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9EN
English
Problem Possible solution
The airow that
comes out of the air
outlet is signicantly
weaker than before.
• The surface of the lter is dirty. Clean the surface of the lter (see
the chapter “Cleaning”).
The air quality does
not improve, even
though the appliance
has been operating
for a long time.
• Check if the packing material is removed from the lter.
• Make sure that the lter is properly installed.
• The air quality sensor is dirty or wet. Clean the air quality sensor
(See the chapter “Cleaning”).
• Room size is large or the outdoor air quality is poor.
For optimum purication performance, please close the doors
and windows when operating the air purier.
• There are indoor pollution resources. For instances, smoking,
cooking, incense.
• Filter reaches the end of life. Replace the lter with a new one.
The appliance
produces a strange
smell.
• The rst few times you use the appliance, it may produce a plastic
smell. This is normal. However, if the appliance produces a burnt
smell even if removing the lter, contact your Philips dealer or an
authorized Philips service center. The lter may produce smell
after being used for a while because of the absorption of indoor
gases. It’s recommended that you reactivate the lter by putting it
in direct sunlight for repeated use. If odor still exists, replace the
lter.
The appliance is
extra loud.
• Check if the packing of the lter is removed.
• The appliance will run in high speed when the air quality is poor,
which will causes higher noises. When using the appliance in a
bedroom at night, choose the Sleep speed.
• if anything drops into air outlet, it may also cause abnormal loud
sounds. Immediate turn o appliance, turn appliance upside
down, to get foreign objectives out of appliance.
The appliance still
indicates that I need
to replace a lter, but
I already did.
• Perhaps you did not reset the lter lifetime counter. Switch on the
appliance. Then press and hold the mode switch button ( ) for
3 seconds until disappears.
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