24
Failure
Cause
Solution
„FAIL“ appears on the
display during the set-
up process.
Problem when
saving the settings or
communication failure
during the setting.
Repeat the set-up
process from the
beginning.
Display shows the
signal loss symbol.
Power failure. For
safety reasons
the air flap opens
automatically.
Check the power
supply of the control
unit.
Display is out of reach
of the control unit.
Reduce the distance
between the display
and the control unit.
The display and the
control unit are not
set-up to the same
communication
channel.
Repeat the whole
setting up process
from the beginning.
The communication
between the display
and the control unit is
interfered.
Repeat the whole
setting up process
and set a different
communication
channel in step 5.
TROUBLESHOOTING
