Appendix
26
Operating instructions 0020237621_02
Setting level
Values
Unit
Increment, select
Default setting
Min.
Max.
Cooling
off
,
Auto
,
Day
Auto
1 day at home
Active, Not active
Not active
1 day away from home
Active, Not active
Not active
Ventilation boost
Active, Not active
Not active
Party function
Active, Not active
Not active
Basic settings
→
Enter zone name
→
ZONE1
1
10
Let-
ter/number
A to Z, 0 to 9, space
ZONE1
Basic settings
→
Ventilation
→
Heat recovery
Auto
,
Activate
,
off
Auto
Basic settings
→
Max. room air humidity
→
Max. room air hum.
30
70
%rel
1
40
Basic settings
→
Default setting
→
Time programmes
Yes
,
No
No
Everything
Yes
,
No
No
Installer level
→
Enter code
000
999
1
000
B
Troubleshooting
Symptom
Possible cause
Measure
Display remains dark
The batteries are flat
1.
Change all the batteries. (
→
Page 19)
2.
If the fault persists, inform the competent person.
No changes in the display when
the rotary knob is turned
Software error
1.
Take all the batteries out.
2.
Insert the batteries in the battery compartment, making sure
that the poles are the right way round.
3.
If the fault persists, inform the competent person.
No changes in the display
via the selection buttons are
pressed
Software error
1.
Take all the batteries out.
2.
Insert the batteries in the battery compartment, making sure
that the poles are the right way round.
3.
If the fault persists, inform the competent person.
Display view:
No RF commu-
nication
The reception strength is too
weak
1.
Take the system control to the radio receiver unit and see if
the reception strength increases.
2.
If the reception strength is greater than 4, have the compet-
ent person install the system control in a different location.
3.
If the reception strength when directly next to the radio re-
ceiver unit is less than 4, switch off the mains switch for all
the heat generators and then wait approximately 1 minute
before switching it back on.
4.
If the fault persists, inform the competent person.
Display view:
Button lock act-
ive To unlock, press OK for
3 seconds
, it is not possible to
change the settings or values
Button lock is active
1.
If you would like to change any of the values, follow the in-
structions on the display.
2.
Also read through the
Button lock
Activate (
→
Page 15)
function.
Display view:
Restricted opera-
tion/ comfort protection
, insuf-
ficient heating up of the heating
and the domestic hot water
Heat pump does not work
1.
Inform the competent person.
2.
Select the setting for limp home mode until the competent
person arrives.
3.
To do this, read through the Implementing the setting when
the heat pump fails (
→
Page 19) function.
