Instructions

Troubleshooting

• Receiver is unable to execute the command (load failure, me-

chanical blockade, etc.).

• Receiver is defective.

8.3 Duty cycle

The duty cycle is a legally regulated limit of the transmission time of de-

vices 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 trans-

mission 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. How-

ever, repeated and radio-intensive teach-in processes mean that it may

be reached in isolated instances during start-up or initial installation of

a system. If the duty cycle is exceeded, this is indicated by one long red

lighting of the system LED (H), and may manifest itself in the device tem-

porarily working incorrectly. The device starts working correctly again af-

ter a short period (max. 1 hour).

8.4 Error codes and ﬂashing sequences

Flashing code Meaning Solution

Short orange

ﬂashing

Radio transmission/at-

tempting to transmit/

data transmission

Wait until the transmission is

completed.

1x long green

lighting

Transmission con-

ﬁrmed

You can continue operation.