Appendix
0020288229_00
MiSet
Operating and installation instructions
21
A.2 Maintenance messages
#
Message
Description
Maintenance work
Interval
1
Water defi-
ciency: Fol-
low the in-
structions
in the heat
gen.
The water pressure is
too low in the heating
installation.
Refer to the operat-
ing instructions for the
relevant heat gener-
ator for information on
filling with water
See the operating
instructions for the
heat generator
B
-- Troubleshooting, maintenance message
B.1 Troubleshooting
Symptom
Possible cause
Measure
Display remains dark
Software error
1. Press and hold the button on the top right
of the system control for longer than five
seconds in order to force a restart.
2. Switch the mains switch on the heat gen-
erator that feeds the system control off and
back on again.
No power supply on
the heat generator
▶
Re-establish the power supply to the heat
generator; this is the same power supply
that feeds the system control.
The product is defect-
ive
▶
Replace the product.
No changes in the
display can be made
via the control ele-
ments
Software error
▶
Switch the mains switch on the heat gen-
erator that feeds the system control off and
back on again.
The product is defect-
ive
▶
Replace the product.
Heat generator contin-
ues to heat once the
room temperature has
been reached
Incorrect value in the
Room temp. mod.:
or
Zone assignment:
function
1. In the
Room temp. mod.:
function, set the
value
Active
or
Expanded
.
2. In the zone in which the system control
is installed, assign the system control's
address in the
Zone assignment:
function.
The heating install-
ation remains in do-
mestic hot water mode
Heat generator cannot
reach the max. target
flow temperature
▶
Reduce the set value in the
Max. target
flow temperature:°C
function.
It is not possible to
switch to the installer
level
You do not know the
code for the installer
level
▶
Reset the system control to the factory set-
ting. All set values will be lost.