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Philips AC4080 Manual

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16
EN
Problem Possible solution
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) filter 2; 2)
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 the chapter "Clean the
air quality sensor").
The color of the air
quality light always
stays the same.
• The air quality sensor is dirty. Clean the air quality sensor
(see the chapter "Clean the air quality sensor").
• There is not enough ventilation in the room. Open a window,
to improve the air circulation.
I do not see water
vapor coming out
of the appliance. Is
it working?
When water vapor is very fine, it is invisible. With the
NanoCloud humidification technology, the appliance produces
healthy humid air from the outlet area without formation of
water mist.
The appliance
produces a strange
smell.
The first few times you use the appliance, it may produce
a plastic smell. This is normal. However, if the appliance
produces a burnt smell, contact your Philips dealer or an
authorized Philips service centre. The appliance may also
produce an unpleasant smell when one of the filters is dirty. In
this case, clean or replace the filter concerned.
I need cleaner air
because I have an
allergy.
You can change the air quality sensor sensitivity (see the
chapter "Use the appliance, section "Set the sensitivity of the
air quality sensor") to make the appliance clean the air even
better.
The appliance is
extra loud.
• Please check if you have removed all the packaging material
from the filters.
• If the appliance is still too loud, you can change the fan
speed to a lower fan speed level.
The appliance still
indicates that I
need to replace a
filter, but I already
did.
Perhaps you did not press the reset button
properly. Plug in
the appliance, press the
button to switch on and press and
hold the reset button
for 3 seconds.
… 18 …


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