Philips AC4072 - Fan Speed and Filter Status Lights; Adjusting Air Quality Sensor Sensitivity

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English
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 2 light up continuously, they indicate the current fan
speed.
- When light 1 ashes, you have to clean the pre-lter. When lights 2
ashes, you have to replace the multi-layer lter.
- When light 2 and the REPLACE FILTER light are ashing continuously,
the multi-layer lter have to replace, and 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
adjust the sensitivity of the air quality sensor. If you set it to higher sensitivity
level, the appliance starts cleaning the air at lower pollution level.
There are 3 sensitivity levels:
- Extra sensitive (default setting)
- Sensitive
- Standard
You can adjust the sensitivity of the air quality sensor in the following way:
1 Iftheapplianceisalreadypluggedin,unplugtheapplianceandwait
forafewminutes.
2 PresstheAIRQUALITYbuttonandsimultaneouslyputthemains
pluginthewallsocket.
 Theappliancebeepstwiceandoneofthefanspeedlightsashesto
showthecurrentsensitivityleveloftheairqualitysensor.
Sensitivity level:
Fan speed light Sensitivity level
Extra sensitive
Sensitive
Standard