Troubleshooting
8.2
Command not confirmed
If at least one receiver does not confirm a command, the
device LED lights up red at the end of the failed trans-
mission process. The failed transmission may be caused
by radio interference (see „11 General information about
radio operation" on page 48). 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.
8.3
Duty cycle
The duty cycle is a legally regulated limit of the transmis-
sion time of devices in the 868 MHz range. The aim of
this regulation is to safeguard the operation of all devices
working in the 868 MHz range.
In the 868 MHz frequency range we use, the maximum
transmission time of any device is 1% of an hour (i.e. 36
seconds in an hour). Devices must cease transmission
when they reach the 1% limit until this time restriction
comes to an end. Homematic IP devices are designed
and produced with 100% conformity to this regulation.
During normal operation, the duty cycle is not usually
reached. However, repeated and radio-intensive teach-
in processes mean that it may be reached in isolated in-
stances during start-up or initial installation of a system. If
the duty cycle is exceeded, this is indicated by three slow
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flashes of the device LED, and may manifest itself in the
device temporarily working incorrectly. The device starts
working correctly again after a short period (max. 1 hour).
8.4
Error codes and flashing sequences
Flashing code
Meaning
Battery
Battery voltage
symbol ( )
low
Antenna
Connection to
symbol
Homematic IP
flashing ( )
Access Point
is lost
Lock symbol
Operating lock
( )
activated
Short orange
Radio
flashing
transmission/
attempting to
transmit
1x long green
Transmission
lighting
confirmed
1x long red
Transmission
lighting
failed
Troubleshooting
Solution
Replace the
batteries of the
device (s. „7
Replacing batteries"
on page 42).
Please check the
connection to the
Homematic IP
Access Point.
Deactivate the
operating lock via
the app.
Please wait, until
transmission has
been confirmed.
You can continue
with operation.
Please try again
(s. „8.2 Command
not confirmed" on
page 44).
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