44
INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Maintenance and care
: Error list
Error list
See the list below for a complete description:
A B C
Error
code
Error
Possible cause
Action
required
Reset
-
Y
1
-
Filter alarm
Filter period
expired
Dismount filters and
inspect for dirt
Replace filters and
reset alarm
Reset alarm and
reset filter by
pressing and
holding alarm
button for 5
seconds
Press and hold
the centre
button on the
wireless remote
control for 10
seconds
The same proce-
dure can be used
to reset the filter
before the alarm
is triggered.
The filters are
not dirty, so the
filter period is too
short
Extend the filter
timer period
The filters are
dirty
Replace filters and
reset alarm
Filters are very
dirty, filter period
is too long
Replace filters and
reset alarm
Shorten the filter
timer period
1
R
1
E 1
Extract air fan
No feedback
about rotational
speed (tacho)
from extract air
fan
Extract fan power
cable not con-
nected
Connect the power
cable to the extract
air fan
Perform a
manual reset
by pressing the
alarm button on
the membrane
panel or by
turning the unit
off/on
Extract air fan
control cable not
connected
Connect control ca-
ble to extract air fan
Extract air fan not
working
Replace extract air
fan
Extract air fan un-
able to operate at
the desired speed
Fan speed set-
point too high
Decrease fan speed
setpoint
Automatic
reset after 140
seconds, but the
alarm reappears
if the problem is
still present
Fan defective
Replace fan
2
R
1
E 2
Supply air fan
No feedback
about rotational
speed (tacho)
from supply air
fan
Power cable to
supply air fan not
connected
Connect the power
cable to the supply
air fan
Perform a
manual reset
by pressing the
alarm button on
the membrane
panel or by
turning the unit
off/on
Supply air fan
control cable not
connected
Connect the supply
air fan control cable
Supply air fan not
working
Replace supply air
fan
Supply air fan
unable to run at
desired speed
Fan speed set-
point too high
Decrease fan speed
setpoint
Automatic reset
after 140 sec-
onds, but alarm
reappears if
problem persists
Fan defective
Replace fan
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