LG GR-B206GVQA User Manual download pdf (Page 106)

4.

HOW

TO

DEAL

WITH

CLAIMS

4-1.

Sound

TROUBLE

DIAGNOSIS

-106-

Problems

Checks

and

Measures

"Whizz"

sounds

Explain

general

principles

of

sounds.

?

All

refrigerator

when

functioning

properly

have

normal

operating

sound.

The

compressor

and

fan

produce

sounds.

There

is

a

fan

in

the

freezer

compartment

which blows

cool

air

to

freezer

and

refrigerator

compartments.

"Whizz"

sounds

are

heard

when

the

air

passes

through

the

narrow

holes

into

the

freezer

and

refrigerator

compartments.

Cooling

Fan

sound

in

the

compressor

compartment.

?

There

is

a

fan

on

the

back

of

the

refrigerator,

which

cools

the

compressor

compartment.

If

there

is

a

small

space

between

the

refrigerator

and

the

wall,

the

air

circulation

sounds

may

be

noticeable.

Noise

of

Compressor.

?

This

operating

sound

happens

when

the

compressor

compresses

the

refrigerant.

The

compressor

rotates

at

3600RPM.

The

sound

of

compressor

operation

becomes

louder

as

the

refrigerator

capacity

increases.

"Click"

sounds

Explain

the

principles

of

temperature

change.

?

The

sounds

happens

when

pipes

and

internal

evaporator

in

the

refrigerator

compartment

expand

and

contract

as

the

temperature

changes

during

the

refrigerator

operation.

This

sound

also

happens

during

defrosting,

twice

a

day,

when

the

ice

on

the

evaporator

melts.

"Clunk"

sound

Explain

that

it

comes

from

the

compressor

when

the

refrigerator

starts.

?

When

the

refrigerator

operates,

the

piston

and

motor

in

the

compressor

rotate

at

3600RPM.

This

sound

is

caused

by

the

vibration

of

motor

and

piston

when

they

start

and

finish

their

operation.

This

phenomena

can

be

compared

with

that

of

cars.

When

the

car

engine

ignites

and

starts

to

rotate,

the

loud

sound

becomes

gradually

quiet.

When

the

engine

stops,

it

stops

with

vibration.

Vibration

sound

Check

the

sound

whether

it

comes

from

the

pipes

vibration

and

friction.

?

Insert

rubber

or

leave

a

space

between

pipes

to

avoid

the

noise.

?

Fix

the

fan

blade

if

the

noise

is

due

to

the

collision

of

fan

and

shroud.

?

Fix

the

drip

tray

if

it

is

loosened.

Sound

depends

on

the

installation

location.

?

Sound

becomes

louder

if

the

refrigerator

is

installed

on a

wooden

floor

or

near

a

wooden

wall.

Move

it

to

the

another

location.

?

If

the

refrigerator

is

not

leveled

properly,

a

small

vibration

can

make

a

loud

sound.

Please

adjust

the

level

of

the

refrigerator.

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