61
Gi
Error Message F2 Appears in the
Display
The adjustment range of the radiator valve is too
large� Check that the radiator valve is properly
fitted.
Error Message F3 Appears in the
Display
The adjustment range of the radiator valve is too
small� Check if the radiator valve is blocked or the
valve resistance is too high�
Error Message F4 Appears in the
Display
The valve mechanism is not installed correctly or
the valve travel was not detected correctly� Repeat
the adaptation cycle�
If the error messages F1, F2, F3 or F4 appear in the
display and you have cleared the fault , press any
button� The device is automatically adapted again
and it can then be used as normal�
If necessary, pay attention that the radiator valve is
not blocked�
It is possible that the valve stem needs to be loos-
ened by gently moving it to and fro�
14. Cleaning
Clean the device using a dry, lint-free cloth� Do not
use any cleaning agents or solvents� Any dirt which
has accumulated in the air vents can be removed