AEG SWS98820 User Instructions page 60

Description Cause
Droning Cooling system
Humming Fan
Gurgling Cooling circuit
Babbling
Murmuring
Hissing Cooling circuit
Cracking Cooler housing
60
Comment
Normal operating noise of the cooling
system. The level is dependent on
the size of cooler.
Normal operating noise of the fan.
Normal operating noise as coolant
flows through the circuit.
Normal operating noise as coolant is
injected into the condenser.
Normal as materials expand and
contract due to temperature variations
(e.g. plastics, insulation).