Do-it-yourself vitek coffee machine repair

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

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:

Video (click to play).

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.

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 departments of caring products, 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: Most of the problems arise from the fact that a modern coffee brewing machine is an extremely technological device, the operating parameters of which are precisely calculated. Therefore, any violation, whether it be hard water, capsules not recommended by the manufacturer, or other grinding of grains, make it necessary to repair the apparatus or understand how high-pressure systems work. But most of the simple problems can be fixed at home as well.Consider how to repair a coffee maker with your own hands.If it is decided to independently investigate the coffee maker and carry out repairs, then it is worth taking basic safety measures:

The device must be disconnected from the network.

You need to work with a tool with insulated handles.

Water and wet hands are potential hazards.

Disassembling the body of most coffee makers is not difficult. Often it is enough to unscrew a few screws on the back cover. This makes it possible to gradually disassemble the device into units or large parts. At the same time, there are subtleties: in Delongy's cars, the bolts located on the lower part are closed with plugs or are under the rubber feet, and many Saeko models additionally require the removal of fasteners to remove individual blocks that open access to the areas needed for repair.

Vitek VT1513 Coffee Maker Pump

To carry out maintenance or repairs, you must first disassemble the device:

The top aluminum lid is removed where the cups are located.
The fastening screws hidden under the rubber pads are found.
Self-tapping screws are removed, the back cover is removed, giving access to all nodes.

Potential breakage areas can be seen immediately. High pressure tubing - hard, thin. The feed selector is a small plastic block that the distributors fit into. The blower is a round metal pump. To repair the Vitek coffee maker you will need:

Assess the condition of the high-pressure pipes, check the places of their fixation - there should be no looseness, cracks.
Check the condition of the blower housing. Splits or traces of overheating indicate a possible pump malfunction.
Inspect the condition of the feed switch.

If, after assessing the reliability of contacts, the problem is still not clear, carry out the following operations:

Clean the high pressure pipes. For this, you can use thin rubber tubes or a single-core wire with soft insulation. There is also a special tool - a flexible brush.

Check fasteners and contacts, remove all dirt.

Clean the filters.

After that, the coffee maker starts up and is re-checked for the operability of the nodes. By the way, the most common accident is crack in switch, it is determined by the presence of water on the surface of the part. The damage cannot be sealed (pressure will squeeze out any sealant). Therefore, it is worth replacing the block or just melting the crack, heating a knife or screwdriver on the gas burner. Image - DIY vitek coffee machine repair

Breakage of the Vitek VT1513 mode switch

If disassembly, cleaning, visual inspection of the coffee maker did not allow to localize the problem, most likely, the matter is in the blower, and it is necessary to call a specialist.

There are many common breakdowns. It is not difficult to repair them with your own hands. For instance:

clogged filter

Oxidation of contacts became more and more common, as manufacturers began to save every penny in production. Obligatory cleaning and regular checking of contacts is the key to the successful operation of the coffee maker.

Failure of the heating element... Repairs in this case must be carried out by a specialist. Since there are models of coffee makers, the heating element of which cannot be dismantled without damaging other parts. The cost of work and the purchase of a new spare part will cost more than a new device.

The main part of the repair is a thorough cleaning of all nodes and contact groups. Without carrying out this operation, there can be no question of any thorough testing of the electrical parameters of motors, temperature sensors, electronic units. These actions will be ineffective to say the least.

Each coffee maker comes with an instruction manual. It describes the typical problems of a particular model and provides ready-made recipes for solving them. Often these are instructions like "the coffee maker won't turn on - check the wire." Yes, the integrity of the power cable, the absence of scuffs, fractures, mechanical damage - this must be checked without fail.

However, the general principle of repair is reduced to moving from simple to complex. Something does not turn on - the functionality of the button is checked, the cleanliness and reliability of the contact. The operating parameters do not correspond to the expected - the regulators and sensors are closely examined, cleaned, lubricated, if necessary, replaced. To eliminate common malfunctions of coffee makers, you need to act on the principle of a thorough inspection of parts for damage, full service of all filters, pipes, contact groups and sensors.A coffee maker is an indispensable device in modern life, but the complexity of its device implies strict adherence to the manufacturer's recommendations. In order to constantly enjoy a fragrant drink, use coffee of the correct grinding, a certain type of capsule, and also periodically service the machine.Whatever type of electric coffee maker we would not consider, the electrical circuit diagrams of these devices are identical or have a slight difference in such diagrams.The photo shows an image of a drip coffee maker.Russel Hobbs drip coffee makerThe principle of operation of these coffee makers (Fig. 1) for various similar types is arranged as follows:When the heating element of the heating element is connected to an external source of alternating voltage, the water is heated to a certain temperature. The coffee maker is turned off by a circuit breaker. The circuit breaker is a thermal contact, changing the position of the bimetallic plate under the influence of temperature.Under vapor pressure 3, the liquid is displaced through a siphon into a container with a filter and from this container the liquid dissolved coffee is dripped into container 6 for further pouring coffee.As a visual image of the heating element, a photograph of the Elektrolux EEA 110 coffee maker is presented. Image - DIY vitek coffee machine repair

Heating element of the heating element of the coffee maker Elektrolux EEA 110

The body of the heating element is collapsible and, if necessary, the heating element of the coffee maker can be replaced.

