37EN
Problem Possible solution
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 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�
• 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 automatically because air quality
becomes worse� You can choose the Sleep mode with lower noise�
• If anything drops 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�
• If there is abnormal sound, contact the Consumer Care Center in
your country�
The screen displays
that the back cover is
opened�
• Shut o the power rst, then install the back cover correctly�
Connect the appliance with power and retry�
Error code “E1”
displays on the
screen�
• The motor has malfunctions� Contact the Consumer Care Center in
your country�
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