The need for regular maintenance of the coffee machine
Coffee machines series Delonghi Magnifica They are deservedly considered one of the most reliable representatives of the household class, but hard water poses a serious threat to their durability. Over time, mineral salts of calcium and magnesium settle on the inner walls of the thermoblock, boiler and pipes, forming a hard coating known as scale. This process is inevitable if you use tap water without prior filtration or softening.
Ignoring the problem leads to heating element begins to work with overload, consuming more electricity, but heating the water worse. Ultimately, this can cause the failure of expensive components or the complete blocking of the device by the security system. Regular decalcification is not just a recommendation, but a mandatory procedure to maintain the quality of your espresso.
Timely removal of deposits allows you to maintain the ideal brewing temperature, which directly affects the development of the taste of the coffee bean. Plus, clean hydraulic paths provide the consistent pump pressure needed to create a thick, creamy foam.
⚠️ Attention: Modern models Magnifica equipped with a scale indicator that lights up automatically. However, the frequency of its occurrence depends on the hardness of the water in your area and the volume of cups prepared.
Symptoms of contamination and choice of remedy
Understand what your coffee machine urgently needs decalcification, it is possible not only by the burning indicator, but also by a number of indirect signs. First of all, pay attention to the preparation time of the drink: if the process previously took 20 seconds, but now it takes longer, it means that the permeability of the tubes is reduced. The sound of the pump may also change - it becomes more strained and louder.
It is important to choose the right chemical composition for washing. Manufacturer DeLonghi strongly recommends using original fluids such as EcoDecalk, since they have optimal acidity. The use of aggressive acids, such as pure acetic or citric acid, can damage rubber seals and plastic elements of the internal system.
- 📉 Reducing the pressure of the steam jet when the cappuccino maker is operating.
- 🌡️ Reducing the temperature of the finished drink or the appearance of a metallic taste.
- 🔊 The appearance of extraneous noise, crackling or buzzing during heating.
- ⏱️ Increased preparation time for one serving of espresso.
If you are using a water softener filter (cartridge DLS or DLSC), which is installed in the tank, the frequency of procedures is significantly reduced. In this case, the machine itself monitors the cartridge resource. However, even with a filter, periodic washing is necessary, since no filter provides 100% guarantee of protection against all types of salts.
Preparing for the cleaning procedure
Before starting the process, you need to make sure that there is no old liquid left in the water tank. Drain off the residue and rinse the tank with clean water. You will need about 1.7-2 liters of solution for the procedure, so make sure you have enough decalcifier.
Prepare a container with a volume of at least 1.5 liters to drain the waste liquid. Drip tray for most models Magnifica too small to hold the entire volume of rinsing water, so it will have to be emptied several times, interrupting the cycle. It is better to immediately place a large bowl under the hot water spout and the cappuccino maker.
Make sure the steam/water rotary switch is in the "closed" position before starting the program if your model requires it. In some modifications, such as Magnifica S or ESAM, it is necessary to remove the cappuccino maker to direct the flow of liquid directly into the container.
Step-by-step instructions: starting the cleaning mode
Cleaning process for coffee machines DeLonghi fully automated, but requires your constant presence. The machine will alternate between supplying the solution and pauses necessary for the chemical reaction with the scale. Do not try to speed up the process or turn off the device before the cycle is complete.
First, pour descaling agent into the water tank and add clean water to the maximum level. MAX. Stir the liquid by gently shaking the tank. Reinstall the tank. Next, you need to transfer the car to the service menu. This is done differently on different models: usually you need to hold down the steam and espresso buttons at the same time, or hold the steam button for more than 5 seconds until the indicators flash.
☑️ Ready for decalcification
After entering service mode, turn the steam dial to the steam position (or press the hot water button, depending on the model). The machine will begin pumping the solution through the system. The liquid will flow intermittently: there will be a flow for a few seconds, then a pause. The whole process takes about 20–30 minutes.
⚠️ Attention: During pauses in operation, the coffee machine may make sounds of air suction or gurgling. This is normal - the system flushes the internal circuits.
When the tank is empty, the machine will give a signal (flashing indicators or an audible beep). This completes the first stage. You need to rinse the tank thoroughly with water, fill it with clean cold water and put it back in place.
