Response To Power Recovery; Maintenance And Cleaning - HomeMatic HM-OU-CFM-Pl Operating Manual

11 Response to power recovery

When the operating voltage is switched on (recovery of mains
voltage), the actuator checks its components. The LED will
flash if an error is detected during this check. This is repeated
continuously and the device does not perform its function. If
the test is completed without errors, the actuator transmits a
wireless telegram containing its status information. To prevent
all actuators from transmitting at the same time when power is
recovered (after a mains power failure or a disconnection,
for example), there is a random delay before the actuator
transmits. During this time, the device LED flashes (as in
teach-in mode). If the delay is very short, this flashing may be
almost imperceptible.

12 Maintenance and cleaning

The product does not require any maintenance. Enlist the help of
an expert to carry out any repairs. In the event of an error, please
return the device to our service department.
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