Krone BiG X 770-3 - Malfunctions Indicated on the Display; Switching the Temperature Display to ° Fahrenheit

Control and Display Elements
124
7.3.8 Switching the Temperature Display to ° Fahrenheit
8
Fig. 62
The current set-point temperature is shown in ° Celsius.
Press and hold the covered key (8) and press the key as well. The display switches
to ° Fahrenheit.
The current set-point temperature is shown in ° Fahrenheit.
Pressing the (8) key and
key again switches the display back to ° Celsius.
7.3.9 Malfunctions indicated on the display
Error code (F0)´
Fig. 63
Error in room temperature sensor is indicated by flashing indicator (F0).

NOTE
The control unit has recorded an error in the room temperature sensor. Controller is no longer
ready for operation.
Cause of sensor fault:
Short circuit or interruption in the sensor line, plug connection on the sensor or control unit,
temperature sensor defective. The controller will not be ready for operation again until the error
is eliminated. Then the sensor fault no longer appears.

NOTE
If a sensor fault occurs, the controller continues working with the setting which was valid before
the fault was recorded.