Complete Descaling Guide for Delonghi Magnifica S (For Filter Users)
~45 min
Hard
Created on August 08, 2025
86 views
Compatible Machines
De'Longhi Magnifica S
Related Links
Routine Overview
A 45-minute routine for completely removing limescale from inside the machine.
Includes detailed guidance for water softener filter users.
Includes detailed guidance for water softener filter users.
Execute immediately when the descaling indicator lights up.
Neglecting descaling can damage the boiler and cause malfunction.
This is an AI-compiled routine. Please share your experiences and suggestions in the comments!
Routine Steps
Progress
%{completed}/%{total} completed (%{percentage}%)
1. Preparation
Prepare Delonghi's official descaler (EcoDecalk).
Prepare a container with 2+ liter capacity.
Empty and reinstall the drip tray and grounds container.
Prepare a container with 2+ liter capacity.
Empty and reinstall the drip tray and grounds container.
Using third-party products may void warranty.
2. Remove Water Softener Filter
Remove and completely empty the water tank.
If present, remove the filter (turn counterclockwise to remove).
If present, remove the filter (turn counterclockwise to remove).
Descaler will damage the filter if not removed!
3. Prepare Descaling Solution
Pour 3.4fl oz (100ml) descaler into the water tank up to level A mark.
Add 1 liter of clean water up to level B mark.
Reinstall water tank in machine.
Add 1 liter of clean water up to level B mark.
Reinstall water tank in machine.
Exact proportions are crucial. Don't estimate!
4. Position Container
Place a 2-liter container under both
the cappuccino maker and coffee spouts.
the cappuccino maker and coffee spouts.
Large container required as solution flows from both outlets!
5. Start Descaling
Wait for machine to reach ready state.
Press and hold descale button for 5+ seconds.
Program starts when button light illuminates.
Press and hold descale button for 5+ seconds.
Program starts when button light illuminates.
6. Steam Dial Operation
When steam light flashes, turn steam dial to I position.
Descaler will automatically discharge and pause repeatedly.
Descaler will automatically discharge and pause repeatedly.
Never touch the hot acidic solution!
7. Complete First Cycle (approx. 25 min)
When water tank light flashes, turn steam dial to 0.
Discard descaling solution from container.
Remove and thoroughly rinse water tank.
Discard descaling solution from container.
Remove and thoroughly rinse water tank.
8. First Rinse Cycle
Fill water tank with clean water to MAX level.
Place empty container under spouts again.
Turn steam dial to I position to begin rinsing.
Place empty container under spouts again.
Turn steam dial to I position to begin rinsing.
9. Second Rinse Cycle
Refill empty water tank to MAX level.
When steam light flashes, turn dial to I.
Water will only flow from cappuccino maker.
When steam light flashes, turn dial to I.
Water will only flow from cappuccino maker.
10. Final Steps
Turn steam dial to 0 when rinsing completes.
Reinstall water softener filter.
Fill water tank to MAX and install in machine.
Reinstall water softener filter.
Fill water tank to MAX and install in machine.
Water in drip tray is normal.
11. Operation Test
Brew one cup of coffee to verify normal operation.
Discard first cup, drink from second cup onward.
Discard first cup, drink from second cup onward.
Machine may request third rinse if needed.
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