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Problem Possiblesolution
The appliance stops
operating, although the
power-on light is still on.
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.
The appliance does not
work. Fan speed lights 1, 2
and 3 ash, all other lights
are out.
This is a component defect. Contact the Consumer Care Centre in your
country (you nd its phone number in the worldwide guarantee leaet). If
there is no Consumer Care Centre in your country, go to your local Philips
dealer.
The appliance does not
work. Fan speed lights 1
and 2 ash, all other lights
are out.
This is a component defect. Contact the Consumer Care Centre in your
country (you nd its phone number in the worldwide guarantee leaet). If
there is no Consumer Care Centre in your country, go to your local Philips
dealer.
AC4074: The appliance
does not work. The air
quality light ring ashes
blue, all other lights are
out.
This is air particle sensor error or an air particle sensor and gas sensor
error. Contact the Consumer Care Centre in your country (you nd
its phone number in the worldwide guarantee leaet). If there is no
Consumer Care Centre in your country, go to your local Philips dealer.
AC4074: The air quality
light ring keeps ashing
purple.
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.