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20 EN
7 Troubleshooting
This chapter summarizes the most common problems you could encounter with the
appliance. If you are unable to solve the problem with the information below, contact
the Consumer Care Center in your country.
Problem Possible solution
The appliance
does not work
even though it is
plugged in..
The filter replacement code has been displaying on the screen
but you have not replaced the corresponding filter yet. The
appliance will be locked if you keep using the expired filter. In
this case, replace the filter and reset the filter lifetime counter.
The appliance
does not work
even though it is
switched on.
• The appliance is working but the buttons are not
responsive. Check if the child lock is on.
• The filter replacement code has been on continuously but
you have not replaced the corresponding filter, and the
appliance is now locked. In this case, replace the filter and
reset the filter lifetime counter.
The airow that
comes out of
the air outlet
is signicantly
weaker than
before.
• The pre-filter is dirty. Clean the pre-filter (see chapter
"Cleaning").
The air quality
does not improve,
even though the
appliance has
been operating for
a long time.
• One of the filters has not been placed in the appliance.
Make sure that all filters are properly installed in the
following order, starting with the innermost filter: 1)
NanoProtect S3 filter HEPA; 2) NanoProtect AC filter; 3)
pre-filter.
• The air quality sensor is wet. The humidity level in your
room is high and causes condensation. Make sure that the
air quality sensor is clean and dry (see chapter "Cleaning").
The color of the air
quality light always
stays the same.
The air quality sensor is dirty. Clean the air quality sensor (see
chapter "Cleaning").
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