11. Fault rectification
● Call on the services of a trained electrician
any time there is a fault.
● Repairs should only be carried out by a
trained electrician.
Danger to life from electric
shock.
DANGER
Switch off mains fuse before
working on electrical
connection.
Both
No mains voltage.
LEDs off.
Check whether the mains fuse
has failed. Switch on if
necessary.
External climate sensor error.
Both LEDs
The connection to the external
blink in one-
climate sensor is interrupted.
second
Check the sensor connection
intervals.
cable and plug contact.
Internal climate sensor error.
Both LEDs
The internal climate sensor
blink in three-
has not been detected. Check
second
for firm seating and correct
intervals
mounting orientation.
Impeller blocked.
Fan does
Should only be carried out
not switch
by a trained electrician:
on.
Remove cover [4]. Unlock
internal grille [8] via locking
hook ( arrow) remove.
Check impeller and
clean if necessary.
11. Fault rectification│ UK
12. Dismantling
Dismantling may only be undertaken
by an electrician.
Danger to life from electric
shock.
DANGER
Switch off mains fuse before
removing.
1. Unlock covers ( arrow) and remove.
2. Remove electronics cover [6]
(3 locking tabs).
3. Remove power cable.
4. Remove fan.
13. Disposal
Do not dispose of in domestic
waste.
The unit contains in part materials
that can be recycled and in part
substances that should not end up in
the domestic waste.
Dispose of the unit once it has reached the
end of its service life according to the
regulations valid where you are.
14. Wiring diagram
For wiring diagram see page 32.
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