The reasons for the malfunction for this type of coffee maker in the electrical part - there may be a malfunction:

electrical cord wire break;
wire break in connection with the plug;
heating element;
switch;
thermal contact circuit breaker;
connecting the plug to the outlet when the plug does not fit snugly into the outlet

and other reasons for the malfunction.

Diagnostics for all elements, as well as wire contact connections:

with heating element;
LED indicator light for turning on the coffee maker

and so on, - you can hold a probe to establish a break in the electrical circuit of the coffee maker.

The principle of operation and the electrical circuit of the Turk's coffee maker is indistinguishable from an ordinary electric kettle. Here, as in the electric kettle, there are such elements as:

circuit breaker;
a heating element;
light.

For comparison with a Turkish coffee maker, a schematic representation of an electric kettle is shown in Fig. 2. The principle of operation of this type of coffee maker is the same as that of an electric kettle.

A common cause of malfunction for such a heating device as a coffee maker is a breakdown of the circuit breaker.

And as for all heating devices, for a coffee maker - a Turk, there may be a place for the causes of a malfunction:

burnout of the heating element;
circuit breaker malfunction;
switch button malfunction;
malfunction of the power cable of the electrical cord

A significant difference between electric coffee makers such as:

electric drip coffee maker;
capsule coffee maker;
electric coffee maker - Turk,

- for their electrical circuits, consists of the resistance of the heating element Fig. 3.

Electrical diagram of the SAECO coffee maker - and its structure

fig. 4 "electrical diagram of the SAECO coffee maker"

The schematic electrical diagram of the SAECO coffee maker consists of the following elements:

power switch;
indicator light for turning on the device;
temperature indicator light;
noise suppression filter;
switch;
delivery pump;
protective shutdown of the pump;
fuse;
a heating element;
thermostat coffee mode;
thermostat mode par.

The mains switch is designed to turn this appliance on and off without disconnecting the mains cable from the electrical outlet.

Illumination of the indicator light, which is a lamp with two electrodes, notifies the inclusion of the electrical appliance.

Two indicator lamps are connected in parallel in an electrical circuit. The thermostat serves for timely shutdown of the electrical appliance upon reaching the preset steam temperature.

An interference suppression filter prevents both voltage surges in the electrical network and ensures smoothing of high-frequency network surges and creates reliability in the operation of this electrical appliance.

The principle of operation of the Vitek coffee maker

The device and principle of operation of the Vitek coffee maker is shown in Fig. 1. It is distinguished from other coffee makers by the fact that this coffee maker has a pressure pump and a boiler, which generates steam.

device and principle of operation of the coffee maker

A portion of water from reservoir 1 with the help of injection pump 2 is supplied to boiler 3, in the boiler the water boils and vaporization occurs.

A heating element is installed in the boiler itself. Boiled water 4 enters the filter with ground coffee 5. To prepare cappuccino coffee, a pipe 6 with a steam tap 7 is installed, through which a steam-water mixture is supplied from the boiler.

For coffee makers with an average power consumption, the power of heating elements is 1 - 1.2 kW.

For preventive purposes, for the trouble-free operation of the coffee maker, descaling is carried out every two months. The resulting scale is removed with an aqueous solution, in the proportion - two teaspoons of citric acid to half a liter of water.

Of the possible breakdowns of the coffee maker Fig. 4, the following reasons may occur:

oxidation of the contacts of the mains switch;
oxidation of thermostat contacts coffee mode;
oxidation of thermostat contacts; steam mode;
blown fuse;
burnout of the heating element;
oxidation of switch contacts;
oxidation of the safety shutdown contacts of the pump;
faulty noise suppression filter.

Coffee machine diagnostics

Diagnostics for establishing a break in the electrical circuit both for the entire circuit and for individual sections of electrical circuits is carried out either with a probe or with a multimeter.

The variety of modifications of the performance of the probes is large and the choice of this tool is usually selected taking into account our specialization, for example, for electrical work, repair of household appliances.

Devices such as "Multimeter" also have different designs, in particular, the photograph shows a device that has a wide range for measuring resistance.

