Do-it-yourself krups nespresso coffee machine repair

In detail: do-it-yourself repair of the krups nespresso coffee machine from a real master for the site my.housecope.com.

One of the leaders in the production of high-quality and reliable coffee machines is the well-known German company Krups, which was founded about two hundred years ago. Krups coffee machines are indispensable devices for true connoisseurs of the best coffee. With their help, you can easily and quickly prepare espresso, mocha, latte, cappuccino or glaze with incomparable taste and aroma.

These coffee machines are characterized by high reliability and durability, but sometimes even with them troubles happen. Therefore, every owner needs to know how to correctly repair the Krups coffee machine.

German Krups coffee machines, subject to all operating rules, are capable of perfectly functioning throughout the entire warranty period. However, improper use combined with lack of proper care can lead to some breakdowns and malfunctions. Most often, the following factors lead to the output of this device:

negligence and rudeness when using the coffee machine;
using too hard water or water of questionable quality;
quite frequent and sudden changes in electrical voltage;
the appearance of strong limescale on the heating elements of the Krups coffee machine;
jam of capsules with coffee and the absolute impossibility of removing them;
the coffee machine has been dropped on the floor.

In order to determine if your Krups espresso machine needs repair, you need to carefully observe its behavior. Let's consider the problems that arise most often, as well as effective ways to solve them. If you are not sure that you can efficiently fix faults with your own hands, photos and videos will help you.

Video (click to play).

If during the operation of the coffee machine strong squeaks and other extraneous sounds appear, this signals a malfunction of the coffee grinder mechanism.
If the device has ceased to cope with the functions of brewing coffee or brews it, but is too weak and unsaturated in the presence of all the necessary ingredients, a thorough diagnosis is required to determine the exact cause.
If any leaks are found on your Krups espresso machine, you must immediately disconnect the appliance from the mains. This problem indicates a damaged tube or valve. After replacing the defective part, you can resume using the device.
If the machine stops brewing cappuccino, the problem can be solved by thoroughly cleaning the cappuccino maker.

There are three main types of repairs to the Krups coffee machine according to the nature of the malfunction:

A simple repair of a Krups coffee machine in most cases involves performing such actions as cleaning the heating elements of the device from scale, as well as replacing some parts that are out of order - clamps, pipes, gaskets, sensors, brackets, etc. This type of repair can be successful. done by yourself.

To carry out repairs of medium complexity with your own hands, you will need certain knowledge and skills that can be gleaned from the training videos. This type of repair includes the replacement of important components with the preliminary complete disassembly of the Krups coffee machine. If you are not confident in your abilities, it is better not to take risks and use the services of experienced specialists.

Complicated repairs to your Krups espresso machine should be trusted by real professionals. It typically includes the replacement of components such as control board, power board, and display. To cope with it on your own is simply unrealistic.

In many cases, it is much easier to prevent malfunctions of your Krups espresso machine than to fix them later.To do this, it is necessary to follow the operating rules and pay attention to competent prevention.

Firstly, regular replacement of the filter of the coffee machine will reliably protect the device from the harmful effects of poor quality water.

Secondly, the decalcification procedure will help to extend the period of reliable operation of this device - it implies thorough descaling and should be carried out regularly.

Effective preventive measures, competent and careful operation, as well as timely repairs are prerequisites that will significantly extend the life of your Krups coffee machine.

The repair of Saeco coffee makers was discussed, they described what would break. The speech concerned coffee machines that can grind grain, dose, brew, pour into cups. The difference between the coffee maker is in its modest capabilities, there are plenty of designs. More often we find three on the counter: drip, espresso, capsule. There are quite large differences between them in the methods of cooking, the insides are similar. Each device has one 230 volt motor (for example, synchronous with a magnetized rotor) that drives the pump. More like a compressor, in some the piston goes back and forth. Creates high pressure (horn modifications). Consider how to repair a coffee maker with your own hands.

