Cleaning
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CK 2113 | CK 2308 XL radio-controlled wall clock
Cleaning
NOTE on material damage
− Do not immerse the clock in water or other liquids.
− Never use harsh, scouring or abrasive cleaning agents or the like to
clean the clock. Otherwise, the surface could be scratched.
− Dust the clock if necessary with a soft, dry cloth.
The glass can also be cleaned with commercially available glass cleaners.
Fault/Remedy
Fault Possible cause
The DCF77 signal for the time
cannot be received.
Check the chosen location.
Start the signal reception manually,
if necessary.
Adjust the time manually.
Temperature indication appears
too high.
Check if the clock is exposed to direct
sunlight.
The indicator is illegible, the
function is unclear, or the values
are obviously false.
Reset the clock to defaults.
The time differs exactly by one or
two etc. hours.
You have probably set an incorrect time
zone.
The display shows “HH” or “LL”
instead of measured temperature
values.
The values lie above or below the
measurement range.
Humidity indication “19% RH” or
“96% RH” appears permanently on
the display.
The values lie above or below the
measurement range.
The alarm clock didn't ring. Did you activate the correct alarm time?
Check whether the wake-up day and
setting (“M-F”, “S-S” or “M-S”) match.
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