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23. Carry out hardware reset
a hardware reset can be carried out in the event that the controller
fails to react to commands. In order to do so, pull out the upper
section of the controller from the lower part.
There is an opening on the rear of the upper section. The centre
of the opening contains two contacts which should be carefully
bridged for a few seconds with the help of a tool, for example,
a flat-head screwdriver.
The upper section of the controller can be replaced onto the
lower part as soon as the screwdriver has been removed from
the contacts.
The time and date will be lost during a hardware reset. all other
settings are retained.
