A sharp decrease in espresso pressure or the appearance of water leaks under the body often signal the need for urgent diagnosis of the internal nodes of the carob coffee maker. To eliminate blockages in the hydraulic system or replace the sealing rings, the owner will have to completely dismantle the casing and access the pump and boiler. Without a careful disassembly DeLonghi It is impossible to carry out high-quality decalcination of hidden cavities or replace a failed solenoid valve.
The dismantling process requires care, since the design of Italian devices involves the use of hidden screws and plastic latches. Incorrect application of force when removing the covers can lead to breakage of fasteners, which will complicate further assembly. Before starting work, be sure to disconnect the device from the power grid and wait for the complete cooling of the metal parts.
The first stage of preparation is the liberation of the working area and the collection of the necessary tool, as disassembly DeLonghi EC680 or older models like EC685 It requires precision. You will need a set of cross and flat screwdrivers, tweezers to extract small parts, and a container to drain residual water from the system. It will not be superfluous to prepare towels to protect the countertop from possible moisture residue inside the hoses.
Visual inspection of the body helps to identify the attachment sites, which are often masked by decorative plugs or located in hard-to-reach niches. In some models, the screws may be hidden under rubber legs or behind a pallet panel to collect droplets. Dismantling It begins with the search for these hidden fixation points, without removing which it is impossible to remove the upper cover.
⚠️ Warning: Before starting disassembly, make sure the device is completely cooled. Working with a hot boiler can lead to serious burns, and getting cold water on hot heaters will cause their deformation.
Removal of external elements and pallet
Start disassembling the coffee maker DeLonghi Magnifica or carob models follow with the dismantling of removable external components. First of all, a pallet for drops and a water tank is removed, which opens access to the bottom of the body. Under the pallet is often hidden service panel or additional screws holding the main frame.
Next, the filter holder (horn) and the lens grille, if installed, must be removed. These elements may interfere with access to the side screws. Carefully pull the decorative linings if they are present, checking for hidden latches. Plastic in older models can be brittle, so all movements should be smooth and without jerking.
- 🔧 Remove the pallet and water tank, wipe the surface dry.
- 🔧 Examine the niche under the pallet for the presence of the mounting screws of the body.
- 🔧 Remove the top panel by unscrewing visible screws around the perimeter.
- 🔧 Disconnect the control buttons if they are displayed on the top cover.
When removing the upper cover, pay attention to the location of the indicators and switches. In the series models EC The control panel can be integrated into the top, requiring the prior shutdown of the plumes. Contact groups They are often fixed with plastic clips, which must be pressed carefully so as not to break the locks.
Use a magnetic tray to fold screws of different sizes so as not to confuse them when assembly. Long screws can damage internal components if installed in the wrong place.
Access to internal components and hydraulic system
After removing the outer casing, access to the main frame is opened, where the boiler, pump and electric board are located. In the carob coffee makers DeLonghi The hydraulic system is usually compactly assembled around a central unit. For further disassembly, it may be necessary to disconnect the silicone tubes supplying water to the boiler and capuchinator.
It is important to remember the order of connection of the tubes, as an error in the assembly will lead to improper circulation of water or leaks. It is recommended to take pictures of each step of disconnection or use markings for hoses. Hydraulic circuit In these devices is quite simple, but requires tightness of all connections.
Accessing the pump often requires dismantling the metal frame or moving the boiler sideways. Pomp in coffee makers DeLonghi It is usually fixed to rubber shock absorbers that extinguish the vibration. If a pump replacement is required, disconnect the electrical terminals and remove the clamps from the inlet and outlet pipes.
| Component | Function | Frequent malfunction | Replacement tool |
|---|---|---|---|
| Pump (pump) | Pressure creation 9-15 bar | Noise, no pressure | Screwdriver, pliers |
| solenoid | Pressure relief after cooking | Drips from the nose, hums | Key-pipe, screwdriver. |
| Boiler | Heating water | Scale, break the TEN. | Headset set |
| Flow sensor | Water countdown | Overflow or shortfall | Tweezers, screwdriver. |
⚠️ Attention: When the tubes are disconnected, residual water may leak out of the system. Prepare the absorbent fabric so that the liquid does not get on the electric control board.
Dismantling of boiler and heating element
The most difficult stage of disassembling the coffee maker DeLonghi Dedica Or similar models are working with a boiler. This unit is attached to the frame by several bolts and connected to a variety of temperature and pressure sensors. Before removal, it is necessary to turn off all suitable wires, having previously remembered their location.
