele vacuum cleaner
  • Press the release button on the bottom of the dust container.

    The flap will open and the dust will fall out.

  • Clean the dust container using a slightly damp cleaning cloth and mild washing-up liquid if necessary.

  • Dry the dust container thoroughly.

  • Close the flap, making sure it clicks into place.

Clean the fine dust filter and the filter mat:

  • The fine dust filter is located on the rear side of the dust container. It is equipped with a filter mat.

  • Removing the fine dust filter | Boost CX1 | Miele vacuum cleaner
  • Remove the fine dust filter in the direction of the arrow.

  • Removing the filter mat | Boost CX1 | Miele vacuum cleaner
  • Remove the filter mat from the fine dust filter.

  • Carefully knock the dust out of both filters over a bin.

  • Removing the cleaning tool | Boost CX1 | Miele vacuum cleaner
  • Take the cleaning tool out of the side flap on the dust container.

  • Using the cleaning tool to clean the fine dust filter | Boost CX1 | Miele vacuum cleaner
  • Clean the pleated side of the fine dust filter with the long brushes on the cleaning tool.

Risk of damage caused by incorrect cleaning.

The fine dust filter and the filter mat can become damaged. Both filters can lose their effect.

Do not use pointed or sharp-edged objects to clean the fine dust filter and the filter mat.

Do not use washing-up liquid or cleaning brushes when cleaning the pleated side of the fine dust filter and the filter mat with water.

After cleaning, allow the fine dust filter to dry for a minimum of 24 hours with the pleated side facing up. Make sure the room is well ventilated.

After cleaning, also allow the filter mat to dry for a minimum of 24 hours.

Clean the fine dust filter and the filter mat once a month and allow a drying time of 24 hours.

  • Cleaning the fine dust filter with water | Boost CX1 | Miele vacuum cleaner
  • Rinse the pleated side of the fine dust filter under cold running water.

  • Cleaning the filter mat with water | Boost CX1 | Miele vacuum cleaner
  • Clean the filter mat under cold running water.

  • Allow the fine dust filter and the filter mat to dry for a minimum of 24 hours.

  • Fitting the filter mat in the fine dust filter | Boost CX1 | Miele vacuum cleaner
  • Fit the dry filter mat in the dry fine dust filter so that the soft side of the filter mat is pointing up and the loop used to remove it is visible.

  • Fitting the fine dust filter in the dust container | Boost CX1 | Miele vacuum cleaner
  • Fit the fine dust filter carefully in the dust container.

  • Press the fine dust filter firmly into position.

In order to continue to achieve the best possible cleaning performance of the vacuum cleaner, replace the CX FSF fine dust filter with a new one after approx. 3 years.

Clean the filter frame and the pre-filter:

  • There is a removable filter frame on the rear side of the dust container side flap.

    Behind the side flap is a pre-filter.

    Clean the filter frame and the pre-filter if necessary.

  • Removing the side flap | Boost CX1 | Miele vacuum cleaner
  • Lift up the dust container handle and hold it in this position (1).

  • Press the release catch on the side flap. There is a cut-out on the opposite side to make it easier to remove the side flap (2).

  • Remove the side flap (3).

  • Once the side flap has been removed, the pre-filter inside can be accessed.

  • Risk of damage caused by incorrect cleaning.

    The pre-filter can become damaged and be less effective as a result.

    Do not use pointed or sharp-edged objects to clean the pre-filter.

  • Cleaning the pre-filter and the interior side panels | Boost CX1 | Miele vacuum cleaner
  • Clean the pre-filter and the interior side panels using the cleaning tool.

  • Clean the interior side panels using a slightly damp cleaning cloth and mild washing-up liquid if necessary.

  • Dry the interior side panels carefully.

  • The filter frame is located on the rear side of the removed side flap at the bottom.

  • Pressing the release catches on the side of the filter frame and removing the filter | Boost CX1 | Miele vacuum cleaner
  • Press the two release catches on the side of the filter frame and remove the filter.

  • Risk of damage caused by incorrect cleaning.

    The filter can become damaged and be less effective as a result.

    Do not use pointed or sharp-edged objects to clean the filter.

