Bedienungsanleitung Liebherr IRd 3900 (Seite 21 von 24) (Englisch)

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Lighting

Class1Light source

This product contains one or more energy

efficiency class F light sources.

LED

1 The appliance may contain light sources with different

energy efficiency classes. The lowest energy efficiency class

is indicated.

9.2 Operating noises

The appliance makes different noises when it is on.

-At higher temperatures the appliance uses less energy

but works for longer. It is quieter.

-At lower temperatures the food is cooled faster. It is

louder.

Examples:

•Functions on (see 6.3 Functions)

•Fan running*

•Food recently added

•High ambient temperature

•Door open for a while

Noise Possible cause Type of noise

Bubbling and

splashing

Coolant flowing

into the cooling

circuit.

Normal operating

noise

Hissing Coolant sprays

into the cooling

circuit.

Normal operating

noise

Humming The appliance

is cooling. The

volume depends

on the cooling

output.

Normal operating

noise

Suction noises Soft-closing door

is being opened

and closed.

Normal operating

noise

Noise Possible cause Type of noise

Humming and

rustling*

The fan is

running.*

Normal operating

noise*

Clicking Components are

switched on and

off.

Normal switching

noise

Rattling or

humming

Valves or flaps are

working.

Normal switching

noise

Noise Possible

cause

Type of noise Lifting

Vibration Improper

installation

Defective

noise

Check the

installation.

Level the

appliance.

Rattling Components,

items inside

the appliance

Defective

noise

Secure

components.

Leave

enough

space

between the

items.

9.3 Technical fault

Your appliance is designed and built to ensure it works reli‐

ably and has a long service life. In the unlikely event that

a fault occurs during operation, please check whether it is

due to an operating error. If so, you will be charged for the

callout and repair costs even if it falls within the warranty

period.

You can fix the following faults yourself.

9.3.1 Appliance function

Defect Cause Remedy

The appliance is

not working.

→ The appliance is not switched on. uSwitch the appliance on.

→The power plug is not properly

plugged into the socket.

uCheck the power plug.

→There is something wrong with the

power outlet fuse.

uCheck the fuse.

→ Power cut uKeep the appliance closed.

uProtecting food: Lay freezer packs on top of the food or

use another freezer if the power is off for a prolonged

period.

uDo not re-freeze defrosted food,

→The appliance plug does not fit the

appliance properly.

uCheck the appliance plug.

Temperature is not

cold enough.

→The appliance door is not closed

properly.

uClose the appliance door.

→ Not enough ventilation. uKeep ventilation grille clear, and clean it.

→The ambient temperature is too

high.

uSolution: (see 1.4 Appliance range of use) .

Customer help

* Depending on model and options 21

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Liebherr IRd 3900 Seite 21

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