At the coffee maker, a container for water and a heating element form the basis, but there are further differences. The difference between a drip coffee maker and an espresso machine is described by the operating pressure. In the first case, boiling water simply drips onto the filter containing the poured coffee, the drink seeps further down, flows down, fills the cup. It is important to see the drop-stop function so as not to constantly collect moisture. In an espresso, a jet of water with a temperature of 95 degrees is thrown under pressure, forced through the tablet. To top it off, a special press drains the pomace. It turns out a dry squeezed coffee tablet. No additional filter needs to be installed. Coffee machines work on different principles, there are drip, espresso models.

Capsule coffee makers contain an infusion compartment with a needle, into which a plastic container of coffee powder is inserted. Brewing can be carried out under pressure or without. The first method differs from the second by the presence of a boiler in the design: water gains the required temperature, the compressor creates pressure. In the latter case, we often observe the possibility of obtaining milk froth. Stable bubbles are generated by the high temperature steam. The walls of the balls are cured by strong heat. One difference between brewing coffee and getting creamed:

Coffee is brewed with water of 95 degrees Celsius, to obtain steam, the heating elements work, reaching a threshold of 127 degrees. The modes are considered the best for traditional recipes.

Pay attention to the compressor: it allows you to brew coffee correctly, to get froth. The generated pressure is impressive, reaching 15 - 20 bar, more than is supplied to the heating system in the fall, checking during the period of technical measures. Managed to brew high quality coffee. In models of espresso (sometimes called carob), a special horn where coffee is applied. Then the structure is screwed onto the housing branch pipe, the handles are tightened with force. It turns out a dense tablet through which water is powerless to flow, having lost the circuit of a high-power compressor. It is possible to brew excellent coffee, not much different from the true drink obtained by the Turks according to generally accepted, traditional methods.

We describe in detail the device of a coffee maker, a variety of coffee makers, so that readers can imagine what is happening inside. Knowing the features of the functioning of the devices, it is easy to localize the breakdown. The main types of malfunctions will visit the mind automatically, the internal structure will become apparent.

We are writing the work of a drip coffee maker. Water is taken in by a container through a hose, pumped out by a pump. The flow heater delivers a fixed power, the pump speed is matched to the output temperature. Smart coffee makers have a sensor that monitors the parameters of the environment.By passing the pipe, the hot water reaches the upper compartment, which is equipped with a filter and contains ground coffee. The dosage is carried out according to the readings of the flow meter, or a temporary pump relay limits the duration of the heating element activation. Adjustment is possible. The spring timer works by feeding the pump through the spark extinguishing relay, or the electronic board monitors the flow meter readings, stopping the water supply at the right time.

In some cases, the temperature is not monitored at all. A portion is taken through a check valve. Then the heating element in a matter of seconds turns the liquid into steam, the jet rushes up the tube, filling the infusion compartment, and flows into the cup. The technique will not allow you to get true coffee, it is attractive for its simplicity of implementation. The coffee maker knows how many micro doses one cup can hold. The simplest manual counter controls the operation. The absence of water in the pipe for a new intake is controlled by a bimetallic plate. In the simplest case, the heating element immediately works on a volume of water equal to a standard cup of coffee.

The drip coffee maker has an hourglass-like shape; it is powerless to make cappuccino froth, latte. Self-repair of drip coffee makers is simple. Inside we will find:

a heating element;
water pump;
control scheme.

There is an electronic filling of the microcircuits - there is a pulsed power supply that generates a constant voltage of the required rating (+5, +12 V). The efficiency is increased. To measure temperature, a bimetallic plate is used, which rarely breaks. The check valve can be easily checked by blowing in one direction or the other. The engine is running, controlled by a time relay (ordinary RC circuit), less often we see a flow meter, a level sensor. The pump rings, if the engine is collector, the action is repeated for the sections one by one.

Repairing a carob coffee maker seems to be the most difficult. There is not a pump - a compressor that pumps water under pressure into the boiler. The heater is located outside the tank. Outwardly, it resembles an iron: the heating element is bolted to the wall of a collapsible boiler. To regulate the temperature, there is a bimetallic plate, the sensor tension is adjusted with a screw for at least two positions. For brewing coffee, a temperature of 95 degrees Celsius is used, getting steam will require 127 degrees. Accordingly, the relay contact of the heating element opens at the right time. The boiler is durable, assembled in two halves, withstands a pressure of 20 atm without problems. The inlet is equipped with a check valve so that water does not go back during thermal expansion, heating.

