57
Maintenance and cleaning
Possible error messages:
This error can only occur if you have taught-in
the sensor to a central control unit.
If the LED does not start to flash when the button has
been held down for five seconds, but lights up continu
-
ously instead, the sensor cannot be reset. In this case,
the system security key differs from the one supplied with
the product. Restore the factory settings of the sensor
via the WebUI user interface. Please refer to the WebUI
Manual for further information (you can find this in the
Downloads area of the website www.homematic.com).
8 Maintenance and cleaning
This product does not require you to carry out any main-
tenance other than replacing the battery when neces-
sary. Enlist the help of an expert to carry out any main-
tenance or repairs.
Clean the product using a soft, lint-free cloth that is
clean and dry. You may dampen the cloth a little with
lukewarm water in order to remove more stubborn
marks. Do not use any detergents containing solvents,
as they could corrode the plastic housing and label.
