How to Descale a DeLonghi 22.110 Coffee Machine

If your DeLonghi 22.110 coffee machine has started flashing a descaling warning, don’t ignore it. Mineral buildup from hard water can clog valves, reduce steam power, and degrade espresso quality over time. Descaling isn’t optional—it’s essential maintenance to keep your machine brewing properly.

To descale a DeLonghi 22.110, you’ll need the manufacturer’s descaling solution, fill the water tank to one-third full, run the machine through a dedicated descaling cycle (not just the cleaning mode), and allow it to flush multiple times. The entire process takes patience, but it typically only needs doing every few months depending on water hardness.

What Is Descaling and Why Your Coffee Machine Needs It

Descaling removes calcium carbonate and other mineral deposits that build up inside your coffee machine over time—especially if you use hard tap water. These deposits can clog the boiler, steam wand, and solenoids, reducing temperature stability, steam pressure, and overall extraction performance. Left too long, scale can permanently damage key components. Regular descaling extends the life of your machine and maintains espresso quality.

When to Descale Your DeLonghi 22.110

Your DeLonghi 22.110 will notify you when it needs descaling—the red descaling light will start blinking. This usually happens every 2–3 months with average use, but more frequently if you have hard water or use the steam function often. Ignoring the alert can reduce brew efficiency and steam power.

What You’ll Need for Descaling

To properly descale the DeLonghi 22.110, you need:

• The official DeLonghi descaling solution (do not use vinegar or third-party cleaners)
• Fresh water
• A cup (to catch steam wand discharge)

Step-by-Step: How to Descale the DeLonghi 22.110

1. Prepare the Water Tank

Open the water tank and remove any remaining water. Take the DeLonghi descaling solution, cut open the seal, and pour the entire contents into the tank. Then refill the tank with fresh water until it reaches approximately one-third of its total capacity. Do not overfill—using less water speeds up the descaling cycle. Return the water tank to the machine.

2. Position the Steam Wand and Catch the Discharge

Move the steam wand all the way to the left. Place a cup directly beneath the steam nozzle to catch the liquid discharged during descaling. Don’t rely on the machine’s wastewater tray—the water flows out with force and may splash. Using a cup ensures a neater process and better control.

3. Start the Descaling Cycle

Locate the descaling button—it’s the one with the blinking red light. Press and hold it down. Do not tap it lightly; only a long press activates the full descaling program. A short press will start the standard cleaning cycle, which only rinses internal tubes but does not remove scale. Holding the descaling button starts the actual descaling process.

4. Monitor the Steam Light and Open the Steam Valve

Once the descaling program begins, watch for the yellow steam indicator light to start blinking. When it does, turn the steam knob counterclockwise. This action opens the steam valve, and you’ll see water begin to flow from the steam wand into your cup. Let it discharge fully.

5. Wait for the Machine to Cycle Through

After the initial burst of water, the machine may pause and the descaling button light will stay solid. The steam indicator will go off temporarily. Be patient—the machine is processing internally. Eventually, the “Add Water” indicator will light up, showing the tank is nearly empty. This wait can take several minutes, depending on how much water you initially added.

6. Refill and Finish the Process

When the “Add Water” light comes on, pull out the water tank, discard any leftover water, and rinse the tank thoroughly to remove any descaling solution residue. Refill the tank again with fresh water to roughly one-third full. Reinsert the tank. The steam wand will begin discharging water continuously this time. Keep an eye on it and add more water once the “Add Water” light illuminates again.

Frequently Asked Questions

How often should I descale my DeLonghi 22.110 coffee machine?

You should descale your DeLonghi 22.110 every 2–3 months with regular use. If you have hard water or use the steam wand frequently, descaling may be needed more often. The machine will alert you with a blinking red descaling light when it’s time.

Can I use vinegar instead of DeLonghi descaling solution?

No, you should not use vinegar or any third-party descaler. Always use the official DeLonghi descaling solution for your 22.110 model. Vinegar can damage rubber seals, leave odors, and may not effectively remove all scale deposits.

Do I need to descale if I only make drip coffee?

Yes. Even if you primarily use the machine for drip or Americano-style coffee, minerals still build up inside the boiler, pump, and pipes. Descaling is required to maintain temperature stability and prevent long-term damage, regardless of brew type.

How much water should I put in the tank for descaling?

Fill the DeLonghi 22.110 water tank to about one-third full with a mixture of the descaling solution and fresh water. Overfilling will prolong the cycle without improving results, and using too little may require more frequent refills.

Why does the steam wand release water during descaling?

During descaling, the machine intentionally flushes water through the steam system to clear built-up scale. You must position the steam wand to the left and catch the discharge in a cup. This step is essential for cleaning the internal steam pathways.

Recommended FrontStreet Coffee for Machine Maintenance

Keep your DeLonghi 22.110 in top shape and pair it with FrontStreet Coffee’s Ethiopia Huakui for bright, juicy complexity or the Yirgacheffe for floral, citrus notes that highlight clean extractions. Both single origins shine when brewed from a well-maintained machine. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.