The engine is made to dispense a fixed portion of water. The espresso maker is named after the coffee is poured into a long-handled cup. The tension design is put on the body, the coffee is rammed. Under the pressure generated by the pump, water fills the mug. Coffee makers are considered the best, experts say: carob models will allow you to take the maximum taste and aroma from the beans.

Inside the carob coffee makers, one motor belongs to the pump. Switching the path to steam supply is carried out manually. A collector motor is rarely used, the pump is relatively small, the point of fencing a garden disappears, there is a lot of noise. The pressure is generated by a piston (like a refrigeration compressor), which does not require much effort to develop. It is easier to save copper, use an induction motor. Brushes take up a lot of space. Carob-type coffee makers are equipped with power supplies for the engine and other elements.

Expensive models contain a motor compatible with inverter control. There are valves. A feature of the carob models is the presence of a boiler bypass valve. The pressure is dosed to ensure the correct brewing process.

Capsule coffee makers differ little from drip coffee makers. A small container containing coffee powder is installed inside, the piercing mechanism is manually clamped. After use, the capsule is ejected automatically, removed by the user of the device.Inside, the pump controls the flow of liquid, the instantaneous water heater raises the water temperature, reaching the set one. Sometimes there are no sensors, just the pump operates according to a timer. The water flow rate has been calculated in advance. It remains to substitute the cup. If water is not dosed correctly, we are looking for a power source for the pump motor. The timing circuit is faulty, no matter how the interval is set.

Do-it-yourself coffee maker repair does not depend too much on the model. Saeko, Gaggia, Nespresso, Rowenta, Spidem - they differ in details. Shape, arrangement of parts, types of sensors. The principle of operation remains the same everywhere. Repairing Jura coffee machines is similar to repairing Krups coffee machines.Inspection begins along the cord along the power board, if any. The switching source is equipped with a cascade of filters, a diode bridge, and key transistors. Elements before and after the transformer are inspected for burnout, ringing. It's easier to immediately measure the output voltage of the circuit, then move on. It is easier to check the pump separately. Before that, look at the voltage rating required for the power supply in order to avoid an incident. In the event of a pump breakdown, the possibility of winding the stator coils is assessed. There is a chance to successfully complete the operation, you will not have to buy a new part.What is a good and high-quality coffee machine for? Of course, for aromatic hot coffee in the morning. The brewing process of this wonderful drink is almost completely automated and requires minimal human intervention. The filling of the device implies the presence of many mechanical parts, electronic circuits, as well as a miniature hydraulic system. However, everything soon fails and these necessary devices are no exception. In the event of a breakdown of coffee machines, there are only two options: take it to the service or repair the coffee machine yourself.

Water supply interrupted. There is a blockage in the pipeline of the mechanism;

The coffee has acquired an unusual smell or taste. In this case, it is not always necessary to fix something with your own hands. Perhaps you just need to change the coffee tablets, and there is a very wide selection of them: Dolce Gusto - Dolce Gusto, Nestlé, Jacobs, etc. Alternatively, the filter of the coffee machine may be clogged. Cheap plastic can be another factor affecting the taste and smell of coffee. During operation, some parts of the machine heat up to 130 degrees, which can cause the plastic to melt;

Cold coffee. Most likely, your heating element has stopped working;

The espresso machine is not working. Many factors can affect this: the motor is broken, the pump does not work, the power cable is broken;

Water dosage exceeded (most often found in capsule coffee machines). Most likely, the breakdown lies in the engine or in the timer circuit.

The brewing time setting circuit does not work or the dosage into the cup is incorrectly adjusted. Of course, you need to focus on the model of the device and its brand, but a common reason is the improper operation of the engine control circuit, or one of its compartments.

If you are not sure that the repair of the coffee machine is within your power, then it is better to refer it to specialists. If the device is under warranty, then it is not worth disassembling it at all, it will instantly lose the warranty.

