ALNOR
®
systemy wentylacji
jest prawnie chronionym znakiem i technicznym patentem. Prawo do zmian zastrzeżone.
30
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w
w
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.c
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pl
Instrukcja obsługi
HRU-WALL
Anomaly
Possible cause
Solution
No icon shown on the
controller LCD display
Batteries are dead
Change the batteries
Batteries are not present
Check that batteries are in there
Batteries are wrongly positioned
Position the batteries correctly
The unit does not execute
the command sent from
the remote control
Lack of communication between
the unit and the remote
controller
Go closer to the unit, pointing the control-
ler to the receiver on the left side of the
unit
The unit does not operate There is no voltage
Check that the unit is correctly wired to the
main supply
Ventilation unit does not couple
correctly with the support base
Check that the coupling is properly done
The unit operates at the
maximum speed
The Boost functionality is activat-
ed, on the display the icon is
shown
Wait until the boost timing ends (15
minutes) or deactivate the boost function
pressing the button.
Unit speed suddenly
increases
The smart humidity control is
activated
Wait until the smart humidity control
phase ends (10 minutes) or deactivate the
humidity control function pressing the
button for 5 seconds.
Fixed yellow led
Dirty filters
Filters maintenance/replacement is need-
ed: reset filter operation has to be done
(see page 18)
Fixed red led
Antifrost protection is activated
Wait until the antifrost phase ends (30
minutes)
Fixed blue led
Boost is activated
Wait until the boost timing ends (15
minutes) or deactivate the boost function
pressing the button.
Flashing blue led
Smart humidity control is activat-
ed
Wait until the humidity control phase ends
(10 minutes)
Fixed purple led
Ventilation unit does not couple
correctly with the support base
Check that the coupling is properly done
Acoustic signal to disable
Press the button for 7 seconds:
a green led flashes.
9. Troubleshooting
