Philips AC4236 User Manual page 16

Problem
The appliance
does not work
even though it is
plugged in�
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 color of the
air quality light
always stays the
same�
The appliance
produces a
strange smell�
EN
14
Possible solution
• Check if the back cover is properly installed�
• The filter replacement alert has been on continuously
but you have not replaced the corresponding filter� As a
result, the appliance is now locked� In this case, replace
the filter and long press
counter�
• The surface of the filter is dirty� Clean the surface of the
filter (see the chapter "Cleaning and maintenance")�
• Check if the packing material is removed from the filter�
• The filter has not been placed in the appliance� Make
sure that the filter (FY4440/30) 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 purification performance, please close the
doors and windows when operating the air purifier�
• There are indoor pollution resources� For instances,
smoking, cooking, incense, perfume or alcohol�
• Filter reaches the end of life� Replace the filter with a
new one�
• The particle sensor is dirty� Clean the particle sensor
(see the chapter "Cleaning and maintenance")�
• 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 even if removing
filter, contact your Philips dealer or an authorized
Philips service center� The filter may produce smell after
being used for a while because of the absorption of
indoor gases� It's recommended that you reactivate the
filter by putting it in direct sunlight for repeated use� If
odor still exists, replace the filter�
to reset the filter lifetime