To repair the coffee machine, first you need to disassemble it. And how to do it correctly, step by step is described below.

It is necessary to find the back wall of the device, or rather the set screws. Unscrew with a screwdriver, pliers or whatever is at hand and is ideal for such work, set aside. It is worth noting that there may be several options for screws. They can be hidden, cruciform, or with a convex head;
The screws are removed, it is logical that the cover should be easily removed. However, if it cannot be removed, then there are hidden locks in the case. Most often these are ordinary plastic latches and they are located at the bottom of the back cover. From the outside, such a lock can be easily opened with a knife or a small screwdriver;
Finally, access to the "insides" of the machine has been obtained, it's time to start repairing it.

And so let's go in order. There is a blockage in the water supply pipe. In such coffee machines as: Delongee, Bork - Bork, Ariete - Ariete and others, cleaning is done using a long and thin rubber hose. It must be run along the duct and thereby break through the blockage. However, it will be much more effective to use special brushes on a flexible leg.

It is a little more difficult to clean the filter with your own hands. With frequent use of the coffee machine, the filter accumulates: scale, coffee residues, salt plugs, etc. Cleaning must be approached carefully, but the most important thing is to do it according to the instructions, otherwise you can violate the integrity of the part. In the process, it is allowed to use a soft swab sprinkled with alcohol. Rinse the filter thoroughly after cleaning.

If you are unable to solve the problem yourself, contact a Saeco espresso machine repair center.The coffee machines of the firms Mulinex, Krups, Roventa, Saeko have another problem - water leaks. In them, the valve regulating the water supply is located practically in the filter. If the coffee does not stop pouring, most likely a worn valve is to blame, which leads to this phenomenon.The valve cannot be repaired; in this case, only replacement with another new part is available. To understand whether the valve has broken, it is enough to pour coffee out of the machine, disassemble, rinse and inspect well for possible breakdown.

Initially, it is worth checking if everything is in order with the power supply. See if the cable is broken, check the grounding.

It also happens that household coffee machines produced in China simply lose contacts (they go away). Such cases were encountered with more famous brands: zauber, melitta, trevi. It is enough to check all the wire connections with the control circuit.

A common case for Senseo¸Siemens, Ufesa machines, they have low-quality thermostats built into them. To diagnose it, you need to remove one wire from its end and "ring" the contacts with a tester. If all is well, then the chain will be closed.

The heating element may also fail. Diagnostics is carried out in the same way as a thermostat. Replacing it with a new one is difficult, it will be easier to try to repair or buy a new coffee machine.

Very often, on the shelves next to the coffee machine, all the necessary accessories are sold that you will certainly need for the correct operation of the device. And for cleaning technical parts, it is definitely advised to buy special flexible brushes.

The principle of operation and repair of capsule coffee machines is slightly different from drip coffee machines. A small container of coffee powder is attached to the inside of the machine, the piercing mechanism is manually clamped. After use, the capsule is disposed of. Inside such devices, most often there are no temperature sensors, but there is an ordinary pump that runs on a timer. The water flow rate has been calculated in advance. If the water supply is carried out with the wrong dosage, then the time supply circuit may have broken. Image - DIY krups nespresso coffee machine repair

Repair of coffee makers often does not depend on the brand or model; in general, they differ only in nuances. This can be the shape, as well as the location of parts, size, different types of sensors. The very principle of operation of the coffee machine does not change.

Any professional inspection for breakage always starts with the cord. It makes no difference whether it is a capsule or drip coffee machine repair. Then the power board is checked (if any), it is worth noting that the coffee machine has a lot of filters, diode bridges, and also transistors. All this must be inspected for burnout. This is the only way to recognize the true cause of the equipment malfunctioning.

Any electrical device can fail over time. Repairing coffee makers from Delonghi, Saeco or Krups is quite easy to do with your own hands. These kitchen appliances are considered one of the easiest to repair and operate.

