54
Troubleshooting
Caution! There is a risk of explosion if the battery is not re-
placed correctly. Replace only with the same or equivalent
type. Never recharge standard batteries. Do not throw the
batteries into a fire. Do not expose batteries to excessive
heat. Do not short-circuit batteries. Doing so will present a
risk of explosion.
Used batteries should not be disposed of with regular do-
mestic waste! Instead, take them to your local battery dis-
posal point.
9 Troubleshooting
9.1 Command not confirmed
If at least one receiver does not confirm a command, the device LED
(D or L) lights up red at the end of the failed transmission process.
The failed transmission may be caused by radio interference (see
„12 General information about radio operation“ on page 58). The
failed transmission may also be caused by the following:
• Receiver cannot be reached.
• Receiver is unable to execute the command (load failure, me-
chanical blockade, etc.).
• Receiver is defective.
9.2 Duty cycle
The duty cycle is a legally regulated limit of the transmission time of
devices in the 868 MHz range. The aim of this regulation is to safe-
guard the operation of all devices working in the 868 MHz range.
In the 868 MHz frequency range we use, the maximum transmis-
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