Coffee machine repair

Many lovers of aromatic coffee buy a coffee machine for their convenience in the kitchen. Unfortunately, there are situations when the equipment, for obvious reasons or without, fails. Repair of the coffee machine can fly into a penny if you turn to specialists for help. And what about independent repair? Can a kitchen unit be set up without specialized knowledge? This article discusses the main types of breakdowns and possible solutions to the problem.

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Typical coffee machine design

In order to navigate the breakdown, first of all, you need to familiarize yourself with the internal structure of household appliances. The design of the device is not difficult for those who have an idea about the operation of such devices. And some of their parts can be found in washing machines, irons, electric kettles. Let us consider in more detail all the basic elements of a coffee brewing machine.

Engines and pump

This device has two engines, and sometimes three. For household appliances - this is almost a record:

• The servo drive of the coffee grinder is located under the compartment into which coffee is loaded. Depending on the model, it may have a speed controller.
• The second drive is used to rotate the connecting rod, on which stands a cup of ground coffee.
• The compressor of the coffee maker creates a pressure equal to 15-20 atm. At the inlet to the boiler, a check valve is placed, and at the outlet, a bypass valve.

Coffee dispenser

The process of brewing coffee from beginning to end looks something like this:

1. Directly from the millstone, brown powder is poured into a horizontally standing cup, which is placed on a vertical connecting rod.
2. After grinding, the appliance engine stops, the servo drive of the coffee supply system is turned on. He bends the cup on the connecting rod and pushes it up to the infusion tank.
3. Then water is supplied to the boiler from below and flows out through an opening in the brewing tank.
4. The coffee feeder moves the cup down. A tablet drops down a road through a special slot.
5. After this, the bowl returns again under the millstone to prepare a new portion of the aromatic drink.

Important! If you don’t even think for a day without a fragrant cappuccino or espresso, you should definitely be interested in our review of the best varieties of coffee.

Coffee machine boiler

This part consists of two halves connected by a large number of bolts through the gasket. The walls of the boiler are profiled. Thus, the tank can withstand a lot of pressure. The heater is located outside, not inside, which helps to extend the life of the device.

Important! Water for making coffee is heated up to 95 degrees. Steam is needed for a cappuccino, so the boiler heats the water to 127 degrees.

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Major damage to the kitchen appliance and coffee machine repair

Consider the main problems that may arise during the use of a kitchen unit for making coffee.

Water leak from the horn

Such a malfunction is not considered a serious damage. It can be easily repaired with your own hands.

Most likely, the cause of water leakage where there is a docking of the case and the horn is a clogging of the sealing ring at the junction of the coffee machine body and the “nose”. Dirt can have a different nature: wet meal, fat deposits, foreign objects, coffee and the like. Damage to the seal may also be the cause.

Important! The reverse situation - when the coffee machine does not pump water, it occurs due to a malfunction of the piston, which is located above the brewing unit. You can also try to configure it yourself after a thorough visual inspection.

Troubleshooting:

• To bring the device into working condition, you just need optimal maintenance of the coffee machine. To do this, clean and thoroughly rinse the contaminated area, and then reassemble the horn.
• If the seal is torn or cracked, then it should be replaced with a new one.

Important! A new o-ring must necessarily be exactly the same in characteristics as a damaged one. If you just pick up the part only in shape, you may encounter the fact that the rubber will not withstand high temperatures.

• It is also worth checking the horn filter before installing a new seal. Perhaps it is clogged with coffee deposits, respectively - the breakdown occurred precisely due to clogging.

Important! Similarly, you can replace any other oil seal that does not cope with tightness. As soon as you see that water has run out of the appliance, immediately find the reason for this and fix the problem until the water gets into the wiring and the electronic unit.

The appearance of extraneous noise from the inside, pressure reduction from the horn

If during the operation of a kitchen appliance you notice that water does not flow well from it and at the same time a whistle or noise is made, it is most likely that a filter or a mesh in the horn is clogged.

Troubleshooting:

• The mesh and filter must be washed. Mumps can be quickly removed with a toothpick. And for the full cleaning and maintenance of the coffee machine, there’s special remedies for fats. 

Important! The main thing is not to scratch or damage the internal capacities of the unit, as this will cause a delay in ground coffee and contribute to the fast clogging of the machine.

• You should also check the grinding size of coffee beans, because the cause of the blockage may lie in this. If your appliance allows you to adjust the grinding size yourself, do it.

Important! One of the causes of the buzz and noise of the coffee machine during operation and poor water release is the wear of the internal mechanism of the pump. In this case, the repair of the coffee machine comes down to replacing the pump.

Extraneous noise and complete lack of operation of the device

Such a breakdown may have several reasons.

Option number 1

If the appliance draws water and warms, but does not dispense coffee, then the cause of the malfunction is the formation of an air plug.

Corrective action - let hot water through the cappuccino maker. Such actions should eliminate the malfunction.

Option number 2

If coffee flows from the spout of a kitchen appliance in a weak stream, this indicates a clogging of the nozzles.

Troubleshooting - Rinse the entire system with special-purpose detergent.

Option number 3

Damage to the electronics can also cause this behavior of the coffee machine.

In this situation, it is not recommended to repair the coffee machine yourself. Therefore, it is better to take the device to a service center, where it will be brought into working condition.

Important! The electronic block about the clogging of the system should signal on its own, giving an exclamation mark or error on the display, described in the operating instructions.