Before you start repairing the device, you need to determine what exactly broke in it.This will greatly speed up and simplify the repair process. There are two types of coffee machines:

Their main difference is the working pressure. In drip coffee makers (Bosch - Bosch, Zelmer - Zelmer, Vitek - Vitek) hot water drips through the coffee filter, through which it passes into the cup, already being a fragrant drink. In an espresso, a stream of boiling water is poured into the cup, passing through a coffee tablet (compressed ground natural coffee). The advantage of using espresso machines - Electrolux, Binatone, Braun, Philips (Philips) and many others - is that they can work without a filter.

Photo - espresso

Capsule coffee machines for brewing coffee have a special container into which ground natural powder is poured. This allows brewing a drink with or without pressure. The key difference between these functions is that with professional espresso machines, you can make a frothy coffee.

Photo - kapelnaya

Main problems coffee machines and coffee makers of domestic and professional type:

The water stopped flowing. Most likely, one of the pipes supplying water was simply clogged;
The coffee began to give off a strange smell or taste. In this case, it is not always necessary to repair the coffee makers yourself, perhaps you just changed the coffee tablets (they are Dolce Gusto - Dolce Gusto, Nestlé, Jacobs, etc.). Another reason can be a clogged filter or cheap material for the device. If the optimum water temperature for brewing coffee is 95 degrees, then the internal parts are heated to 125 and above. As a result, the cheap plastic can start to melt, imparting its taste to the drink;
Cold coffee. The heating element stopped working;
Incorrect dosage of water (found in capsule coffee makers). A breakdown can occur both in the engine and in the timer circuit;
The espresso machine does not turn on. There may be several reasons: breakdown of the engine, pump, problems with the power cord;
You cannot set the brewing or filling time of the cup. Depending on the type of coffee maker, this may be a breakdown of the time relay, control circuit, engine (or one of its compartments).

It is worth noting that after the intervention, warranty repairs will no longer be provided, so if you are not confident in your abilities, it is better to contact the branded service center.

Photo - schematic diagram

In order to repair any coffee makers (Nespresso - Nespresso, Delongy), you will need to disassemble them first. Step-by-step instructions on how to do this:

There are set screws on the back of the coffee machine. They need to be untwisted and put aside. They can be of several types: hidden, cruciform and cone-shaped (often found in Indesite). They are removed with a screwdriver, pliers or other suitable tools;
If, after removing the screws, the case is not retracted, then it is secured with hidden locks. The latches are located at the bottom of the rear panel. They cannot be opened from the outside, so you have to pry them with a knife or screwdriver;
After removing the case, you can start repair work.

If the pipe is clogged at Delongey, Bork - Bork, Ariete - Ariete or other coffee makers, then you need to use a long thin rubber hose for repairs. It starts up along the duct and breaks through the blockage. Sometimes for such purposes, special brushes with a flexible leg are used, they allow you to clean the pipe and remove not only coffee, but also mineral deposits.

Photo - construction

Cleaning the filter is a little more difficult. With frequent use, various debris accumulates on it: salt plugs, coffee dust, scale. It should be cleaned only according to the instructions, since otherwise, the integrity of the spare part may be damaged. In most cases, it is allowed to wipe it with a swab dipped in alcohol or other degreaser. Rinse the part thoroughly after rinsing.

Photo - filter

Also, problems can be associated with the filter if water leaks from the coffee maker. This is often found in machines manufactured by Moulinex, Krups, Rowenta, Saego.A special valve is installed near the filter, which, after turning off the timer, turns off the water supply. If after a certain time the drink has not stopped flowing, then the cause is a malfunction of this element. The valve may wear out after frequent use, or it may simply not be able to handle the accumulated amount of coffee. To check and fix the breakdown, you need to disassemble the coffee machine, pour the coffee out of it and inspect the valve. Please note that it cannot be repaired, so the part changes immediately.

