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9 Noises and warnings
Noise
Cause
Remark
Buzzing
Compressor or fan
Normal operating noise made by the cooling
unit.
Gurgling, bub-
bling, hissing
Cooling circuit
Normal operating noise as refrigerant flows
through the cooling circuit.
Hissing
Cooling circuit
Normal operating noise as refrigerant is injected
into the evaporator.
Rattling
Shelves, contents, etc. Arrange the parts in the interior so that they are
fixed in place and not touching.
Creaking
Housing
Normal, temperature-dependent stress-strain of
the materials, e.g. plastics, insulation.
Buzzing,
knocking
Valve
Normal switching noise caused by the switching
valve.
9.2
Warning signal and alarm
If the appliance door remains open for a time, the following warning is given:
Time
Warnings
After 3 minutes
The LEDs flash with the intensity of the brightness gradually increas-
ing and decreasing.
After 5 minutes
The LEDs flash and an acoustic signal is emitted.
Press any button or close the appliance door to confirm the warning. After confirming the
warning, if the appliance door remains open then another warning is given. After confirm-
ing 3×, no further warning is triggered. The display shows the A1 error message.
▸ Further information: Trouble-shooting (see page 22)
Note on when the temperature value is raised
If a temperature value (actual value) is 8 °C above the selected set value for more than
3 hours, an acoustic signal is emitted for a limited time. The relevant zone and the zone
temperature flash in the display.
Confirming/Acknowledging warnings
▸ Touch any button.
▸ Further information: Trouble-shooting (see page 22)
When the Sabbath mode
is activated, there are no visual or acoustic warning
signals.
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