Fault/Remedy
DCF77 signal is not received.
Check the location.
If necessary, start the radio reception
manually.
Set the time manually.
The time set differs from the actual time
precisely by one, two, three hours, etc.
You have probably set the wrong time zone.
Temperature indication appears too high.
Check whether the alarm clock is exposed to
direct sunlight.
Display is illegible, function is unclear or values
are obviously incorrect.
Reset the alarm clock to the original factory
setting.
Declaration of conformity
GRENDS GmbH hereby declares that the CK 2306
radio-controlled alarm clock complies with
Directives 2014/53/EU and 2011/65/EU.
The full text of the EU declaration of conformity is
available at the following Internet address:
www.ade-germany.de/doc
This declaration loses its validity if any
modification is made to the alarm clock that has
not been agreed with us in advance.
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CK 2306 DCF radio-controlled alarm clock