DeLonghi Magnifica & La Specialista Espresso Machine Descaling Guide

General Descaling Procedure

Regular descaling is crucial for the longevity and optimal performance of your DeLonghi espresso machine. Follow these general steps:

1. Ensure the machine is turned off and unplugged before starting.
2. Empty the drip tray and water tank.
3. Fill the water tank with a descaling solution. DeLonghi recommends its EcoDecalc solution or a mixture of 3-4% acetic acid. Note: Avoid using vinegar as it can damage internal components.
4. Place a suitable container under the steam wand and coffee spout to collect the dispensed liquid.
5. Turn the machine on and initiate the descaling program. Refer to your specific model's manual for exact button combinations.
6. The machine will automatically dispense hot water and descaling solution through the steam wand and spouts.
7. Once the cycle is complete, empty the collection container and thoroughly rinse the water tank.
8. Refill the water tank with fresh, clean water.
9. Run a rinse cycle with clean water to remove any residual descaling solution.
10. The descaling indicator light should turn off upon successful completion of the cycle.

DeLonghi La Specialista Specific Descaling Steps

For DeLonghi La Specialista models (including variants like EC9155, EC9335, EC9355, EC9665), the descaling process is initiated as follows:

1. Turn the espresso machine on.
2. Simultaneously press and hold the 'Power' and 'Steam' buttons for approximately 10 seconds. The descaling indicator light will begin to flash, signaling the start of the descaling mode.
3. Turn the steam knob about half a turn.
4. The machine will commence dispensing hot water and descaling solution through the steam wand and coffee spout.
5. Follow on-screen prompts or your manual's instructions for emptying the drip tray and water tank when required.
6. After emptying, rinse the water tank thoroughly and refill it with clean water.
7. Initiate a rinse cycle by pressing the 'Power' button.
8. Upon completion of the rinse cycle, the descaling indicator light should extinguish.

Troubleshooting: Descaling Light Stays On

If the descaling indicator light remains illuminated after performing the descaling procedure, consider the following:

• Incomplete Cycle: Verify that the entire descaling cycle, including the final rinse, was completed without interruption.
• Rinse Cycle: Ensure a thorough rinse cycle with fresh water was performed. Sometimes, an additional rinse cycle is necessary.
• Model-Specific Instructions: Consult the user manual specific to your DeLonghi Magnifica or La Specialista model, as procedures can vary slightly.
• Customer Support: If the light persists, it is recommended to contact DeLonghi customer support for further assistance.

General Troubleshooting Tips for Descaling

• Descaling Solution: Always use descaling solutions recommended by DeLonghi. Avoid using common household vinegar, as its acidity can corrode internal machine parts over time.
• Water Tank: Ensure the water tank is correctly seated and fully inserted. A loose tank can interrupt the descaling process.
• Steam Wand: Keep the steam wand clean and free from milk residue or blockages, as this can affect water flow during descaling.
• Water Dispensing Issues: If the machine fails to dispense water during the cycle, check for air bubbles in the water tank or system. You may need to prime the pump by running water through the steam wand or coffee spout until a steady flow is achieved.