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, The power-on light and one of the AIR QUALITY lights on the
control panel goes on.
Colour Air quality
Blue very good
Deep purple good
Purple fair
Red bad
Colour Air quality
Blue very good
Deep purple good
Red bad
, The appliance automatically starts operating in the auto mode.
To switch off the appliance, press and hold the on/off button again until the
power-on light goes out and unplug the appliance.
Note: When the humidity level in the room is very high, it is possible that
condensation develops on the air quality sensor. As a result, the AIR QUALITY
lights on the control panel may indicate that the air quality is bad even though
the air quality is good. In this case, the auto mode causes the appliance to
run at high fan speed. You can solve this by cleaning the air quality sensor. If
condensation develops frequently during periods of high humidity, we advise
you to use one of the manual speed settings.
When the appliance is switched on, the built-in air quality sensor
automatically measures the ambient air quality. When the auto mode is
activated, the appliance selects the most appropriate fan speed for the
measured air quality.
Note: When you use the auto mode, you can also use the timer function (see
section ‘Timer function in this chapter). In this case, the AUTO light, one of the
FAN SPEED lights, the TIMER light and one of the HOUR lights are on.
1 Press the on/off button to switch on the appliance.
, The appliance automatically starts operating in the auto mode.
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Theairqualitylightringshowsthequalityoftheair.
Air quality indication
Colour Airquality
Blue very good
Deep purple good
Purple fair
Red bad
To switch off the air quality light ring, press the AIR QUALITY button.
Note: The air quality light ring automatically goes on when the appliance is
switched on.
TheapplianceautomaticallystartsoperatingintheAUTOmode.
To switch off the appliance, press the on/off button again and unplug the
appliance.
Note: When the humidity level in the room is very high, it is possible that
condensation develops on the air quality sensor. As a result, the AIR QUALITY
light on the control panel and the air quality light ring may indicate that the
air quality is bad even though the air quality is good. In this case, the auto
mode causes the appliance to run at high fan speed. You can solve this by
cleaning the air quality sensor. If condensation develops frequently during
periods of high humidity, we advise you to use one of the manual speed
settings.
Fan speed lights/lter replacement lights
- The lights on the right-hand side of the control panel have a dual
function: they either indicate the fan speed or they indicate that the
lters should be replaced or cleaned.
- When lights 1 to 3/4 light up continuously, they indicate the current fan
speed.
- When light 1 ashes, you have to clean the pre-lter. When lights 2
and/or 3/4 ash, you have to replace these lters. If lights 2 and/or
3/4 ash, the REPLACE FILTER light also ashes (see chapter ‘Filter
replacement’ for more information).
- When lights 2, 3/4 and the REPLACE FILTER light are on continuously,
the appliance is locked (see chapter ‘Filter replacement lock’ for more
information).
Adjusting the air quality sensor sensitivity
People with certain health problems (e.g. allergies or asthma) have a
greater need for healthy air. For this reason, the appliance allows you to
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AC4072-4074_um_120424.indd 13 24/04/2012 15:47:31