Photo - disassembly

If the coffee maker Redmond, Spidem, Tefal, Siemens and others does not turn on, then urgent repair is required:

The first step is to check the power wire. It needs to be examined for an open circuit, and also to additionally check the grounding. It connects to the terminal block, so be careful when diagnosing;
Sometimes, household coffee machines made in China simply lose contacts. It also occurs in professional models (zauber, melitta, trevi). In this case, you need to check all the places where the wires are connected to the control circuit;
Many modern cars (Senseo¸Siemens, Ufesa) sin with a low-quality thermostat. To diagnose it, you need to remove one wire from its end and check the contacts with a tester. With a serviceable element, the circuit must be closed;
Also, the coffee maker may not turn on if the heating element needs repair. It is called in the same way as a thermostat. For many models (Jura Impressa, Miele, Gaggia, Butler) it is made in the form of a disk, so it will be rather difficult to change it, it is easier to try to repair a part or buy a new car;
There are also certain secrets to cleaning the engine. In the care products departments, special brushes are sold that will help clean different parts of the motor without damaging the fragile material. It should be noted that in AEG, Solis or Unit coffee makers, the motor has several compartments, each of which is cleaned separately.

Video: Delonghi Coffee Maker Repair

Very interesting to read: Image - DIY krups nespresso coffee machine repair

The other day it happened that my capsule coffee machine Krups KP 1002 (1006/1009) (description of the coffee machine), sold under the Nescafe Dolce Gusto brand, stopped working. The breakdown was expressed in the fact that the machine did not pump water from the tank and, accordingly, did not pour coffee. A characteristic feature of this breakdown was also the changed sound of its operation. Instead of the usual loud noisy pouring of coffee, the coffee machine barely grumbled. Yes, and more - not long before that the coffee maker also began to leak.

Turning on - turning off the Krups KP 1002 from the network, pressing all the levers and buttons, I was already resigned that the coffee machine broke down and it was time to throw it away. However, an inquisitive mind sent me to the Internet, where I read that all modern coffee machines must be descaled. For one thing, the coffee machine must be in working order.

To be honest, the water in our area is pretty bad. After the filter, a lot of limescale remains in the kettle. Perhaps this is the reason why my Nescafe Dolce Gusto no longer pumps water. As it turned out later, I was right. The reason that the coffee machine broke down was precisely the scale. An indicator that you have the same problem is the increase in the coffee preparation time. It takes longer and longer to cook. These are all symptoms of the same disease and you urgently need cleaning to help prevent repairs. But more on that below.

I will not tell you how I tried to clean the typewriter. Later it turned out that everything is very simple. Therefore, I offer you a ready-made repair manual right away, if your coffee machine no longer pumps water, does not pour coffee.

Now we take our wire and start pushing it into the metal tube. It will not go well because the pipe is clogged. The repair consists in the fact that we clean this tube with a wire with our own hands. Twist it there, push it and see how it slowly crawls inside.

Important! Take care of your eyes. Once you start the cleaning process, move your face to the side, here you only need your hands.

A little effort and you will break through the limescale.Your success will be evidenced by the steam escaping from the tube.

Hurray, almost a victory. Almost, because you need to do a complete descaling to remove its remnants.

Please note, this is not a repair - this is a regular maintenance procedure for the coffee machine. Scale builds up in the coffee machine constantly. Therefore, it must be removed periodically so that the coffee maker does not clog or break. Descaling is very simple. We dilute two teaspoons of citric acid (sold at any grocery store) in a glass of water. Pour into the tank of the coffee machine. We do not put the capsule. And in the same mode as we prepare coffee, we run this solution through Nescafe Dolce Gusto. We repeat the procedure two times.

To avoid the taste of citric acid in the coffee after cleaning, pour a full tank of clean water and run the Krups KP 1002 (1006/1009) again in the coffee preparation mode.

Everyone, congratulations. Cleaning and repairs completed. The machine pumps water again and pours coffee. Unfortunately, this will not stop water flowing from it, alas, this is another problem. Yes, the most important thing is to remove the useful wire in place so that you don't get lost 🙂

Important! If you suddenly notice that over time your coffee machine has become slower to make coffee, this means that the pipe is again clogged with limescale. Clean again and the problem is gone.

Yes, one last thing, do not try to reuse already punctured capsules. The machine will not make coffee out of them. Put in a new capsule and the coffee maker will work as it should.

