10 | Eliminating faults
6720830560 (2015/06)CR10
5 Eliminating faults
If a fault cannot be eliminated, note down the fault code and sub-code:
▶ Contact the approved contractor or Customer Service.
▶ Advise the type of fault and ID no. of the user interface.
Table 2 ID no. on the rear of the user interface (to be entered by the installer)
If there is a fault, the display shows alternately the fault code and the 3-digit sub-
code.
In the case of 4-digit sub-codes, initially the first two digits and then the last two
digits are displayed alternately with the fault code (e.g.: A21 ... 10 ... 01 ... A21 ...
10 ... 01 ...).
Closing the service menu Result
▶ Press and hold the selector until 3 dashes are displayed.
▶ Release the selector.
The current room temperature is displayed and the user
interface operates with the changed setting.
__ _
°C
°F
°C
°F
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