Miele PAC 1045 Mode D'emploi page 66

en - Problem solving guide
Problem
After an interruption to the
power supply, the air puri-
fier loses data that has
been set (e.g. time, timer
values).
The yellow LED flashes
and the message
warning
is shown on the
display.
The red LED flashes and
the message F476 Thermo-
Control
is shown on the
display.
The red LED flashes and
F4029 warn-
the message
ing
is shown on the display.
The red LED flashes and
F2081 warning
the message
is shown on the display.
66
Cause and remedy
The button battery on the controls is flat.
Contact the Miele Customer Service Department.

You can keep using the air purifier until the battery is re-

placed by the Miele Customer Service Department. Re-
set the lost data via the Settings menu.
The CO2 limit has been reached or exceeded.
F2066 This message can be hidden temporarily by pressing the 
and  buttons briefly at the same time (<1 sec).
Ventilate the room in order to introduce fresh air and re-

duce the CO2 value. If the message persists after the
room has been thoroughly ventilated multiple times, con-
tact the Miele Customer Service Department.
The temperature of the heater element is not increasing as
expected.
Disconnect the air purifier from the power supply. Allow

the appliance to cool down for 10 minutes and check
whether the fault occurs again. If the fault occurs again,
contact the Miele Customer Service Department.
Filters are heavily soiled or the air intake vents are covered.
Disconnect the air purifier from the power supply. Check

whether the air intake vents are clear and clean the air
intake vents using a vacuum cleaner. Put the air purifier
back into operation. If the fault occurs again, contact the
Miele Customer Service Department or replace the pre-
filters and/or the main filter. In order to temporarily
achieve the original air throughput, the air throughput
rate can be manually increased until the filter is replaced
(e.g. by changing the room size from 60 m² to 80 m² in
the Settings menu or by manually increasing the fan
speed).
This message can be hidden temporarily by pressing the 
and  buttons briefly at the same time (<1 sec).
The main filter no longer works and must be replaced.
Contact the Miele Customer Service Department or re-

place the main filter (see "Cleaning and care – Filter re-
placement"). In order to temporarily achieve the original
air throughput when the main filter has stopped working,
the air throughput rate can be manually increased until
the filter is replaced (e.g. by changing the room size from
60 m² to 80 m² in the Settings menu or by manually in-
creasing the fan speed).
This message can be hidden temporarily by pressing the 
and  buttons briefly at the same time (<1 sec).