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7. Inserting/replacing batteries
• Remove the front cover. On both sides there is an opening; the front cover can be carefully
clipped off here using a one penny coin (make sure that the front cover is directed towards
the base section, do not twist the front cover!).
• Now insert two LR44 batteries, observing the correct polarity (the plus pole has to point
upwards while the minus pole should point towards the circuit board.) Simply slide the
batteries into the holding bracket.
Do not turn any setting controls and do not 'straighten' any parts!
• Then replace the casing cover, snapping it into place.
Only one orientation of the cover is correct! The opening on the front cover must
lie above the small additional circuit board (you will see the marking 'TOP' on
the plastic of the front cover and on the base plate). These must be aligned
before you clip the casing parts together.
• If the LED on the front side of the wall-mounted transmitter does not light up when you press
the buttons or you find that the range of the wall-mounted transmitter decreases, then you
need to replace the old batteries with new ones.
Make sure you always replace the whole set of batteries.
7
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