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11
Noises and alarms
11.1
Operating noise
The compressor and the cooling circuit make various noises while the appli-
ance is running.
Although the appliance is fitted with a quiet compressor and a noise-optimized
cooling circuit, some noises cannot be completely avoided. The volume of
these noises depends on the size of the appliance, how it is installed and the
cooling requirement (e.g. for Fast cooling). Operating noises are particularly
audible immediately after switching on the compressor; however, these noises
become quieter as the appliance runs.
Keyword
Cause
Remarks
Buzzing
Cooling unit
Normal operating noise made by the cool-
ing unit, volume depends on the size of
the appliance and the load-dependent
speed of the compressor motor.
Gurgling,
bubbling,
hissing
Cooling circuit
Normal operating noise caused by the
flow of refrigerant through the cold circuit.
Whirring
Fan
Normal operating noise caused by con-
vection cooling in the chill compartment.
Fizzling
Cooling circuit
Normal operating noise caused by the in-
jection of refrigerant into the evaporator.
Rattling
Glass shelves, bas-
kets, door trays,
contents, etc.
Arrange the parts in the interior so that
they are fixed in place and are not touch-
ing.
Creaking
Housing
Normal, temperature-dependent stress-
strain of the materials, e.g. plastics, insula-
tion.
Clicking
Valve
Normal switching noise of the switching
valve.
26
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