8
Troubleshooting and customer service
The unit has been manufactured using state-of-the-art production methods and has been tested several
times to ensure that it works properly. If malfunctions should occur, please check the unit as detailed in the
list below. Please inform your dealer if the unit is still not working correctly after all the function checks have
been performed.
Operational malfunctions
Fault description
Cause
Remedy
The unit does not operate, the control
panel remains dark
Mains voltage
Ensure that mains voltage is present (fuse)
Power failure
Check voltage and if necessary wait until
turned on again.
Mains fuse or con-
troller fuse faulty
Arrange to have exchanged
Power plug not
inserted in socket
Insert power plug
Power supply
defective
Check power supply for damage
The unit is working with reduced per-
formance
Exhaust air or
outlet openings are
dirty or blocked by
foreign bodies
Clean the openings, remove foreign bodies
Filter soiled
Clean the filter in accordance with the
instructions
Cooling load of the
room excessive
Reduce the thermal load
The unit does not work, LED indicator
"Timer" is flashing
"Timer"
Timer is programmed, delete the timer set-
ting.
The unit does not work, display shows
"E1"/"H1"
Room temperature This lies outside the operational limits of 16
to 35°C. Wait until the room temperature
lies within the operating range (reduce the
solar radiation and close windows and
doors if necessary).
The unit switches itself off automatically,
malfunction LED flashes and a signal
sounds (reservoir full)
Reservoir full
Proceed as follows to empty the reservoir:
1. Switch unit off, pull out power plug.
2. Place a shallow container underneath
the drain outlet and loosen the stopper.
3. After the condensate has drained off,
plug the stopper back in again firmly.
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