Philips HD 4390/91 manual Cleaning, Filterline scale filter with type HD 4391 only, Descaling

Do not fill with more than 1.7 litres of water (up to "MAX" indication).

Avoid overfilling to prevent boiling water being ejected from around the top of the kettle.

Switching on

-(Fig. 3) Place the kettle on the base unit, which is connected to a wall socket. (You can keep the base unit connected.)

-(Fig. 4) The appliance is switched on by setting the on/off switch into the "up" position. The pilot light will come on.

Switching off

-(Fig. 5a) When the water has boiled the appliance switches off automatically.

-(Fig. 5b) At any time you can switch the kettle off manually by setting the on/off switch into the "down" position.

Switching on again?

- If switched off automatically, first allow the built- in thermal safety switch 15-20 seconds to cool down.

Then you may switch on again.

During the cooling down time do not force the on/off switch into the "up" ("ON") position as this can damage the operating mechanism.

Cleaning

•Do not immerse in water.

•The kettle may be cleaned with a damp cloth. First remove the kettle from the base unit. The base unit can be cleaned in the same manner. First remove the mains plug from the wall socket.

•Soap or detergent can be used to remove troublesome stains. Do not use aggressive and abrasive cleaning agents.

Filterline scale filter (with type HD 4391 only)

To prevent loose particles of limescale being poured out into your beverage, your kettle is fitted with a scale filter.

The filter is removable to enable cleaning and replacement.

Limescale deposits

Limescale is a harmless deposit which is naturally formed when (more or less) hard water is heated. It can be found mostly adhered to the heating element.

The amount of limescale deposited (and

subsequently the need to clean or descale) largely depends on the water hardness in your area and the frequency with which the kettle is used. Limescale is not harmful to your health. But if poured into your beverage it can give a powdery taste to your drink.

The scale filter is designed to prevent these scale particles from being poured out by trapping them within the kettle.

Cleaning the scale filter

To avoid an excessive amount of limescale building up inside your kettle, it is important that both the kettle and filter are cleaned on a regular basis.

Scale can be removed from the filter by

-running it under a tap, whilst gently brushing with a soft nylon brush (fig. 6);

-or by soaking the filter in vinegar or a proprietary descaling agent.

•Before removing the filter (for replacement or cleaning):

-Ensure that the kettle is unplugged from the mains.

-Do not attempt to remove the filter when hot or when the kettle contains hot water.

•Never leave the filter loose inside the kettle. Ensure that the filter is always correctly placed between the two ribs.

-Slide the filter downwards until it clicks into position (fig. 7).

Periodically: descaling

In the course of time, a build-up of limescale may occur on the filter gauze, reducing the filling (via the spout) and pouring performance of the kettle. Limescale adhered to the heating element will reduce the heating capacity.

Therefore, the kettle with the filter in place, should be descaled periodically as indicated in section "Descaling".

Replacement filters

Replacement filters can be obtained under type nr. HD 4961 from your Philips dealer.

Scale filters can also be applied with kettles type HD 4390 if provided with locating ribs (see fig. 7).

Descaling

Descale the kettle regularly. With normal use: at least twice a year.

-Boil 700 ml of water in the kettle.

-Switch off and unplug from the electrical supply.

-Add 300 ml of ordinary vinegar to the water in

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