Berker 7574 01 01 Mode D'emploi page 41

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6.2 Troubleshooting
Bus operation is not possible
Manufacturer's logo and message No connection to KNX controller are
displayed.
Cause: Bus voltage is not present.
Check bus connection terminals for correct polarity.
Check bus voltage by activating/pressing the programming button
No indication in display
Cause: Auxiliary voltage is not present.
Check connection for auxiliary voltage (polarity independent).
Check auxiliary voltage by means of measuring device.
6.3 Accessories
Temperature sensor
Design frame
6.4 Warranty
We reserve the right to make technical and formal changes to the product in
the interest of technical progress.
Our products are under guarantee within the scope of the statutory provisions.
If you have a warranty claim, please contact the point of sale or ship the
device postage free with a description of the fault to the appropriate regional
representative.
z
(5).
EK090
1319 xx xx
41