Part 4: Installation and Start-up
System
bus
57
Error messages
If a fault or error occurs in the heating system, you will see
a blinking warning triangle (
E
) and the related error
number on the E6 display. Please refer to the table below
for the significance of the displayed error code.
The system must be restarted after a fault has been
remedied => RESET.
RESET : Brief device shut-off (mains switch). Controller
restarts, reconfigures itself and continues to operate with
the values that have already been set.
RESET+
Ä
:
Overwrite all settings with default
values (except language, time and sensor values).
The additional button (
Ä
) must be pressed when the
controller is switched on (mains on) until "EEPROM"
appears in the display.
Error
Error description
Communication error
E 90 Addr. 0 and 1 on bus. Bus IDs 0 and 1 may not
be used simultaneously.
E 91 Bus ID used. The set bus ID is already in use by
another device.
Internal error
E 81 EEPROM error. The invalid value has been
replaced by the default value
E
Check
parameter values!
Sensor error (break/short)
E 69 Flow sensor HC2
E 75 Outdoor sensor
E 76 Storage tank sensor
E 78 Header sensor
E 80 Room sensor HC1
E 83 Room sensor HC2