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Description Cause Comment
Droning Cooling aggregate Normal operating noise of the cooling aggregate.
The level is dependent on the size of cooler
Humming Fan Normal operating noise of the fan
Gurgling Cooling circuit Normal operating noise as coolant flows through
Babbling the circuit
Murmuring
Hissing Cooling circuit Normal operating noise as coolant is injected into
the condenser
Clicking Thermostat Normal switching sound of the electromechanical
temperature controller
Rattling Shelves, baskets, Position the interior parts so that they don’t touch one
fitted holders, refri- another, or so that they are fitted securely.
gerator contents etc.
Cracking Cooler housing Normal as materials expand and contract due
to temperature variations (e.g. plastics, insulation)
Operating noises
Noises which are totally normal
The refrigerator is cooled by a compressor
(cooling aggregate). The compressor
pumps coolant through the cooling
system, and this produces noise. Even
when the compressor cuts out, noises
caused by temperature and pressure
variations are unavoidable.
This cooler is fitted with a quiet compres-
sor and low-noise cooling circuit in accor-
dance with the latest state of technology.
However, certain noises are unavoidable
and their intensity depends on the size of
the cooler.
Operating noises are most audible imme-
diately after the compressor cuts in. They
become quieter as the operating period
continues.
Noises which are not normal
Most unusual noises are caused by impro-
per installation. The cooler must be instal-
led or built-in so that it is level and stable.
Under no circumstances should pipes be
in contact with a wall, other furniture or
one another.
Where coolers are built in to open-plan
kitchens or partition walls, normal opera-
ting noises will be more audible. However,
this is due to the surrounding architecture
and not to any fault with the cooler.
Umbruch_IK513-032.qxd 24.11.2006 9:58 Uhr Seite 32
