operation manual

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 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

displayed on the device or via the Homematic IP app (see

„8.3 Error codes and ﬂashing sequences“ on page 44).

In this case, replace the empty batteries by two new bat

teries (see „7 Replacing batteries“ on page 41).