Bosch NIT8053UC Use & Care Manual - Page 21

21

.Depending

on

the

type

of

countertop,

a

small,

uneven

gap

may

form

between

the

countertop

and

the

cooktop.

For

this

reason,

there

is

a

flexible

seal

all

the

way

around

the

cooktop.

Due

to

the

characteristics

of

the

material,

there

can

be

irregularities

in

the

glass

ceramic

surface.

Because

of

the

mirrorĆsmooth

surface

of

the

cooktop,

it

is

possible

for

even

the

smallest

of

bubbles,

less

than

1±mm

in

diameter,

to

be

visible.

They

are

not

detrimental

either

to

the

functionality

or

the

durability

of

the

glass

ceramic

cooking

surface.

Induction

heating

technology

is

based

on

the

vibration

resistance

of

certain

metals

when

subjected

to

highĆfrequency

waves.

In

some

circumstances,

these

vibrations

can

create

certain

sounds,

such

as

the

following:

This

occurs

when

cooking

at

a

high

power.

The

cause

of

this

is

the

amount

of

energy

which

is

transmitted

from

the

appliance

to

the

cookware.

This

sound

disappears

or

becomes

quieter

when

the

power

is

turned

down.

This

occurs

when

the

cookware

is

empty.

This

sound

disappears

when

water

or

food

is

added

to

the

cookware.

This

sound

occurs

when

cookware

is

used

which

consists

of

layers

of

different

materials.

The

noise

is

caused

by

vibrations

in

the

joint

faces

between

the

different

layers.

It

may

change

depending

on

the

amount

and

type

of

food

being

cooked.

This

noise

occurs

principally

in

cookware

which

consists

of

layers

of

different

materials

when

it

is

used

at

the

highest

heat

setting

and

on

two

elements

next

to

each

other.

This

whistling

disappears

or

becomes

quieter

when

the

power

is

turned

down.

The

electronics

require

a

controlled

temperature

in

order

to

function

reliably.

The

cooktop

is

therefore

fitted

with

a

fan

which

runs

at

various

speeds

according

to

the

temperature

detected.

The

fan

may

also

continue

to

run

even

after

the

cooktop

has

been

switched

off

if

the

temperature

it

detects

is

still

too

high.

The

sounds

described

are

a

normal

part

of

induction

technology

and

do

not

indicate

a

defect.

Normal

operating

sounds

for

the

appliance

Low

humming

like

a

transformer

Quiet

whistling

Crackling

HighĆpitched

whistle

Fan

noise

Bosch NIT8053UC Use & Care Manual - Page 21

Normal, operating, sounds, appliance

Page 21 highlights