User manual

35
Troubleshooting
Caution! There is a risk of explosion if the battery is not replaced
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 domestic
waste! Instead, take them to your local battery disposal point.
8 Troubleshooting
8.1 Weak batteries
Provided that the voltage value permits it, the weather sensor will remain
ready for operation also if the battery voltage is low. Depending on the
particular load, it may be possible to send transmissions again repeatedly,
once the batteries have been allowed a brief recovery period.
If the voltage drops too far during transmission, this will be displayed on
the device or via the Homematic IP app (see „8.4 Error codes and flashing
sequences“ on page 36). In this case, replace the empty batteries by
two new batteries (s. „7 Replacing batteries“ on page 34).
8.2 Command not confirmed
If at least one receiver does not confirm a command, the system LED
(H) lights up red at the end of the failed transmission process. The failed
transmission may be caused by radio interference (see „12 General infor-
mation about radio operation“ on page 42). This may be caused be the
following:
• Receiver cannot be reached.