Fresh Air Boxes – ALB EC
Installation and Operating Instructions
19
EN
7 .5 Error description
Type of error
Check . . .
Solution
Nothing appears on the display. ...that the unit has power.
Check the fuse, residual current circuit-breaker and the
...that the cable is not damaged and it is correctly connection. Replace the damaged cable.
connected between the unit and controller.
Connect the cable correctly between the unit and contr-
oller.
Meny access is not possible,
...whether the button lock is activated.
Deactivate, press the left button for 3 seconds.
the buttons are locked.
”Please wait” is displayed.
...that the cable is not damaged and it is correctly Replace damaged cable. Connect the cable correctly
connected between the unit and controller.
between the unit and controller.
The unit does not start.
...that the unit is supplied with power.
Check the fuse, residual current circuit-breaker and the
connection.
...whether the setpoint is ”On”.
See page 8.
...that the unit is correctly connected.
See page 20.
After switching on, the unit will automatically acti-
vate with a delay of a few minutes.
...the other alarms.
See page 11.
The unit has stopped.
...that the unit has power.
Check the fuse and residual current circuit-breaker.
...whether an alarm has been triggered.
Check why the alarm was triggered (see below).
If the error has been rectified, restore alarm.
The filter measurement cannot ...that the pressure sensor is installed.
Activate sensor. See page 11.
be activated.
Other alarms:
Filter.
...whether the filters are dirty.
Replace filter.
...whether the set time for filter measurement has Replace filter. Reset timer for the service duration.
been reached.
Overheating.
... whether the safety temperature limiter in the
Reset the manual safety temperature limiter and the
electrical heating register has been triggered.
alarm.
Unit must be isolated from the power supply.
Low supply air temperature.
...whether the filters are dirty.
Replace filter.
...whether the heater is working.
Ensure proper functioning before commissioning.
Fire alarm.
...why the fire alarm has been triggered.
Ensure proper functioning before commissioning.
...whether the correct sensor type is selected.
Select the correct sensor.
Motor failure.
...that the motor is correctly connected.
Ensure proper functioning and replace defective fan
before commissioning
...that the impeller is not blocked.
Ensure proper functioning before commissioning.
Lack of supply air.
...the air inlet.
Clean the intake grille in case of contamination.
...the filter.
Replace filter.
Electrical heating register is
not warm.
...that the electrical heating register is correctly
connected.
See page 20.
...that the electrical heating register is activated
See page 12.
in the service menu.
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