Messages, errors and error handling
56
Error description /
message on display
Sensor break or short circuit
temperature sensor T1
Sensor break or short circuit
temperature sensor T2
Sensor break or short circuit
temperature sensor T3
Sensor break or short circuit
temperature sensor T4
Supply air temperature
too low
Minimum supply air
temperature < setpoint;
Factory setting 5 °C
Supply air temperature
> setpoint + 1 K
Intake air temperature
too low
Current intake air
temperature < setpoint
longer than 10 minutes
Intake air temperature
> setpoint;
control after 1 h
Supply air fan speed does
not report
manual adjustment of
an speed
Exhaust air fan speed does
not report
manual adjustment of
an speed
BUS components of the
controller are not detected
Restart (Off / On) of the
device
Fans are turned off,
no control by external
control unit
Table 4: Overview of messages, error visualisation and error treatment by means of the TFT touch panel