35
Malfunctions
16
16
16.1 Malfunctions with error messages
If the controller detects a malfunc-
tion, the red light
fl
ashes and the
warning symbol also appears in the
display. If the error is no longer pre-
sent, the warning symbol changes
to an info symbol and the red light
no longer
fl
ashes.
To obtain more detailed information
on the error, press the key under the
warning or info symbol.
Notes for the specialist:
Means that either the sensor, the
sensor input at the controller or the
connecting cable is/was defective.
(Resistance table on page 5)
Means that the temperature at the
glycol return is/was below the frost
protection temperature set in menu
6.2.
Means that the maximum tempe-
rature is/was below the maximum
heating circuit temperature set in
menu 6.3.
Means that the maximum tempe-
rature is/was below the maximum
domestic hot water temperature set
in menu 6.4.
Means that the controller was re-
started, for example due to a power
failure. Check the date&time!
(LED
fl
ashes + warning symbol)
Do not try to deal with this
yourself.
Consult a specialist in the
event of an error!
Danger
Possible error / information messages:
Sensor x defective ——————>
Frost protection ——
—————>
(Information message only)
Max. heating circuit ——————>
(Information message only)
Max. domestic hot water ———>
(Information message only)
Restart ———————————>
(Information message only)