Owners of espresso machines of the series Magnifica S often face the need for deep cleaning when standard washing is no longer enough. The accumulation of coffee oils, limescale and fine dust will deteriorate the taste of the drink over time and can lead to technical malfunctions. Disassembling the device allows you to get to hard-to-reach places that cannot be processed automatically.
The dismantling process requires care and understanding of the internal structure of the unit. Brewing unit is the heart of the machine, and its condition directly affects the quality of the espresso. Before starting any work, make sure that the device has completely cooled down and is disconnected from the power supply, as hot water under pressure may remain inside.
In this manual, we will look in detail at the steps of removing external panels, removing key components and carrying out preventive maintenance. Proper maintenance will extend service life grinding mechanism and boiler. It is important not to rush and record the sequence of actions so that the assembly goes through without any unnecessary questions.
⚠️ Attention: Any actions to disassemble the case may result in loss of warranty service. Proceed with the procedure only if the warranty period has already expired or you are ready to take on the risks.
Preparation of the workplace and necessary tools
For successful and safe disassembly of the coffee machine DeLonghi Magnifica ESAM You will need a minimum set of tools that any home craftsman can find in his home. The main requirement is cleanliness and good lighting, as small parts and screws can easily be lost against a dark background. Prepare a container for water and a soft cloth in advance for wiping the components.
You will need different size Phillips screwdrivers as the screws may vary in length and head diameter. It would also be a good idea to have a flat-head screwdriver to carefully pry up the plastic latches that hold the decorative panels. Some models may have hidden screws under rubber plugs or stickers.
- 🔧 Phillips screwdriver (PH1 and PH2) for unscrewing the main mounting screws of the case.
- 🛠️ A flat screwdriver or plastic spatula for opening the latches without damaging the plastic.
- 🧼 A container of warm water and a decalcifier for washing the internal tubes.
- 🧽 Silicone lubricant for food production, necessary for treating seals after cleaning.
Before you begin to unscrew the screws, be sure to remove the upper bowl grate and remove the brewing unit through the service door. This is a standard procedure described in the manual, which allows you to free up internal space. Without removing this unit, further disassembly is impossible and can lead to breakage of the guides.
⚠️ Attention: Do not use metal objects to pry up plastic if there are no plastic analogues. Metal scratches easily and can damage fragile panel fastenings.
Removing the outer panels and top cover
The first step in deep disassembly is to remove the top plastic casing. On some modifications Magnifica S it is secured with screws, accessible after removing the drip tray and drip tray. In other cases, the fasteners are hidden under decorative elements or located in niches on the sides of the body.
Carefully unscrew all visible screws and place them in a separate container so as not to mix them up. The top cover is often fixed with plastic latches, so after unscrewing the fasteners, it needs to be slightly lifted and moved back or forward, depending on the model. Sudden movements may break the guides.
Removing the top allows access to the upper part of the hydraulic system and valves. Dust and spilled coffee often accumulate here, which begin to smell unpleasant when heated. Carefully wipe the internal surfaces with a damp cloth, avoiding moisture on the electrical contacts and control board.
Pay special attention to the area around brewing mechanism. This is where the main contact with the coffee environment occurs. If coffee fossils are visible on the walls of the chamber, they must be soaked with a special solution or warm water, but not scraped with sharp objects.
Removing and servicing the brewing unit
Although the brewing unit can be removed through the side door for regular cleaning, it is worth inspecting it in more detail when completely disassembled. In device DeLonghi this unit is removable and modular. To completely dismantle it inside the housing, it may be necessary to disconnect several tubes and clamps.
The main problem that users encounter is the mechanism jamming or cracks appearing on the plastic walls. If you notice mechanical damage, it is better to replace the unit with a new one, since the tightness is broken. In case of contamination with limescale, soak the block in a solution of citric acid or a special decalcifier.
- ☕ Remove the upper pressure spring and check the condition of the pistons for wear.
- 💧 Rinse the mesh filter under strong water pressure, removing all coffee particles.
- 🔍 Inspect the rubber seals: if they have lost elasticity, lubricate them with food-grade silicone.
Coffee absorbs odors and your espresso may later taste like cleaner. Use only products approved by the manufacturer.
What should I do if the brewing unit does not fit back in?
