
40
Eliminate fault
Sense ll – 6 720 812 775 (2014/10)
Problem
Cause
Remedy
Required room
temperature
not achieved.
Thermostatic valves
on the radiators are
set too low.
Set the thermostatic
valves higher.
Temperature for
heating mode is set
too low.
Set the temperature
for heating mode
higher.
System in summer
mode.
Switch system over
to winter mode
(
Flow temperature
controller on heat
source set too low.
Set the flow
temperature higher
(
operating
instructions for the
heat source).
Air in the heating
system.
Bleed the radiators
and the heating
system.
Installation location
of the outdoor
temperature sensor
is not optimal.
Contact Installer to
install the outside
temperature sensor
at a suitable
installation location.
Required room
temperature
greatly
exceeded.
Radiators become
too hot.
Set thermostatic
valves in adjoining
rooms lower.
Set temperature for
the operating mode
concerned lower.
Set temperature for
all operating modes
lower.
If the controller is
installed in the
reference room, if
the installation
location of
controller is
unfavourable,
e.g. external wall,
close to window, in
a draught ...
Contact Installer to
install the controller
at a suitable
installation location.
Table 39 Eliminating "sensed" faults
Excessive room
temperature
fluctuations.
Temporary
influence of external
heat on the room,
e. g. from solar
exposure, room
lighting, TV,
fireplace etc.
Contact Installer to
install the controller
at a suitable
installation location.
Temperature
rises instead of
dropping.
Incorrect time set.
Reset the time
Room
temperature
too high during
setback mode.
The building retains
a lot of heat.
Set an earlier
switching time for
setback mode.
DHW cylinder
does not heat
up.
DHW temperature
1)
on heat source set
too low.
Set the DHW
temperature
higher.
on heat source not
set too low.
Contact Installer to
check the settings on
the controller.
If the DHW system is
controlled via a
module: Flow
temperature
heat source set too
low.
Set flow
temperature
higher.
DHW program
incorrectly set.
Set DHW program.
The DHW heating
configuration does
not suit this heating
system.
Contact Installer to
check the settings on
the controller.
The DHW at the
draw-off points
is not reaching
the required
temperature.
Mixer set lower than
the required DHW
temperature.
If you are in doubt,
contact your Installer
to come and check
the mixer setting.
0 is displayed
constantly in
the info menu
under solar
yield even
though the
solar system is
in operation.
Solar system set
incorrectly.
Contact Installer to
check the settings on
the controller.
1) See operating instructions of the heat source for further
information.
Problem
Cause
Remedy
Table 39 Eliminating "sensed" faults