Behavior After Power Restoration; Maintenance And Cleaning - HomeMatic HM-LC-Sw1-Ba-PCB Mounting Instruction And Operating Manual

9.2 Operational status display
Apart from for the purpose of configuration, the device LED is not
used until the correct settings have been made via the control unit
or a programming tool. After that, it is used to signal the currently
applicable switching state.
After configuring the actuator with the center or a programming
tool, the device LED indicates other device states besides those
described. More relevant information is provided in the configuration
instructionsfor the devices and in the system manual.

10 Behavior after power restoration

After switching the operating voltage on (mains voltage returned),
the actuator checks the respective components. If an error is
detected during this test, it is indicated by a flashing LED. This is re-
peated continually and the device starts to work with the respective
functionality.
If the test runs without any errors, the actuator sends a radio
telegram with the respective status information. The actuator waits
a random delay time before sending so that all actuators are not
sending at the same time when the power returns (after a power
outage or shut-down). During this time, the device LED flashes (like
in teach mode). If the delay time is short, the flashing may not even
be noticeable.

11 Maintenance and cleaning

This product is maintenance-free. Repairs are only to be done by
trained professionals.
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