60
Gi
factory settings (refer to Section Resetting the De-
fault Factory Settings on Page 55)�
If
appears in the display
The battery charge status is displayed in the follow-
ing levels
>= 80%,
>= 60%,
>= 40%,
>= 20% and
< 20%� Change the batteries
for new ones of the same type�
Changing the Batteries
1� Remove the cover of the battery compart-
ment (6)�
Important!
Risk of damage to the
device through reverse poling when in-
serting the batteries�
▸
Pay attention the batteries are cor-
rectly aligned when inserted�
2� Insert the batteries in the battery compart-
ment (6)� ensuring correct polarity�
3� Replace the cover of the battery compart-
ment (6)�
During the course of a change of batteries, all cus-
tomized settings remain stored for 10 minutes� The
date and time must always be set anew (refer to
Section Setting the Date and Time on Page 52)�
Error Message F1 Appears in the
Display
The valve movement is sluggish� Check if the
radiator valve is blocked�
