11 Fault rectification
3 Designer cover
4 Cover
3. Attach cover, switch on mains fuse, remove
warning sign and carry out function test.
11 Fault rectification
Fault finding only by qualified electrician.
Call on the services of a qualified electrician
any time there is a fault. Repairs should only
be carried out by a qualified electrician.
Switch off mains fuse, secure against being acci-
dentally switched back on and position a warning
sign.
Fault
Both LEDs off.
Both LEDs blink three
times.
Both LEDs blink five
times.
24
Cause, measures
No mains voltage.
Check whether the mains
fuse has failed. Switch on
if necessary.
Internal climate sensor
error. The internal cli-
mate sensor has not
been detected. Check for
firm seating and correct
mounting orientation.
External climate sensor
error. The connection to
the external climate
sensor is interrupted.
Check the sensor con-
nection cable and plug
contact.
Fan does not switch
on
12 Dismantling
Dismantling only permitted by a qualified elec-
trician.
DANGER Danger to life from electric
shock.
Switch the mains fuse off.
1. Remove covers.
2. Remove the electronics cover.
3. Remove power cable.
4. Remove fan.
13 Environmentally responsible
disposal
The unit and the packaging contain parts that can
be recycled, and should not end up in the do-
mestic waste. Dispose of the packaging material
and the unit in an environmentally-friendly way, in
compliance with the regulations valid in the coun-
try where you are.
Impeller blocked.
Should only be carried
out by a trained special-
ist: Remove cover. Un-
lock internal grille via
locking hook (arrow) re-
move. Check impeller
and clean if necessary.