Table of Contents
44 | Eliminate fault
Problem
Reason
DHW
DHW temperature
cylinder does
heat source set too
not heat up.
low.
DHW temperature
on heat source not set
too low.
If the DHW system is
controlled via a
module: flow
temperature
source set too low.
DHW program
incorrectly set.
The DHW heating
configuration does not
suit this heating
system.
The DHW at
Mixer set lower than
the draw-off
the required DHW
points is not
temperature.
reaching the
required
temperature.
0 is
Solar system set
displayed
incorrectly.
constantly in
the info
menu under
solar yield
even though
the solar
system is in
operation.
Table 39 Eliminating "sensed" faults
1) See operating instructions of the heat source for further
information.
6 720 820 871 (2016/12)
Solution
1)
at
Set the DHW
1)
temperature
higher.
1)
Contact contractor to
check the settings at
the user interface.
Set flow
1)
temperature
higher.
1)
at heat
Set DHW program.
Contact contractor to
check the settings at
the user interface.
If you are in doubt,
contact your
contractor to come
and check the mixer
setting.
Contact contractor to
check the settings at
the user interface.
9.2
Removing a displayed fault
NOTICE: System damage due to frost! The
system can freeze up if it is taken out of service
due to fault shutdown.
▶ Use Tab. 40 to check if the fault can be
fixed.
▶ If the fault cannot be fixed, contact your
contractor immediately.
A fault in your solar system is indicated on the display of the
user interface.
Fig. 6
Fault display
If there are multiple faults, the fault with the highest priority will
be displayed. Fault codes and sub-codes are displayed. The
codes inform your contractor about the possible cause.
Confirm a fault (press the selector) to switch to the standard
display. The continued presence of the fault is indicated in the
info line. If the fault is still active, it can be displayed once again
by pressing the Back key.
The cause can be a fault on the user interface, in a component,
in an assembly or on the heat source.
The system keeps operating as far as possible; in other words,
heating of the home can continue.
6 720 815 237-57.1O
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