Philips HD7451 - Инструкция по эксплуатации - Страница 9

Descaling

Regular descaling prolongs the life of the appliance and guarantees optimal brewing results and a 

constant brewing time for a long time.

In case of normal use (two full jugs of coffee ever y day), descale the appliance: 

 - 2 or 3 times a year if you use soft water (up to 18dH);

 - 4 or 5 times a year if you use hard water (over 18dH).

Contact your local water board for information about the water hardness in your area.

You can use white vinegar with 4% acetic acid or a liquid descaler to descale the coffeemaker.  

Note: If the appliance starts to produce more steam, this can be an indication that scale is building up.

Never use vinegar with an acetic acid content of 8% or more, natural vinegar, powder descalers 

or tablet descalers to descale the appliance, as this may cause damage.

Descaling takes approx. 30 to 60 minutes.

  1 

 Fill the water tank with one litre of white vinegar (4% acetic acid) (Fig. 16).

Note: Do not put a filter and ground coffee in the filter holder.
Note: You can also use an appropriate liquid descaler. In this case, follow the instructions on the package 

of the descaler.

  2 

 Press the on/off switch to switch on the appliance and let it complete the brewing cycle (see 

chapter ‘Using the appliance’) (Fig. 9).

  3 

 Empty the jug over a sink (Fig. 17).

Note: For extra through descaling and to make sure that there is no scale left in the appliance, repeat 

steps 1 to 3.

  4 

 Let the appliance complete two more brewing cycles with fresh cold water to remove any 

vinegar/descaler and scale residues (Fig. 18).

  5 

 Clean the jug and the filter holder (see chapter ‘Cleaning’). 

replacement

You can order a new jug from your local Philips dealer or a Philips ser vice centre under type 

number HD7989/20 (black) and HD7989/00 (grey).

Environment

 - Do not throw away the appliance with the normal household waste at the end of its life, but 

hand it in at an official collection point for recycling. By doing this, you help to preser ve the 

environment (Fig. 19).

guarantee and service

If you need ser vice or information or if you have a problem, please visit the Philips website at 

www.

philips.com 

or contact the Philips Consumer Care Centre in your countr y (you find its phone 

number in the worldwide guarantee leaflet). If there is no Consumer Care Centre in your countr y, 

go to your local Philips dealer. 

troubleshooting

This chapter summarises the most common problems you could encounter with the appliance. If 

you are unable to solve the problem with the information below, contact the Consumer Care 

Centre in your countr y. 

EnglisH

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