LG LFD20786 Owner's Manual page 38

NOISE
Problem
The defrost control will click when the
automatic defrost cycle begins and ends.
Clicking
The thermostat control (or refrigerator
control on some models) will also click
when cycling on and off.
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
Rattling
floor.
Refrigerator with linear compressor was
jarred while running.
Evaporator fan motor is circulating air
through the refrigerator and freezer
compartments.
Whooshing
Air is being forced over the condenser by
the condenser fan.
Refrigerant flowing through the cooling
Gurgling
system.
Contraction and expansion of the inside
Popping
walls due to changes in temperature.
Water dripping on the defrost heater
Sizzling
during a defrost cycle.
If the side or back of the refrigerator is
touching a cabinet or wall, some of the
Vibrating
normal vibrations may make an audible
sound.
Water running into the drain pan during
Dripping
the defrost cycle.
Your refrigerator is designed to run
more efficiently to keep your food items
at the desired temperature. The high
efficiency compressor may cause your
Pulsating or High-
new refrigerator to run longer than
Pitched Sound
your old one, but it is still more energy
efficient than previous models. While
the refrigerator is running, it is normal to
hear a pulsating or high-pitched sound.
TROUBLESHOOTING GUIDE
Possible Causes
37
Solutions
Normal Operation
Normal Operation
Floor is weak or uneven or leveling legs need to
be adjusted. See the Door Alignment section.
Normal Operation
Normal Operation
Normal Operation
Normal Operation
Normal Operation
Normal Operation
To eliminate the noise, make sure that the sides
and back cannot vibrate against any wall or
cabinet.
Normal Operation
Normal Operation