8 Noises and alarms
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Noises and alarms
8.1
Operating noise
The appliance can make various noises during operation. Although the appliance is
noise-optimized, some noise cannot be eliminated completely. This noise depends on
the size of the appliance, how it is installed and the cooling requirements (e.g. fast cool-
ing), the ambient temperature and the installation conditions. Operating noises are partic-
ularly audible immediately after switching on the compressor; however, these noises be-
come quieter as the appliance runs.
Unusual noises are often caused by improper installation. The appliance must be in-
stalled on a level and stable surface. In open kitchens or in the case of appliances in-
stalled in partitioned areas, normal operating noises may seem louder. This is not a fault
but rather an effect of the design/architecture.
Keyword
Cause
Remarks
Buzzing
Cooling aggregate
Normal operating noise of the cooling aggreg-
ate; level depends on the size of the appliance.
Gurgling, bub-
bling, hissing
Cooling circuit
Normal operating noise as refrigerant flows
through the cooling circuit.
Humming
Fan
Normal operating noise of forced air cooling.
Humming
Air flap
Operating noise of the air flap.
Hissing
Cooling circuit
Normal operating noise as refrigerant is injected
into the evaporator.
Clinking
Load, etc.
Arrange the bottles so that they do not touch.
Creaking
Housing
Normal, temperature-dependent stress-strain of
the materials, e.g. plastics, insulation.
Cracking
Housing
Ice cracking as it defrosts.
8.2
Warning signal and alarm
An acoustic signal is emitted to alert the user to a problem in the following instances:
▪
If the appliance door is left open for longer than 5 minutes.
▪
If the cooling temperature rises 10 °C above the set temperature.
▸ Press any button to quit the alarm.
▸ Close the appliance door if necessary.
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