operation manual

38
Troubleshooting
• To trigger a function test or to switch the actuator
on of o, press the system button
(B) shortly. The
device LED
(A) indicates the switching state. The
device LED lights up permanently as soon as the
actuator is switched on.
7 Troubleshooting
7.1 Command not confirmed
If at least one receiver does not confirm a command, the
device LED (A) lights up red at the end of the failed trans-
mission process. The failed transmission may be caused
by radio interference (see „1 Information about this man-
ual“ on page 27). This may be caused be the following:
• Receiver cannot be reached.
• Receiver is unable to execute the command (load
failure, mechanical blockade, etc.).
• Receiver is defective.