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Descale the machine: De'Longhi Specialista Arte

Before you start

Time
About 40 minutes
Tools
container of about 2 litres
Supplies
De'Longhi descaler (one 100 ml pack (to mark A), topped up with 1 litre of water (to mark B))

Warnings

The machine tells you when

This machine keeps count itself and tells you when this job is due, so follow the machine rather than a calendar.

What you see
descale light (B3) comes on red
Shown as
A light
What it counts
Water, against the hardness it is set to
Depends on
water hardness setting (levels 1-3, from the supplied Total Hardness Test strip)

Source: De'Longhi EC915X (La Specialista Arte) coffee maker instructions for use, US (EN/FR/ES)

Steps

  1. Pour the descaler into the tank up to the A mark moulded inside it, which equals one 100 ml pack.

    From the manual: “Pour the descaler (C6) into the tank up to the level A marked inside the tank (A7)”

  2. Add 1 litre of water up to the B mark and put the tank back in the machine.

    From the manual: “Add water (1 liter) up”

  3. Turn the mode selector dial to the descale position; the OK light turns orange and the descale light flashes.

    From the manual: “the OK light turns to orange and the descaling light flashes.”

  4. Make sure the portafilter is off, and put a container (2 litres) under the brewing unit, hot water spout and steam wand.

    From the manual: “not attached and position a container under the brewing unit (A10), hot water spout (A11) and steam wand (A9).”

  5. Hold OK for at least 3 seconds; its light starts flashing and descaling begins.

    From the manual: “Keep pressed for at least 3 seconds the OK (B6) button: the OK light begins to flash; descaling starts.”

  6. Let the programme run: descaler comes out of the wand and brewing unit in bursts and pauses until the tank is empty.

    From the manual: “comes out of the steam wand and brewing unit.”

  7. When delivery stops and the OK light turns white, the rinse is next.

    From the manual: “Delivery stops and the OK light turns to white.”

  8. Empty the container and put it back empty.

    From the manual: “to collect the descaler solution and replace it empty.”

  9. Take out the tank, pour away any descaler left, rinse it, fill with fresh water to MAX and refit it.

    From the manual: “empty any residues of descaler solution, rinse with running water and fill with fresh water up to the MAX level.”

  10. Put the container under the brewing unit, hot water spout and steam wand again.

    From the manual: “Position a container”

  11. Press OK to start the rinse.

    From the manual: “Press the OK button: under the brewing unit, rinsing starts.”

  12. Wait until delivery stops and the machine readies itself for use.

    From the manual: “When rinsing is complete, delivery stops and the appliance prepares to be used again:”

  13. Empty the container of rinse water.

    From the manual: “Empty the container used to collect the rinse water.”

  14. Take out and empty the drip tray, then refit it.

    From the manual: “Remove and empty the”

  15. Empty and rinse the tank, fill it with fresh water and refit it.

    From the manual: “Empty, rinse, then fill the”

Sources

Researched on .

Published: the sentence is on the maker’s own page or in the maker’s own document.

Applies to