14 EN
Problem Possible solution
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.
• The lter has not been placed in the appliance. Make sure that
the lter (FY3430/30) is properly installed.
• The particle sensor is wet. The humidity level in your room is high
and causes condensation. Make sure that the particle sensor is
clean and dry (see the chapter “Cleaning and maintenance”).
• 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, perfume or alchohol.
• Filter reaches the end of life. Replace the lter with a new one.
The color of the air
quality light always
stays the same.
• The particle sensor is dirty. Clean the particle sensor (see the
chapter “Cleaning and maintenance”).
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 lters, 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.
• It's normal if the appliance runs at the Turbo mode.
• In the Auto mode, if the appliance is too loud, maybe the
appliance runs at high speed because air quality becomes worse,
or your personalized setting in App triggers a higher fan speed.
You can choose the Sleep mode, or change the settings in the
App.
• If there is abnormal sound, contact the Consumer Care Center in
your country.
• If anything drop into air outlet, it may also cause abnormal loud
sound. Immediate turn o appliance, turn appliance upside down,
to get foreign objectives out of appliance.