LG LSSB2791ST - Manual (Page 41)

Care and maintenance
41
NOISE
The defrost control will click when
the automatic defrost cycle begins
and ends. The thermostat control
(or refrigerator control on some
models) will also click when
cycling on and off. Normal Operation Clicking
Rattling noises may come from the
flow of refrigerant, the water line on
the back of the unit, or items stored
on top of or around the refrigerator.
Refrigerator is not resting solidly on
the floor.
Refrigerator with linear compressor
was jarred while running.
Normal Operation
Floor is weak or uneven or leveling legs need to
be adjusted. See the Door Alignment section.
Normal Operation
Rattling
Evaporator fan motor is circulating
air through the refrigerator and
freezer compartments.
Air is being forced over the
condenser by the condenser fan.
Normal Operation
Normal Operation
Whooshing
Refrigerant flowing through the
cooling system. Normal Operation Gurgling
Contraction and expansion of the
inside walls due to changes in
temperature. Normal Operation Popping
Water dripping on the defrost
heater during a defrost cycle. Normal Operation Sizzling
Problem Possible Causes Solutions