Notes On Rectifying Malfunctions - HomeMatic HM-WDC7000 Bedienungsanleitung

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Notes on rectifying malfunctions

Possible malfunctions that could prevent transmitted measured values being
displayed properly:
No reception – The distance between the transmitter and the receiver is too long
or too short (<1 m).
Decrease/increase the distance between the transmitter and the receiver.
No reception – Materials with good shielding properties are located between the
transmitter and the receiver (thick walls, reinforced concrete, etc.).
Find another position for the transmitter or the receiver. Refer also to Section 6
("Range").
No reception – Transmitter batteries are empty.
Replace the batteries.
No reception – The transmitter is subject to a source of interference.
(Wireless device, radio headphones/loudspeaker)
Eliminate the source of interference or fi nd another position for the transmitter or the
receiver. Often the interference is only present on a temporary basis (radio telepho-
ny) or can be eliminated very easily. If radio headphones, wireless baby monitors
or other similar devices are operated at 868 MHz in your home or in the neighbour-
hood, for example, they are usually only switched on for a limited period of time.
The majority of these devices can be moved to an interference-free frequency and a
measure such as this can mask interference really effectively.
Wireless sensor interferes with other devices in the 868 MHz band
Transmissions from the wireless outdoor sensor can interfere temporarily (every 2 to
3 min for around 100 ms) with other devices working on the same channel.
Additional notes on start-up and the rectifi cation of malfunctions
Rotate the weather station a little if necessary or, if reception is poor, posi-
tion it far away from electric motors, electrical machinery, television sets,
computer monitors and large metal surfaces.
To make start-up easier you can initially position the sensors in the vicinity of the
base unit (but at least 1 m away from it). This enables you to check that the sensor is
transmitting data correctly.
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