- Principle of operation of a coffee machine from Saeco
- Maintenance of coffee machines
- Repair of a Saeco
coffee machine Smart and sound technology of the Italian company Saeco, with observance of the elementary rules of operation, will serve with faith and truth for a long time. The products of the popular brand are distinguished by their excellent resistance to various problems. This applies to both electric samovars, kettles, and coffee machines. In addition, the whole year after the purchase of household appliances, the company provides warranty repair, which once again indicates the high quality of the products. However, over time, any mechanism may fail, so it is not superfluous to find out how to repair Saeco coffee machines and whether it is possible to do it yourself.
to the contents ↑How Saeco
works. Many owners of famous brands of coffee machines appreciate their performance and performance with dignity. The coffee machine is very comfortable, simple, does not create noise during operation and consumes a minimum of electricity. However, there is no perfect technique that would never break. Reasons for Saeco repair can be enough, for example:
- improper operation;
- is very hard water;
- low quality of grains;
- natural wear of friction parts.
Saeco Vienna
Before we begin to diagnose the problem and repair it, we'll figure out how the coffee machine works with the Saeco Vienna model.
Functional machines of this type are very wide, they are able to:
- Grind coffee beans.
- Brew coffee.
- Cooking milk froth for various drinks.
Important! With all the tasks are mastered the basic elements of technology, which need regular maintenance.
The main elements of the coffee machine are:
- Brewing mechanism. All Saeco coffee machines are equipped with removable tear mechanisms. This greatly simplifies the process of cleaning the element.
- Boiler. It is in it that water for drinks is heated.
- Hydraulic system of the machine.
- Capuchator. This device is designed for whipping milk and forming a delicate foam.
- Tray for drops.
- Container for used coffee.
Coffee dispenser is fully automated:
- Ground coffee falls on a flat bowl inside the cylinder.
- After the grinding is completed, a mechanical alarm is triggered and the servo drive starts working.
- The piston with the cylinder turns on its side and starts to move towards the stop, where the brewing of the drink will take place.
- At the end of the brewing process, the mechanism takes the opposite action. In this case, the sloping cover operates, which, becoming perpendicular to the movement, removes the tablet and resets it to the receiver for the waste material.
How does the pump and boiler work?
The water in the car moves along a very simple route: water is taken from the tank by a pump( at a pressure of 15-20 atm.) And enters the boiler. The boiler itself is round and consists of two halves, which are bolted around the perimeter. A heating element is attached to one part. Bimetallic plate serves as a temperature sensor, its tension is changed by a special handle. This is necessary in order to get the temperature for brewing coffee( 95 degrees), and to get steam, you need to have a temperature of 127 degrees.
To prevent water from returning back, there is a non-return valve at the boiler inlet. At the outlet there is a bypass valve, through which water flows for brewing, obtaining steam.
Important! The process of the water / steam controller determines which process will occur. It is enough to turn the regulator in the water or steam position and the bypass valve will work in the desired mode.
If you combine all the processes together, then the process of obtaining the drink looks quite simple:
- The pump pumps water from the tank into the boiler.
- The water is heated to the desired temperature.
- The bimetallic plate is triggered and the contacts of the heating element are opened.
- The warning light illuminates.
- Pressing a key allows you to get a ready-made drink or make a foam.
Maintenance of coffee machines
If Saeco repairs are performed in the event of breakdowns and malfunctions, then maintenance of the equipment must be carried out regularly. On this depends on the performance of the device and the quality of the drink.
In the process of using the apparatus, limescale is inevitably formed on the internal surface of the heating elements. In such cases, cleaning the machine is an absolute necessity.
Important! The procedure for cleaning the coffee machine is different from cleaning the kettles and irons. This is a more ambitious and time-consuming work that encompasses all elements of the apparatus.
To carry out the cleaning procedure, follow the recommendations of the specialists:
- Remove the brewing, rinse and install it back. This procedure does not require special tools and cleaning agents. You can clean at any time convenient for you, but regularly, because the purity of this element determines the taste of the drink.
