88
Gi
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 (3) 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.
13� 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
using a soft brush, for example.
14� Disposal
Observe the identifications on the
packaging when sorting the waste
materials; the identifications are comprised
of abbreviations (a) and numbers (b) and
have the following significance: 1–7:
plastics / 20–22: paper and cardboard /
80–98: composite materials.
