DeLonghi BAR42 Owner Manual - Page 9

DESCALING

It

is

advisable

to

clean

the

calcium

from

the

machine

every

300

cups

of

coffee.

It

is

recommended

that

specific

(store-bought)

products

for

descaling

of

espresso

coffee

machines

be

used.

If

such

products

are

not

available,

it

is

possible

to

proceed

as

follows:

1

.Fill

the

tank

with

water

using

1

liter

of

water;

2.

Dissolve

2

spoonfuls

(about

30

grams)

of

citric

acid

in

the

water

(available

from

chemists);

3,Turn

the

selector

knob

to

the

-W-

position

and

wait

until

the

`OK'

light

comes

on.

4.Check

that

the

filter

holder

is

not

attached

and

place

a

container

under

the

outlet

of

the

machine;

5.Turn

the

selector

knob

to

the

6

position

and

al

low

half

of

the

solution

in

the

tank

to

flow

out.

Then

stop

the

flow

by

turning

the

selector

to

the

"O"

position.

6.Allow

the

solution

to

act

for

about

15

minutes,

then

start

up

the

flow

again

until

the

tank

is

completely

empty;

7.To

eliminate

the

remains

of

the

solution

and

the

calcium,

rinse

the

tank

well,

fill

it

with

clean

water

and

replace.

8.Turn

the

selector

knob

to

the

4

position

and

allow

all

of

the

remaining

solution

in

the

tank

to

flow

out.

9.

Turn

the

selector

knob

to

the

-400-

position

and

repeat

operations

7

and

8

one

more

time.

Repairs

for

malFunctioning

caused

by

problems

of

calcium

build-up

are

not

covered

by

the

guarantee

if

the

descaling

process

described

above

is

not

carried

out

regularly,

11

DeLonghi BAR42 Owner Manual - Page 9

recommended

Page 9 highlights