Operating instructions for the Krups xp4000 coffee machine with pictures in English and Russian in pdf format download.

One of the brands of coffee machines is the German company krups. The Krups xp4000 coffee maker is positioned as a semi-professional coffee machine for making espresso and cappuccino coffee. But the machine prepares these two types of coffee very professionally thanks to the high pressure pump that raises the water pressure to 15 bar. The essence of the method is simple - first, a heating element (heat-electric heater) is heated, then cold water is passed through it. The water heats up quickly and is discharged through the coffee tablet into the cups. Usually coffee is brewed in Turks, but this is not the case here.

Outwardly, the croup looks bulky and angular.

The label in the form of a sticker tells that the product is made in China. The company itself krups is located in Germany, but like many companies is trying to reduce production costs by assembling and manufacturing parts in China. Voltage 220 V indicates that the product is made for Europe. The power of the heating element is 1.3 kW. In standby mode, the machine will suck a lot of electricity. All energy is spent on maintaining the temperature of the heating element at the same level.

When inspecting the machine, everything seems to be clear and there is no need to expect surprises from the filling. But a complete surprise for me was the presence of a circuit on the mikruhe at the bottom of the xp4000. The circuit, although placed in a niche, is not protected from moisture ingress. The main purpose of the circuit is to turn the pump on and off. The circuit is not capable of more.

The circuit was clearly soldered by hand by Chinese specialists. It is strange that many of the details overlap. Either this is how the Germans design and imagine the future of cybernetics, or this is a Chinese self-propeller. The quality of the soldering leaves much to be desired and the board is practically non-repairable. The question was the 2P5M thyristor to control the activation of the pump. But although the thyristor controls the turn-on process, it cuts off part of the lower half-wave. In this case, the voltage peaks do not decrease, but the voltage form itself turns out to be asymmetric, which, in principle, is not a buzz. Datasheet for the applied thyristor 2P5M in pdf format download.

There are letters denoting it under the sticker on the mikruh. The marking is very strange. In other words, a thoroughly Chinese microcircuit.

I soldered the thick diode myself, not the manufacturers. In addition, I evaporated the thyristor itself.

Disassembling krups xp4000 is quite simple - there are many screws, but all are unscrewed.All self-tapping screws for a positive screwdriver (cross), but the very first four from the bottom cover are a head with an asterisk. Made by a Chinese specialist so that housewives do not open it. The assembly is more difficult - trimming in plastic and each must fit into its own groove. The main part of the coffee maker is a heating element heater, combined with a water distributor. The handle switches the direction of the water and closes the limit switches.

The heater is equipped with heating sensors and a thermal cutout. The fuse is crammed into a white thermotube. By the way, all wires are heat-resistant, i.e. their insulation does not withstand the standard 65 C, but a little more - 150 C.

The sensors are sharpened for a certain temperature - they turn on and off the heating element.

The power button is embedded in a plastic holder. By the way, I could not remove the button from the holder. The button often wedges, but this is often solved with the help of VD-40, a screwdriver and a hammer.

The pump is small and powerful. It is better not to disassemble the pump if the system is not leaking. The fact is that the pressure in the system is high, but sealing the joints is quite difficult work.

The inlet pipe is put on the flask. A container with water is inserted into the flask. This is where problems often arise. The flask is inserted, but no water flows to the pump. The easiest way is to insert the flask once, and then simply pour water into it without removing it. Most likely, it was not without design problems.

Initially, the coffee maker was in standby mode and maintained the temperature in the heater. Then cotton was distributed and water flowed out of the container into the sump. Then the pump turned on. After turning the coffee machine off and on again, the pump did not turn off, but continued to work. No water was pouring out. I had to disassemble the whole machine. The scheme on krups xp4000 was not available on the network and I had to draw everything from nature with pens.

The "Start" button turns on and off the machine from the network. A temperature cutout "t" protects the entire system against fire and uncontrolled heating. Temperature sensors "T1" and "T2" maintain the temperature of the heating element at the same level. Motor "M" - pump motor. "Mk" - microswitches on the heating element itself, which are pressed by the rotary mechanism for selecting the operating mode. Arrows indicate connection to the board.

