Resetting To The Initial State; Device Led Feedback; Flashing Codes - HomeMatic HM-LC-Dim1T-FM Installation And Operating Manual

9 Resetting to the as-delivered state
To reset the actuator to the as-delivered state, put
the device into teach-in mode using the external
button (hold down for at least 4 seconds) after
switching the mains voltage off and back on again.
When the device is in teach-in mode, hold the
channel button down for at least 4 seconds again.
If the device LED flashes quickly, this indicates that
the actuator is being reset.

10 Device LED feedback

10.1 Flashing codes

Various actuator states are indicated by the channel
LED flashing:
Slow flashing
Fast flashing
One long flash, n brief
flashes (depending on
the type of error)
Teach-in mode
Reset
Error
33