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 wand. The casing gets very hot as air is unable to escape as required.
Disassemble the floorhead, hose, handle, and telescopic wand.
You can carefully push coarse particles which are jammed in the hose or in the telescopic wand toward 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 filters are soiled.
The fine dust filter is located on the rear side of the dust container. It is equipped with a filter mat. Clean both filters. Allow a drying time of at least 24 hours.
Clean the fine dust filter and the filter mat. Proceed as follows:
Remove the dust container.
The fine dust filter is located at the rear of the dust container.
Remove the fine dust filter in the direction of the arrow.
Remove the filter mat from the fine dust filter.
Carefully knock the dust out of both filters over a trash can.
Take the cleaning tool out of the side flap on the dust container.
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.
Rinse the pleated side of the fine dust filter under cold running water.
Clean the filter mat under cold running water.
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 liquid dish soap 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 in a well ventilated room for a minimum of 24 hours with the ribbed side facing up. Choose a well-ventilated room. After cleaning, also allow the filter mat to dry for a minimum of 24 hours.
Assemble the fine dust filter and the filter mat as follows:
Attach the dry filter mat to 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.
Install 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 results replace the CX FSF fine dust filter with a new one after approx. 3 years.
Reinsert the dust container in the vacuum cleaner.
Additional information can be found in the linked video.
Manual finder
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