37
Troubleshooting
Caution! There is a risk of explosion if the battery is not
replaced correctly. Replace only with the same or equiv-
alent 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 passage 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 dis-
played on the device or via the Homematic IP app (see „8.3
Error codes and flashing sequences“ on page 39). In this
case, replace the empty batteries by two new batteries (see „7
Replacing batteries“ on page 36).