- Use Saeco cleaning products or similar products from other companies to clean the boiler. The cleaning cycle can be either manual or automatic. Depending on the model of the machine, the machine control system will tell you about the need to clean the boiler - this can be a message on the display or an icon on the panel.
- The process of cleaning the hydraulic system of the machine is associated with the removal of coffee oils. Cleaning is performed automatically. To increase the effectiveness of the procedure, use cleaning tablets.
- The cappuccino must be cleaned in advance from the dry residue of milk. The frequency and complexity of the cleaning procedure depends on the model of the device. In any case, follow the manufacturer's instructions to clean this item.
- Rinse the tray and container for used coffee under running water. The main thing - do it regularly and in a timely manner.
Saeco
coffee machine repair If the coffee machine is used in domestic conditions, then Saeco overhaul may be required only after the preparation of five thousand portions of the drink. However, the lack of decalcification service may lead to failure, since in this case the heater inside the boiler may fail. But perhaps the most common cause of breakdown is the natural wear and tear of the device.
Important! According to the laid specifications, the main parts of the espresso machine after making several thousand portions of the drink, must be replaced. For example, the following elements are subject to replacement:
- Heating boiler.
- Coffee grinder.
- Brewing mechanism.
- Steam generator, etc.
Saeco coffee machine repair is complicated by the fact that the machine body is not folding. From the top you can remove the cover and unscrew a huge number of screws, only after that you can get the inside of the unit outside. With some breakdowns, the repair of the machine may take considerable time and only specialists from the service center can perform it, especially if it is a major overhaul and replacement of a large number of spare parts is required.
Dismantling the
The Saeco machine always begins with the dismantling of the machine.
Important! If you do not have a sufficient level of relevant knowledge, then do not even try to disassemble the machine. In addition, working with electricity is always a risk to life, therefore, during repair, you must strictly follow the safety requirements.
If you decide to identify the problem yourself and repair Saeco, then the order of disassembly of the coffee machine is as follows:
- Disconnect the machine from the mains.
- Open the front cover.
- Remove the compartment in which the waste and coffee dispenser are stored.
- Pull out the mug stand with the tray.
- Remove the water tank.
- Remove the container for coffee beans. It is fixed with two cross screws.
- Remove another screw under the water tank.
- Behind the bezel can be a deeply screwed down screw, if there is one - unscrew it.
- Pull the handle and remove the top cover of the machine.
- Dismantle the water hose that is attached to the top cover.
- Remove the front door with a screwdriver.
- Remove the entire unit from the enclosure.
Internal device
A coffee machine is quite a complicated device:
Inside there are at least three engines for which power is needed.
- The power supply unit itself is impulse. Therefore, the power supply of the transformer is through a power transistor, which, in turn, is controlled by a high-frequency pulse generator. Usually it's a small chip.
- The chip is fed from the diode bridge.
- At the entrance are numerous filters, consisting of capacitors, resistors and chokes.
- The fuses are not in the transformer circuit, but are powered through the varistors if the circuit overheats. The protective element, very often, is a low-resistance resistor, which burns out of increasing the current load.
Important! The voltage of the high-frequency generator goes to the power transistor, forming high-frequency pulses, which, passing through the transformer, are filtered and straightened. As a result, the primary winding is not driven by current, but by pulses of high frequency.
Diagnostics
In order to check all the elements of the power supply, special tools are needed. But sometimes you can determine the failure and not opening the case, for example:
- If the pump is running, and water does not go - most likely, the bypass valve has broken down.
- The unit does not turn on - a fault in the electrical part, that is, a problem with the power supply unit or the motor.
In any case, as soon as there are problems with the operation of the Saeco machine, immediately stop its further operation and contact the service center. Experts will conduct a thorough diagnosis of the device, identify and fix all problems. Masters are well aware of the specifics of maintenance and repair of this equipment.