Coffee machine krups EA 8010 DIY repair

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.

• 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.

Below we will discuss do-it-yourself coffee machine repair. Even if Solis is different from Nivona, and Melitta (Melita) is not very similar in appearance to Nespresso, the internal structure has common features, it will not be difficult to isolate from the story. We hope that the text, after being read, will allow you to repair the Jura coffee machine with your own hands, and will replenish the stock of knowledge of a novice master.

Before starting operations, read the error code. Download the repair manual from the Internet (if you are not at home). Decipher the designation.

Self-repair of a coffee machine requires a clear knowledge of the internal structure of household appliances. There is nothing complicated inside, some parts can be found in irons, washing machines, electric kettles. Do-it-yourself coffee machine repair becomes a really easy task when you realize that there is nothing complicated inside.

A kitchen coffee machine sometimes has two or three motors! A kind of kitchen record. The dishwasher, the washing one has one engine, however, the pump is worth it. Kitchen coffee machines are equipped with a device, you cannot give the device an advantage, consider it flawed. There is little electronics inside, but the power supply - the appearance - suggests that the motors of the kitchen coffee machine supply direct current, or regulate the speed by cutting the alternating current. Engines, pump, two or three in total:

1. The coffee grinder servo is located under the coffee loading compartment. It has speed regulation at times, we believe, is carried out by modulating the voltage amplitude. Brush motors are reminiscent of asynchronous motors.
2. The second drive is needed by a device called Brew in English. The ground coffee is poured into the bowl on the connecting rod. The millstone process ends, the container moves to the brewing site. The connecting rod rotates about the lower axis. The pressure is low, no sealing is provided.
3. The compressor of the coffee maker is capable of creating amazing pressure. 15 - 20 atmospheres. There is a check valve at the boiler inlet, a bypass valve at the outlet. Small container, a little water leaks out to brew coffee. It is possible that individual valves are electrically controlled.

They called the device for pumping water into the boiler a compressor, not a pump, piston structures are often found, which resemble fellows operating ordinary refrigerators. The pressure is impressive, surpassing the pump standing in the country. Repair of capsule coffee machines does not apply to both engines, coffee is ground, placed inside plastic containers.

The coffee is ground with burrs, the feeder moves the formed tablet in an arc to the brewing container. After the end of the process, the pressed cake is thrown into the trash can by the reverse stroke of the connecting rod. The unit is made of plastic, with a more complex structure. Let's describe the process of brewing coffee from start to finish:

1. The powder is poured into a horizontal bowl from the millstones. The container is located on a vertical connecting rod.
2. Grinding is over, the grinder motor stops, and the coffee dispenser servo takes over. Tilts the bowl on the connecting rod, starts pushing upward until it is pressed into the ceiling of the brewing tank. It resembles an internal combustion engine, where the piston moves all the way.
3. Then water is supplied to the boiler, enters from the bottom, flowing through the opening in the ceiling of the infusion tank.
4. The coffee spout moves the cup down. On the way, a tablet falls down through the gap. Then the bowl is returned under the millstones to prepare a new batch of coffee.

The boiler of a kitchen coffee machine is formed by two halves connected by a plurality of fixing bolts through a gasket. To withstand the pressure, the walls are profiled, reminiscent of an assembly from under the hood of a car, a motorcycle seat. The heating element is installed outside, extending the life of the device. Why disassemble the boiler. For cleaning, the descaler will not always cope with the build-ups automatically. The design is easier to manufacture, more durable.

Next to the heating element, look for sensors, a thermal fuse. Burning out, the elements deprive the equipment of working capacity, preserving the delicate filling.

There is a check valve at the inlet to the boiler, and a bypass valve at the outlet. According to the indications of the level sensor, water is pumped in by the compressor. Heating starts. For brewing coffee, a temperature of 95 ºС is better suited, after reaching the set parameters, the lamp comes on. When pressed, the compressor turns on, forcing the water through the bypass valve and the brewing tank into the cup. The flow meter regulates the time allowed to work for the compressor.

It requires steam to make a cappuccino, the temperature rises above the boiling point in the boiler of the kitchen coffee maker, amounting to 127 ºС. Switching the steam and water supply path is done manually, moisture comes out, bypassing the same valve. At a temperature of 127 ºС, the liquid quickly passes from the outside into a different state of aggregation. The water is no longer retained by the walls of the boiler. Due to the high temperature, the milk froths, the walls of the bubbles become hard (protein denaturation). The foam of the kitchen coffee machine keeps its shape.

To repair a coffee machine, know: the motors inside operate a similar scheme (rotation of the magnetic field vector). The only thing is that the servo-drive device of the coffee dispensing mechanism works in two directions. The motor needs a reverse, it is easier to accomplish by switching the windings. This is true for asynchronous and collector motors. The second type is preferable, the construction is more complicated. It is unlikely that a small compressor can accommodate a collector, but the other two engines are more convenient to build according to the scheme. Consequently, the power supply to the mechanics is supplied with alternating current. It will become obvious when analyzing the circuit. For example, the presence of Schottky diodes after the secondary winding of the transformer says: the current is delivered constant.

In the simplest case, the control is mechanical. The technicians themselves are amazed: in this respect, kitchen coffee machines differ little from irons and refrigerators. Inside the sensor is a bimetallic plate that measures the temperature of the boiler. Said above:

• For the coffee preparation mode, the water heats up to 95 ºС.
• For a cappuccino you need steam, the water temperature is 127 ºС.

The parameters are controlled by one sensor, the screw tension changes depending on the mode. When the temperature reaches the set value, the contactor is activated, the lamp of the corresponding button of the kitchen coffee machine comes on. After pressing the key, the compressor starts, forcing the boiling water in the desired direction, determined by the position of the handle. The regulator provides the required preload of the bimetallic plate mechanism, respectively, the sensor response temperature. Let's take a look at the steam preparation process from the inside:

1. The knob is turned to par. The outlet path from the bypass valve is switched. The water will flow in a thin tube, not into the brewing chamber.
2. At the same time, the preload of the bimetallic plate changes. The contacts are closed, the heating element heats the boiler water.
3. The temperature reaches 127 ºС, the relay opens the contacts of the spiral power supply, at the same time power is supplied to the lamp of the steam release button.
4. Pressing the button of the cappuccinatore causes an inflow of liquid into the tube, steam is instantly generated under pressure (inside the boiler 20 atm).