Descaling The Coffeemaker - Philips HD7751 User Manual

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7 Close the lid of the coffee bean chute and turn the lock to the
'locked' position.
8 Remove the paper filter with the ground coffee residues and throw
it away.

Descaling the coffeemaker

When the message 'CALC' appears on the display (after approx. 60
brewing processes), you need to descale the coffeemaker, as scale can clog
the coffeemaker.
Regular descaling prolongs the life of the appliance and guarantees optimal
brewing results and a constant brewing time for a long time. Descale the
appliance:
- every 120 brewing cycles if you use soft water (up to 18dH).
- every 60 brewing cycles if you use hard water (over 18dH).
You can contact your local water board for information about the water
hardness in your area.
Note: If you are not aware of the water hardness in your area and are not
in a position to contact your local water board, we advise you to descale the
appliance every time the 'CALC' message appears on the display.
Note: To remove the 'CALC' message from the display, press the 2-10 CUPS
button and the STRENGTH button simultaneously.
1 Open the water reservoir lid.
2 Fill the water reservoir with 7 cups of white vinegar (4% acetic acid)
and 3 cups of water.
3 Place a paper filter (no. 4) in the filter basket and close the filter
basket holder.
4 Place the empty jug on the hotplate.
5 Put the mains plug in the wall socket.
6 Set the on/off switch on the back of the appliance to 'I' to switch on
the appliance.
The start/standby button and the display lights up.
,
7 Press the start/standby button.
8 Press the 'grinder off' button to switch off the grinder. Then and
press the start/standby button to start the brewing process.
9 Wait until half of the vinegar-water solution has flowed into the jug.
Then press the start/standby button to stop the brewing process and
let the solution soak for at least 15 minutes.