  • Clean the filter using the cleaning tool.

  • Clean the filter frame and the side flap using a slightly damp cleaning cloth and mild washing-up liquid if necessary.

  • Dry the filter frame and the side flap carefully.

  • Fitting the filter frame and filter | Boost CX1 | Miele vacuum cleaner
  • Refit the filter at the bottom of the dry filter frame and lock it, making sure it clicks into position.

  • Fitting the side flap with the filter frame in the dust container | Boost CX1 | Miele vacuum cleaner
  • Carefully fit the dry side flap with the filter frame at the bottom of the dust container (1).

  • Lift up the dust container handle and hold it in this position (2).

  • Press the side flap firmly into position (3).

  • Fitting the dust container | Boost CX1 | Miele vacuum cleaner
  • Insert the dry dust container back into the vacuum cleaner at an angle with the handle lifted up (1).

  • Latch the dust container into place by pushing the handle back down (2).

Replace the exhaust filter if necessary.

  • Depending on the model, your vacuum cleaner will be fitted as standard with one of the following exhaust filters:

    • Hygiene AirClean SF-HY 60 (turquoise): Replace this exhaust filter after approx. 1 year. Make a note of the date on the exhaust filter.

    • HEPA AirClean SF-HA 60 (white): Replace this exhaust filter when the timestrip® exhaust filter change indicator is completely red. The display will be completely filled with red after approximately 50 operating hours; this corresponds to approximately 1 year of average use. You can continue vacuuming when the light comes on. However, the suction power will be reduced, as will the filter performance if it is not replaced in good time.

  • Pressing the release button and removing the flap | Boost CX1 | Miele vacuum cleaner
  • Press the release button on the exhaust filter compartment flap and remove the flap.

  • Pulling the removal tab and removing the exhaust filter | Boost CX1 | Miele vacuum cleaner
  • Pull the exhaust filter removal tab upwards and pull the exhaust filter forwards to remove it.

  • Fitting the exhaust filter | Boost CX1 | Miele vacuum cleaner
  • Place the insertion aids that are located on both sides of the new exhaust filter into the guides on the exhaust filter compartment (1).

  • Push the exhaust filter back and up (2).

  • Press the exhaust filter firmly into position until it clicks into place (3).

  • Pressing the timestrip® exhaust filter change indicator | Boost CX1 | Miele vacuum cleaner
  • If you have fitted your vacuum cleaner with a HEPA AirClean exhaust filter, press the timestrip® exhaust filter change indicator: Expiry date. Check suitability for series maintenance before use!

  • After approx. 10–15 seconds, a thin red line will appear in the left-hand side of the display.

  • Fitting the exhaust filter compartment flap | Boost CX1 | Miele vacuum cleaner
  • Fit the exhaust filter compartment flap carefully in the bottom of the exhaust filter compartment and close the flap, making sure it clicks into position.

Additional information can be found in the linked video.

When using the turbobrush: the turbobrush is blocked.

Switch the vacuum cleaner off using the On/Off foot switch.

Remove the mains plug from the socket.

To remove threads and hairs, place the electrobrush upside down on a level, clean surface.

Cutting threads and hair from the roller brush | Boost CX1 | Miele vacuum cleaner

To guide the scissors, move along the guide track on the roller brush.

Cut any threads or hairs that have wound themselves around the roller brush with a pair of scissors.

Then run the vacuum cleaner to vacuum up the cut threads and hairs.

When using the turbobrush: the turbobrush speed drops.

The turbobrush is driven by the suction flow of the vacuum cleaner. With tightly woven carpets, the speed of the turbobrush can drop because the suction inlet is so tightly enclosed by the carpet pile that the air flow does not circulate. The brushing effect may then not be satisfactory.

Opening the air inlet valve | Boost CX1 | Miele vacuum cleaner

In this case, open the air inlet valve by turning the large brush symbol to the circle marking (upper section of the figure).

In all other cases, the air inlet valve must be closed so that the full suction power of the vacuum cleaner is released on the floor.

Close the air inlet valve by turning the small brush symbol to the circle marking (bottom section of the figure).

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