If the block does not snap into place, do not force it. Make sure the pistons are in the down position (sometimes they may need to be manually pushed in until they click before installation). Also check to see if any tubes or wires are interfering with proper installation of the unit in the shaft.">
Access to the grinding mechanism and adjustment of the millstones
Coffee grinder in Magnifica S located under the upper grain hopper. To access it, you must remove the hopper and then unscrew the retaining screws that hold the top platform in place. The millstones can be ceramic or steel, depending on the year of manufacture and the specific modification of the machine.
Removing coffee oils from the grinders is a critical procedure. Old oil oxidizes and gives the drink a bitter and rancid taste. For cleaning, use a dry brush and vacuum cleaner. It is not recommended to wash the grinders with water unless you are sure that they can dry quickly and completely, as moisture will cause the metal parts to rust or the coffee to swell.
The degree of grinding is adjusted using a special regulator located inside the mechanism. You can change settings only during rotation millstones If you have disassembled the machine for cleaning, when reassembling it, check that the regulator is installed correctly so as not to damage the mechanism when starting it for the first time.
| Parameter | Recommendation | Check frequency |
|---|---|---|
| Grinding degree | Adjust with the engine running | When changing the type of coffee |
| Cleanliness of the millstones | Vacuuming, brushing | Once every 3-6 months |
| Bunker condition | Rinsing with warm water without chemicals | With every grain change |
⚠️ Attention: Never turn the grind control when the grinder motor is turned off. This can lead to breakage of the teeth of the adjusting mechanism and jamming of the millstones.
Cleaning the hydraulic system and boiler
The internal tubes and boiler are a closed system that is difficult to disassemble without breaking the seal. However, when the housing is completely disassembled, access to the connections between the pipes and the pump and boiler opens up. Calcium deposits often form here, reducing water permeability.
If the pressure in the system has dropped and decalcification does not help, the valves or the boiler itself may be clogged. In extreme cases, the boiler may need to be removed for mechanical cleaning or replacement. For DeLonghi It is typical to use aluminum or steel thermoblocks, which are sensitive to aggressive acids.
When working on the hydraulic system, be sure to use food-grade silicone lubricants for all rubber connections. After assembly and before turning on for the first time, make sure that all tubes are pushed in all the way and secured with clamps. There must be air in the system, so it is better to start the first time without installing the brewing unit in order to pump water through the system.
☑️ Checking the hydraulic system
It is important to check the condition solenoid valve, which releases pressure after preparing coffee. If it is clogged with coffee dust, water may leak into the tray even when not in use. It can be carefully removed and washed in an ultrasonic bath or warm water.
Assembly and initial launch
Assembly is carried out in reverse order. Make sure that all screws are tightened with the same force, but not fanatically, so as not to break the plastic thread. Pay special attention to connecting the electrical connectors: they should click and lock securely.
After installing all panels and brewing unit, pour fresh water into the reservoir. Plug in the machine and start the rinsing or steam mode. This is necessary to remove air from the system and check the tightness of all connections that you touched.
- 🔌 Check the reliability of all cables and wires before closing the case.
- 💧 Check that there are no leaks under the machine in the first 10-15 minutes of operation.
- ☕ Brew 2-3 cups of coffee empty to stabilize the temperature and wash away any remaining cleaning products.
If the machine makes unusual noises or does not build up pressure, turn it off immediately and check for proper assembly. Often the problem lies in an incorrectly installed brewing unit or a pinched tube. Care during the assembly phase saves time on repeated disassembly.
High-quality assembly and leak testing are the key to long-term operation of the coffee machine after servicing. Don't ignore the test run.
How often should I completely disassemble my DeLonghi coffee machine?
Complete disassembly and opening of the housing is rarely required, usually once every 1-2 years or when serious problems arise (scale, leaks, foreign odors). Regular cleaning of the brewing unit should be carried out weekly.
Can the brewing unit be washed in the dishwasher?
Absolutely not. High temperatures and aggressive detergents deform plastic parts and destroy special lubricants, which will lead to rapid wear of the mechanism.
What should I do if the machine does not turn on after assembly?
Check the connection of the network cable inside the case and the condition of the fuse. Also ensure that all service doors and tray are tightly closed, as safety sensors may prevent starting.
What kind of lubricant should I use to lubricate the seals?
Use only food grade silicone grease. Technical lubricants (litol, grease) are toxic and, upon contact with hot water, can get into the drink, making it undrinkable.