The heating element is often covered with a layer of scale, which should be carefully removed before installing a new unit or reverse assembly. Mechanical cleaning of the boiler is possible only after its complete removal from the body. Use special means to remove scale, avoiding abrasive materials that can damage the inner coating.
- 🔧 Unscrew the fasteners that hold the boiler on the frame.
- 🔧 Remove thermostats and sensors by gently pulling them up.
- 🔧 Disconnect the tube from the steam diver and the brewing group.
- 🔧 Remove the block entirely, taking care with the remaining water.
When installing a new or cleaned boiler, be sure to replace the sealing gaskets. Old rubber rings lose elasticity and can cause leaks under high pressure. Tightness The compounds are a key factor in the stable operation of the coffee maker after repair.
Where to find the serial number
The serial number is usually located on a sticker on the bottom of the device or on the back wall of the case. It is necessary to find original parts and circuits for your modification.
Disassembly of the brewing block (for automatic models)
In automatic coffee makers DeLonghi Magnifica and Primadonna The key node is the brew group. To remove it, it is not always necessary to completely disassemble the body, often it is enough to open the service door. However, for deep cleaning or replacement of gears, the mechanism has to be disassembled completely.
Removal of the brewing block requires simultaneous pressing on the fixing levers and careful pulling of the node outwards. Inside the mechanism are plastic gears and lubricant, which eventually wear out or dry out. Disassembly is carried out by snapping the side covers of the block and removing the central cassette.
Check the drive gears for chips and cracks. If the teeth are worn, the mechanism will work with jerks or make a strong noise. Lubricant must be food and heat resistant, ordinary engine oil is strictly prohibited.
☑️ Checklist before assembly
Diagnostics of electric board and sensors
Electronic control board in coffee makers DeLonghi It is located in the lower or rear part of the body, often in a protective casing. To access it may require removal of the bottom cover or dismantling of the side panels. Visually inspect the charge for swollen capacitors or traces of burns.
Temperature and water flow sensors are connected to the board via connectors. Oxidation of the contacts can lead to errors in the operation of the device when the coffee maker stops heating water or signaling readiness. Cleaning contacts and checking the integrity of wires often solves the problem without replacing expensive parts.
If the board shows traces of water ingress, the device must be thoroughly dried before turning on. Short circuit can disable not only the board, but also other components of the system. Multimeter It will help to check the integrity of the fuses and TENS.
⚠️ Warning: Do not touch the board elements with dirty or wet hands. Static electricity can damage sensitive electronics even if the device is turned off from the outlet.
Assembly and testing of the device
The assembly of the coffee maker is carried out in the order of reverse disassembly. Make sure all screws are twisted to the point, but without excessive effort, so as not to break the thread in the plastic parts. Pay special attention to the correct positioning of tubes and hoses, they should not be clamped or twisted.
Before turning on the network, fill the tank with water and start the Strait mode without coffee. This will check the system for leakage and remove air plugs from the pump. Carefully monitor the places of connections of tubes for the appearance of drops.
If the device is working normally, heats water and supplies steam, you can consider the repair successful. In case of extraneous noise or leaks, immediately turn off the device and repeat the diagnosis. Proper assembly guarantees a long service life of the device after repair.
The secret of success: Take photos of each stage of the disassembly. This will help you avoid getting confused about the order of assembly and arrangement of small parts, especially if you are doing it for the first time.
Do I need to clean the stain after each cleaning?
Yes, it is recommended to lubricate the moving parts of the brewing unit with a special food lubricant after each deep cleaning or every 2-3 months of active operation. This prevents wear of plastic gears and reduces noise levels.
Can I wash the boiler of a DeLonghi coffee maker in a dishwasher?
No, you can't wash the boiler in the dishwasher. High temperature and aggressive detergents can damage the inner coating and seals. Cleaning should be carried out manually with special means from scale.
What if the coffee maker does not turn on after assembly?
Check the integrity of the fuse on the board and the reliability of connecting all electrical connectors. Make sure the water level sensor in the tank is installed correctly and is in contact with the mechanism.
How often should a full disassembly be done for prevention?
Complete disassembly with cleaning of internal nodes is recommended every 1-2 years depending on the hardness of the water and the intensity of use. Regular decalcination with special means can significantly increase the intervals between complete disassemblies.