The essence, of course, is not this for our topic - the essence is the ability to correctly use these devices. All this comes to us over time, with practice and spending their free time reading technical literature.

To let us check the heating element with a probe, there is nothing complicated here. To do this, you need to touch the fingers of one hand to one contact of the heating element, take the probe with the other hand and touch the second contact of the heating element. If the heating element is working properly, an electrical circuit is closed on the probe, the LED lamp of the probe will glow.

To directly measure the resistance of the heating element with the "Multimeter" device, you must first set the device to the resistance measurement position, connect two wire connectors to the sockets of the device and touch the two contacts of the heating element with two probes of the device.

If the heating element is working properly, - the device display will indicate the presence of a resistance corresponding to this heating element.

Do-it-yourself coffee maker repair - problems, we disassemble it ourselves.

The coffee maker only prepares delicious coffee when it is working properly. Some operational problems may not affect the operation of the appliance itself, but will always affect the taste of the finished drink. There are a number of coffee maker malfunctions that you can fix yourself without contacting a service center.

How to start DIY repair

As with anything else, when repairing a coffee maker, it is important to first identify the problem. With regular use, the most unexpected failures are possible. Therefore, before eliminating the malfunction, the coffee maker must be disconnected from the mains, make sure that there is no hot water in the tank.

Possible manifestations of problems

Hot water, even if it is filtered, still leaves mineral deposits on the parts of the coffee maker. The more there are, the more this affects the taste of the finished drink. To get rid of this malfunction and prevent its occurrence, the device must be cleaned once a month. You can rinse the device with special descaling agents. Of the effective home remedies, experts recommend using acetic acid.

Important! Sometimes the taste of coffee does not change due to malfunctions in the coffee maker, but due to improper storage of the product. Coffee must not be stored open or allowed to come into contact with other products. After all, grains perfectly absorb other tastes and odors.

It happens that very little water flows out of the device, or it does not flow at all. Most often this is due to a blockage in one of the tubes. Aluminum heating tubes are often clogged. To fix the problem, you need to pass vinegar through the coffee maker (do not put filters, coffee). Rinsing is done several times until the water is poured in the right amount. After cleaning, it is necessary to rinse the tubes several times with clean water (do not put filters, coffee in yet).

Too much or little coffee

Many modern appliances have a function to control the amount of brewed coffee. This is a useful feature, thanks to which you can not only brew yourself a cup of drink in the morning, but also take some of it with you in a thermos. Therefore, if the function is available, you need to check its settings.Also check the amount of water in the tank. For correct settings, you can use the instructions for the device, where everything is described in detail.

Not hot enough coffee

The problem in this situation is related to the heating element. It will be necessary to find a spare part to replace the coil. This repair process involves interfering with the internal structure of the coffee maker. Therefore, if there are no skills for such work, it may not be worthwhile to engage in self-replacement.

How to disassemble a coffee maker yourself

When you are confident in your abilities, you can try to disassemble the coffee maker and fix it yourself. It is important to remember that before starting the process, the device must be disconnected from the mains. Do not open the device in case of any breakdown, otherwise, the final repair by a specialist will cost more.

Stages of self-parsing:

1. It is necessary to unscrew the screws on the outer part of the case. As a rule, they are located on the back of the device and can be removed with a screwdriver;

2. There are screws that have no edges and look like bumps. They are unscrewed using pliers (you can turn back the usual screws for a cross-head screwdriver);

3. If there are latches in the case, they must be opened. This is done with a long screwdriver. Typically, these latches are located on the underside of the coffee maker;

4. When the case is open, you can begin to determine the malfunction. It is quite easy to find spare parts for imported devices on free sale. Most likely, you will still need to contact a service center for them;

Sometimes ground coffee gets into the gears of the electric motor and triggers the protection. To clean the coffee maker, turn it over, unscrew the screws and remove the bottom cover. Then clean everything with a vacuum cleaner, grease with grease.

When there are doubts that self-repair will lead to a positive result, it is better not to risk it. Many service centers refuse to repair a device that was previously disassembled at home.

For us today, a coffee maker is a completely familiar electrical appliance that helps us every morning to drink a glass of fresh hot coffee. But when it breaks down, we begin to realize our dependence on it. Then it will be especially useful for you to know how to repair coffee makers with your own hands. After all, you can repair it quickly, if you want it. I'll help you.

A modern coffee maker is simple in its own way. It should run hot water through the ground coffee, and then collect the finished coffee in a special tank and keep it warm until use. And so let's look at this process. A certain amount of water is poured into a special tank. A flexible silicone tube is connected at the base of the tank.

