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Troubleshooting
This unit has been designed using state-of-the-art manufacturing processes and it has been tested repeatedly to
ensure that it is working properly. However, should problems occur, refer to the following list.
Problem
The unit does not start or
switches itself off automati-
cally.
The unit is either not cooling
at all or only cooling a little
bit.
The unit does not to respond
to the infrared remote con-
trol.
Condensation water leaks
out of the device.
Should the unit still not be working despite these checks, please contact an authorised service centre.
Unplug the unit from the power supply before performing any work on it!
Possible cause
Power failure.
Defective power fuse /
main switch is off.
Power supply line damaged.
Temperature range is either
too high or too low.
Water tank is full.
The surrounding temperature is
outside of the operating range
(16 to 35 °C).
The exhaust hose is bent, ex-
tended, facing downwards or
blocked.
Dirty filter
Input and/or output opening
blocked by foreign matter.
Minimum clearance is insuffi-
cient.
Windows and doors open /
thermal load increased.
Low pressure in the setup
room when operating the unit.
"Cooling" operating mode not
set.
Device is switched on with the
timer function.
Temperature setting too high.
Excess voltage due to light-
ning.
Remote-control batteries are
dead or the transmission dis-
tance is too far.
Polarity of the batteries is in-
correct after replacement.
The device is not standing up-
right.
The plug for the condensation
drain is not inserted correctly
or is damaged.
Check
Are all other electrical compo-
nents working?
Are all currents for lighting
functional?
Are all other electrical compo-
nents working?
Is the fan still working?
Is the "Tank Full" signal light lit
up?
Does "E1" appear on the dis-
play?
Does the cooling performance
improve when the device is
operated without an exhaust
hose and without a filter?
Are the filters dirty?
Does the cooling performance
improve when the device is
operated without a filter?
Has the minimum distance of
50 cm been maintained?
Has something been changed
in the design or application?
Does the cooling performance
improve when a door or win-
dow is opened?
Is the "AUTO, HI, MED or LO"
LED lit up in the display?
Is the "AUTO, HI, MED, LO or
FAN" LED lit up?
Is the temperature setting
higher than the temperature of
the room?
Was there lightning recently in
the region?
Does the button function work
at a distance of approx. 1 m?
Is the polarity correct?
Is the device upright?
Is water dripping out of the
condensation drain?
Remedy
Check current and wait for the
device to start again.
Replace power fuse.
Switch on main switch.
Maintenance by authorised
personnel.
Keep the unit within operating
temperature range 20 to 35°C.
Empty tank. See page 7.
Do not operate the unit out-
side of the operating range.
Make sure that the exhaust
channel is not blocked.
Clean filter and reinsert it into
the unit.
Maintain minimum distance.
Close windows and doors /
reduce thermal load.
Correct pressure in the setup
room.
Set operation mode to "AUTO,
HI, MED or LO".
Press the I / 0 button again.
Lower temperature.
Unplug the unit from power
supply with switch 5 and re-
start.
Replace batteries /
reduce distance or change lo-
cation.
Insert the batteries correctly.
Pay attention to the labels.
Place upright and make sure it
is firmly in place.
Insert the plug correctly or re-
place if necessary.
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