Troubleshooting; Weak Battery; Command Not Confirmed - HomeMatic HMIP-SWDO Bedienungsanleitung

Troubleshooting

7 Troubleshooting
7.1

Weak battery

Provided that the voltage value permits it, the window /
door contact 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 repeat-
edly, once the batteries have been allowed a brief recov-
ery period.
If the voltage drops too far during transmission, this will
be displayed on the device or via the Homematic IP app
(see „7.4 Error codes and flashing sequences" on page
37). In this case, replace the empty battery by a new
one (see „6 Changing battery" on page 34).
7.2

Command not confirmed

If at least one receiver does not confirm a command, the
device LED lights up red at the end of the failed trans-
mission process. The failed transmission may be caused
by radio interference (see „10 General information about
radio operation" on page 40). This may be caused be
the following:
• Receiver cannot be reached.
• Receiver is unable to execute the command (load
failure, mechanical blockade, etc.).
• Receiver is defective.
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