It goes to the base of the appliance, where it is connected to the metal pipe of the boiler. When water passes through the boiler tube, it is quickly heated by the heating element. The heated water enters the top of the coffee maker and then drips into the filter with ground coffee. Having passed through the ground coffee beans, water, or more precisely the coffee already enters the jug, which stands on the base on the heating plate. This process continues until all the water has passed through the boiler and the reservoir is empty.

Limescale often forms during operation of the coffee maker. Let's start with cleaning. First wash the jug, filter and lid in hot water and soap, then rinse and dry. Assemble the coffee maker and pour cold water into the tank. Turn on the device and let it pass through it. Pour out the water and repeat the process.

Descaling.

If the water poured into the coffee maker is hard, then you will periodically need to remove it every 2-3 months using a special descaling agent. To do this, fill the tank with a descaling agent diluted according to the enclosed instructions. Place the jug on the heating plate, do not insert the filter.Turn on the device to let the agent run for at least 1 minute, turn it off and leave for 1 hour to let the agent act on the scale. Then turn it back on and let all the water flow through the coffee maker into the jug. Pour everything out of the jug and rinse it. Pour clean water and turn the coffee maker back on. Let her rinse. Rinse this way at least two times. It is better to pour filtered water into the coffee maker, this will save you from the formation of limescale.

Now let's look at typical coffee maker malfunctions.

1. There are coffee particles in the jug.

In this case, check the filter for damage. Replace the damaged filter with a reusable one or use paper disposable ones.

2. It turns out weak coffee.

Check the proportions of water and coffee according to the instructions for the coffee maker. As a result of the deformation of the filter, the first drops of hot water can fold the filter so that water will not seep well through the coffee particles. Change the filter and try brewing coffee again.

3. Coffee is leaking.

This can occur if the jug is not stationary. A valve is installed at the outlet of the filter holder, which prevents coffee from flowing onto the heating plate if the jug is not on it. If you turn on the appliance and forget to put the jug on, then the valve may leak due to natural wear or simply not keep the increased pressure of the escaping coffee. In this case, immediately unplug the device from the mains. Blot the coffee from the heating plate with a paper towel and drain all the water from the tank. In this case, the coffee maker should be well dried, as insulation breakdown may occur and lead to damage and electric shock!

An incorrectly positioned jug on the heating plate can also cause coffee leakage. In this case, the finished coffee does not drip exactly into the hole on the jug lid, but flows down the jug onto the heating plate. To remedy, place the jug correctly on the heating plate.

If the valve is faulty, it will also leak coffee when the jug is not on the heating plate. To check, make sure that the valve lever moves without binding. Remove the lever and check if the valve is in place.

4. Water is leaking.

The cause of this malfunction may lie in a cracked or disconnected flexible tube. To check the tube, unplug the coffee maker from the mains, unscrew the screws that secure the bottom cover. On some models, the cover is secured with plastic clips. After removing the cap, inspect the tube for cracks and if it fits well over the heater tube. Leakage can come from a loose clamp or a crack in the tube. Replace damaged items. Assemble the coffee maker and fill the reservoir with water, place the appliance on a clean newspaper and check for leaks. If the leak persists, then the reason may lie in a crack in the water tank. Inspect it carefully and find the leak. The crack can be sealed with special food grade glue.

5. The coffee maker is running slowly and splashes.

This is most likely due to limescale and limescale deposits inside the appliance. At the same time, the water heats up slowly and circulation is disturbed. See descaling.

6. Water does not pass through the coffee maker.

In this case, make sure there is water in the coffee maker. Likewise, scale can completely stop the passage of water. Descale the coffee maker.

7. The coffee maker is completely out of order.

- First of all, check the presence of power supply for the operation of other electrical appliances. Perhaps the machine has turned off on the dashboard or the plugs have burned out.
- Check that the power plug is working properly and the fuse in it. (not in all forks).
- Check the power cord for an open. Most coffee makers attach the cord to the terminal block. Use a tester to ring the cores of the cord.
- Check internal wiring and tighten loose contacts.
- Check the thermostat for proper operation. To do this, carefully remove one wire from the thermostat using a screwdriver. Attach the test leads of the tester to the thermostat contacts.The tester should show a closed circuit. If it shows infinity, then the thermostat is under replacement.
- Check the thermal fuse for working order with a tester. It should indicate the presence of a chain.
- Heating element defective. Call with a tester, after removing the wire from one end of it. Often the heating element is made of a disk type, so changing it is not entirely economical.
- Defective power switch. Check it with a tester. Replace with good one if necessary. Read about refrigerator repair and do-it-yourself electric stove repair in the same blog. It is also useful to read posts on jigsaw repair, centrifugal pump repair and kitchen hood repair.
Video (click to play).

And finally, watch the video about coffee machines

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