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9 Maintenance
8.7 Commissioning
1. Switch the mains fuse on.
2. Run function test.
3 Designer cover
4 Cover
3. Fit designer cover.
9 Maintenance
The unit is maintenance-free.
10 Cleaning
DANGER Danger to life from electric
shock.
Switch the mains fuse off.
NOTICE Risk of damage to unit if incorrect
cleaning agent is used.
Only clean the cover using water.
Do not use aggressive cleaning agents.
1. Only use a dry cloth to clean the internal parts
of the fan.
2. If the cover is very dirty, carefully remove it
and clean with water.
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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 electricians.
Switch off mains fuse, secure against being acci-
dentally switched back on and position a warning
sign.
Malfunction
Both LEDs off.
Both LEDs blink three
times.
Both LEDs blink five
times.
Cause, measures
No mains voltage.
Check whether the mains
fuse has failed. Switch on
if necessary.
Internal combination
sensor error. The in-
ternal combination
sensor has not been de-
tected. Check for firm
seating and correct
mounting orientation.
External combination
sensor error. The con-
nection to the external
combination sensor is in-
terrupted. Check the
sensor connection cable
and plug contact.
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