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Problem
The airflow that comes
out of the air outlet is
significantly weaker than
before.
The air quality does not
improve, even though
the appliance has been
operating for a long time.
The colour of the air
quality light ring and the
air quality light always stays
the same.
I need cleaner air because
I have an allergy.
The appliance is extra
loud.
The appliance still indicates
that I need to replace a
filter, but I already did.
The appliance stops
operating, although the
power-on light is still on.
The appliance does not
work. Fan speed lights 1
and 2 flash, all other lights
are out.
The appliance does not
work. The air quality
light ring flashes blue, all
other lights are out.
The air quality light ring
keeps flashing purple.
Possible solution
• The pre-filter is dirty. Clean the pre-filter (see chapter 'Cleaning').
• You haven't removed all packaging material from the filters. Make sure
that you have removed all packaging material.
• 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) multi-layer filter, 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 chapter 'Cleaning').
• The air quality sensor is dirty. Clean the air quality sensor (see
chapter 'Cleaning').
• There is not enough ventilation in the room. Open a window, to
improve the air circulation.
You can change the air quality sensor sensitivity (see chapter 'Using the
appliance') to make the appliance clean the air even better.
• 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.
Perhaps you did not press the filter reset button properly. Plug in the
appliance, press the on/off button and press the filter reset button with a
flat tool.
The built in quality sensor has determined that the air quality is good and
that the air does not need to be cleaned anymore. When the air quality
deteriorates, the appliance starts running at a low fan speed and noise
level so that the energy consumption is minimised.
This is a component defect. Contact the Consumer Care Centre in your
country (you find its phone number in the worldwide guarantee leaflet). If
there is no Consumer Care Centre in your country, go to your local Philips
dealer.
This is air particle sensor error or an air particle sensor and gas sensor
error. Contact the Consumer Care Centre in your country (you find
its phone number in the worldwide guarantee leaflet). If there is no
Consumer Care Centre in your country, go to your local Philips dealer.
This is a gas sensor error. Switch off the appliance and unplug it. Take the
appliance to your Philips dealer or an authorised Philips service centre.
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