Replacing Batteries - HomeMatic HM-RC-Key4-3 Operating Manual

Start-up
• This will open the catch; you can then swing open
the battery compartment
cover. The cover will stay
connected to the housing.
• Place an LR03/AAA/micro
battery into the battery compartment, using the po-
larity markings to ensure the polarity is correct.
• Close the battery compartment by swinging the
battery compartment cover back on. Push the co-
ver towards the centre of the housing (applying a
little pressure) until it latches into place.

6.1.2 Replacing batteries

If you press a button on the wireless remote control and
the flashing code indicating empty batteries is displayed
(5 x red flashes), or the device being controlled does not
respond, replace the used battery with a new LR03/AAA/
micro battery, as described in the previous section. You
must observe the correct battery polarity.
Never recharge standard batteries. Do not
throw the batteries into a fire. Do not expose
batteries to excessive heat. Do not short-circuit
batteries. Doing so will present a risk of explo-
sion.
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