14
Alarm name
Explanation
Do the following
Supply air temperature
sensor
Indicates supply air temperature
sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Room air temperature sensor
Indicates room air temperature
sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Extract air temperature
sensor
Indicates extract air temperature
sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Extra controller temperature
sensor
Indicates extra controller
temperature sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Efficiency temperature
sensor
Indicates efficiency temperature
sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
PDM RH
Indicates internal relative humidity
sensor malfunction.
Active: measured humidity = 0%
Returned: measured humidity > 5%
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
PDM RH Extract air
temperature
Indicates internal extract air
temperature sensor malfunction.
Active: measured temperature = 0°C
Returned: measured temperature >
5°C
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Filter warning
Notification about filter change.
Filter have to be replaced in one
month time. Please acquire new
filters.
Filter
Time for filter change.
Change the filter.
Change filter according to the
instructions in the User Manual.
Details about filter retailers can be
found in Help menu.
Extra controller alarm
Error from external device.
Check if external device is connected
properly and cable is not damaged.
Reset overheat protection on
electrical pre-heater. Contact your
installation company or place of
purchase.
External stop
Unit is stopped by external signal.
Operation is stopped by digital signal
from external remote device or
signal from building management
system.
Manual fan stop active
Operation stopped, fans are in
manual mode and selected as
OFF
.
Select another speed of fans (
LOW
/
NORMAL
/
HIGH
) or
AUTO
mode in
HMI home screen.
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