LED LED indicator Operating condition
Defrosting Flashes Defrost demand active
ON Defrost active
OFF No defrost
Central heating ON Heating operation
OFF Cooling mode or "Standby" mode
Cooling ON Cooling operation
OFF Heating mode or "Standby" mode
Reports
Internal faults are captured and dis-
played by the unit.
If there is a fault, the display shows
the corresponding code (see table
from page 29) alternating with the
return temperature.
Scanning messages
Press the following keys:
1. CD simultaneously and
briefly (< 2 s); the dis-
play shows "SET".
2. D until the display shows
"Err".
3. CD simultaneously and
briefly; the display
shows the first message.
Note
If there is no message the display
shows "– – –".
4. D to display any other mes-
sages that may be cur-
rent.
5. CD simultaneously and for at
least 5 s to reach the
next higher menu level.
6. CD simultaneously and for at
least 5 s to return to the
standard display.
Deleting messages
In the standard display, briefly (< 2 s)
press D.
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