Flushing the system with clean water
The second step is critical to removing residual acid and dissolved scale from the hydraulic system. If you skip this step or do it carelessly, your drink may taste chemically. The machine will continue to operate in the same mode, pumping clean water through all components.
Turn the steam control again (or press the button) to start the rinse cycle. The liquid will drain into the same container. Please note that the output water may be cloudy or have a whitish tint - this is due to the removal of residual mineral deposits.
What should I do if the indicator does not go out after washing?
If the scale indicator remains on after completing a full cycle (solution + water), there may be air remaining in the system or the cycle may have been interrupted. Try running the rinse mode with clean water one more time without adding chemicals. In rare cases, it is necessary to reset the counter through the service menu.
Once the clean water tank is empty, the coffee machine will return to standby mode. The scale indicator should go out. Now you can brew a few cups of coffee “dry” (without grain, just pouring water) to finally make sure the system is clean.
Do not forget to wipe the external parts of the machine and the cappuccino maker, as the solution may have splashed on them during the process. Pay special attention to the steam spout - salt crystals often remain on it, which must be carefully removed with a damp cloth.
Table of error codes and indicators
During or immediately after service, the user may encounter various combinations of flashing lights. Understanding their meaning will help you avoid panic and react correctly to the state of the device.
| Indicator/Symbol | Flashing Status | Possible reason | Action |
|---|---|---|---|
| Red triangle | Flashes quickly | The water has run out or the steam valve is not closed | Add water, close the steam tap |
| Scale indicator | Constantly on | Decalcification required | Start cleaning cycle |
| Scale indicator | Flashing | The process of decalcification is underway | Do not turn off the machine, wait for the end |
| red lamp | Constantly on | The brewing unit is dirty or there is no coffee | Rinse the block, add grains |
If after all the procedures the indicators behave strangely, try performing a full reset. This usually requires turning off the machine, holding down a certain combination of buttons (often the steam button and the cup volume button) and turning on the power while holding them.
To extend the life of the thermoblock, use bottled water with low mineralization or water that has undergone reverse osmosis, but be sure to add a mineralizer if the manufacturer recommends it.
Common mistakes and precautions
The most common mistake is using the wrong tools. As already mentioned, acetic acid too aggressive for internal rubber seals Magnifica. It can make them hard and brittle, which will lead to leaks several months after such “cleaning”.
Another mistake is interrupting the cycle. If you turn off the machine in the middle of the process, the acid solution will remain inside the boiler indefinitely. This can lead to localized metal corrosion or damage to the valves. If the cycle is interrupted accidentally (for example, by a power surge), it is better to start the program again with a new solution.
⚠️ Attention: Never use descaling products containing chlorine or phosphates. They may react with the aluminum alloys of the heating element.
It is also important not to confuse the decalcification mode with the brewing unit washing mode. These are different procedures. Rinsing the brewing unit (Rinc cycle) only cleans the coffee path, but does not affect the water heating system, where scale forms.
Regular maintenance is the key to a long life of equipment. If you live in an area with very hard water, perform maintenance more often than the indicator recommends. A visual inspection of the steam spout and the coffee brewing speed will tell you more than the timer inside the machine.
The use of original products and softener filters reduces the frequency of decalcification by 3-4 times and maintains the warranty on the device.
Frequently asked questions (FAQ)
Is it possible to use citric acid instead of a special product?
This is technically possible, but is not recommended by the manufacturer. Citric acid can be difficult to dissolve and create sediment, as well as damage rubber seals if used frequently. It is better to use specialized liquid products based on sulfamic or lactic acid.
How long does a full decalcification cycle take?
The complete process, including running the solution and two rinses with clean water, takes 30 to 40 minutes. Time depends on specific model Magnifica and the degree of contamination of the system.
What should I do if my coffee tastes sour after cleaning?
Most likely, there are residual decalcification agents left in the system. It is necessary to carry out an additional rinsing cycle with clean water (without entering the service menu, just pouring a few cups of hot water) or run the cleaning program again, but only with clean water.
Do I need to remove the brewing unit before decalcifying?
No, you do not need to remove the brewing unit. Decalcification cleans the hydraulic circuit and boiler. The brewing unit is cleaned separately under running water without the use of chemicals when the corresponding red indicator lights up.