After sketching the diagram, it became clear that you can do without a control board. One wire connecting the heating element and the normally open contacts of the limit switches is disconnected from the heating element and connected to the pump. The wire connecting the pump and the normally closed contacts of the limit switches is removed. The pump is connected via a diode to the neutral mains wire.

I did not put a diode. Let the half-waves be symmetrical.

That's all the improvement. After all the transformations done - rearranging the wires and completely removing the control board, the coffee machine started working. The pump works stably, the temperature of the heating element is maintained at the proper level. The pump control board is bolted to the cost and adds significantly to the cost.

Coffee makers of various types are permanently operated equipment. If the coffee machine breaks down, the schedule also changes. It is difficult to work in the usual rhythm without drinking your usual morning coffee. The reasons for the breakdown are different, from an unsuccessfully purchased model to poor maintenance of the unit. Most faults can be rectified by yourself. If the control unit breaks down or the board burns out, you cannot do without the services of the service center.

The simpler the mechanism, the less malfunctions it can have. Repair of drip coffee makers consists in flushing the filter mesh from accumulated oils. When using tap water, the tubes become clogged with scale. It is enough to buy a special product and, according to the instructions on its packaging, rinse the drainage system. It is not worth saving and replacing the special composition with vinegar. Soon he will have to change the gaskets, which he will corrode.

When the drip coffee maker has stopped heating, you need to check the wire and contacts. If they are in order, then the heating element has burned out. Replacing it will cost more than buying a new coffee maker of the same type.

Most of the problems with capsule coffee makers are related to coffee pills:

incorrectly inserted;
other firm of the capsule;
the lever is weakly pressed.

It is necessary to buy only tablets of the same brand as the coffee maker, carefully throw their piercing mechanism and press the lever rather sharply. If this does not help, the mechanism should be disassembled and cleaned.

In carob models, sealing is most often violated. Water begins to drip from under the horn. The reason is the O-ring is dirty, or it is destroyed. The ring must be rinsed. Replace if cracked. You can not put car pads, and from washing machines. In them, rubber has a different composition, it is toxic to food.

Spout leaks are more common in DeLonghi coffee makers than others. There is no need to rush to the service center, repairing a Delongy model coffee machine with your own hands is quite simple. A detailed description with diagrams is in the technical passport for the car.

Each model has its own weak points. Clogged filter becomes the most common cause of malfunctions in the machines "Saeko Minuto", "Roventa", "Nescafe Dolce Gusto", "Krups».

Changing the high pressure pump is most often necessary for Vitek coffee makers. The coffee starts to flow poorly and does not brew well.

Coffee machines "Saeko", "Delong", "Philips" have a complex electronic system and a drive that is sensitive to voltage surges. They have disposable overload protectors inside them. When there is a power surge in the network, protection is triggered, and they no longer start. Dismantling and replacing the fuses of the Saeco Minuto espresso machine with your own hands is possible if you have spare parts and knowledge of electrical engineering.

The main reasons for the breakdown of coffee makers of all types are the same:

filters are clogged;
use of untreated tap water;
power surges;
neglect of equipment;
lack of regular cleaning;
wear of parts during long-term operation.

If the coffee maker breaks down, you need to disassemble it, rinse and clean it, check the integrity of all seals and parts. After that, in most cases, the unit starts to work.

Before repairing, you should analyze the type of failure, and the possibility of self-troubleshooting in the Dolce, Delong and others devices.

To repair Saeco coffee makers, be aware that the casing cannot be disassembled. The cover is secured with several screws. First you need to remove it, then dismantle the teapot and other units through the top. It is inconvenient to do this, it is necessary to put screwdrivers and various stops.

The main reason is that the filter is clogged or an air lock has formed in it. If your pump works and no water flows, try fixing it yourself. You need:

Open the lid of the water tank. Pull out the filter carefully. On some models, you need to slide the release latch.
Clean the filter.
Turn it upside down with the inlet and outlet tubes. The filter is completely filled with water.
Fill the tank and refit the filter under water.