Buttons do not work

If the device does not respond to button presses, then there may be several reasons:

• First of all, you should check if there is coffee and water in the respective tanks. Most modern devices in the idle position do not turn on.
• Carefully inspect the display. Remove the front panel, ring all the buttons with a multimeter for power.
• Sticky buttons can occur due to inaccurate handling of the machine - as a result of the fact that they were filled with coffee. You can remove sticky residues with a cotton swab dipped in alcohol.

Important! If all the above steps did not lead to the desired result, and the coffee machine still does not respond to button presses, then you should seek specialized help from the master. The reason may lie in the malfunction of the electronic control unit.

 

no power

If the coffee brewing machine does not work at all, that is, it doesn’t react at all to the network connection and pressing the buttons, the display of the device does not light up, then the reasons can be either simple or requiring specialist diagnosis.

Troubleshooting:

• First of all, check the integrity of the device cord and the presence of power in the outlet.
• Check if the coffee machine door is closed. Most devices of a modern type have protection against switching on when the brewing unit door is open. Perhaps the equipment does not turn on for this reason.
• If you did not find any visible reasons, then you must proceed to disassemble the case. You should ring all sections of the circuit, starting from the power cord and ending with the elements of thermal protection with a multimeter.
• If the malfunction was not detected, it is better to take the coffee machine to a service center for diagnosis and repair.

The appliance does not see coffee

Sometimes it happens that the machine does not see the coffee, although it is poured into the appropriate tank. This happens for the following reasons:

• defective engine or coffee maker with a funnel;
• the control unit has broken.

Debugg:

• If during the inspection you find that the mechanism inside is covered with coffee dust, it means the cause of the breakdown in the broken coffee maker, as a result of which the coffee dust fell into the engine compartment. Repair of the coffee machine in this case comes down to replacing the engine.

Important! Often, such a replacement is impractical due to the high cost of parts, and it is easier to buy a new device.

• Lack of coffee can be a consequence of clogging of the brewing device or too little grinding of coffee beans. To get started, try installing a slightly larger grind on the coffee machine and clean the brewing unit.

Knocks an error on the display

If the indication on the front panel lights up or the device gives an error, then first of all, refer to the instruction manual of the device. All possible errors, the reasons for their occurrence and methods of repair should be indicated there.

Debugg:

• You can try to completely clean and flush the system. Often, these actions help fix the problem. And you can easily cope with it yourself if you choose the coffee machine that suits your model from our ratingdescaler.
• Check that all containers are fully inserted and that the float in the water tank works.

The water in the coffee machine does not heat up

This problem is very common in similar devices. It is zealously discussed in all kinds of forums. Water does not heat up to the desired temperature and does not brew coffee well. The cause of this behavior of the device may be a breakdown of the heating element. In addition, the heating level may not be as required due to a malfunction of the controller.

Debugg

All you can do on your own is to ring the TEN with a multimeter and the controller. This will allow you to find the faulty part of the network for its further replacement.

Important! The poor quality of drinking water, namely increased rigidity, also often causes poor heating of the liquid in the coffee machine.

The cappuccinator is out of order

If the cappuccino maker breaks down, the appliance does not whip the milk and does not turn it into milk foam. As a rule, the reasons for this are the poor quality of milk or the clogging of the air channels that create the foam.

Debugg:

• Use only non-powdered pasteurized milk with a fat content of 2.5 to 3.5%.
• Maintenance of the coffee machine should include regular cleaning. After each preparation of cappuccino, rinse the cappuccino machine with clean water for 2-3 minutes.
• If the coffee machine does not suck in milk when the corresponding mode is activated, it is recommended to check the milk supply system for clogging and the pump.

Important! Most modern coffee brewing units have an automatic wash function. If your appliance does not have one, then do it yourself. Do not use sharp or hard objects when flushing the air ducts. This can damage the hole and the cappuccino maker may stop working at all.

The filter in the water tank is dirty.

Replacing the water filter must be carried out very carefully, because incorrect actions can lead to the formation of an air plug in the system, idle operation of the pump and its subsequent failure.

Important! The idle operation of the pump can cause the noise of the coffee machine without its subsequent operation.

Filter coffee machine maintenance:

1. Turn the filter upside down with the inlet and outlet.
2. Fill it completely with tap water.
3. Pour water into the appropriate coffee machine container.
4. Complete the installation.

Water is not displayed

If the device does not respond to water with a full tank, then the problem is a malfunction of the float sensor.

Troubleshooting:

• You can check the health of this element in this way: pour water into a container and see if the float floats up. If it does not rise, it is probably clogged or flooded with water.
• Clean the working area of ​​the float and dry the sensor itself. If such actions do not lead to anything, then replace this element with a new one.

Important! The reason for the ingress of moisture inside the float may be that hot water is poured into the coffee machine. Such actions are contraindicated for the coffee machine.

The pressure gauge broke

During operation of the coffee machine, the pressure control system may fail.

It is necessary to clean the tube that goes to the pressure gauge.

Important! If such actions have not led to anything, then you should replace the manometer with a new one with exactly the same characteristics.

The coffee machine does not grind grain

There are situations when the appliance refuses to grind coffee beans, and because of this it cannot brew normal strong coffee.

Troubleshooting:

• Disassemble the housing and thoroughly clean the coffee grinder. As a rule, such actions immediately solve the problem.
• If the coffee grinder does not trap grains, then the degree of grinding should be adjusted.
• If even after this the machine does not process grain, it is better to contact the master.

Coffee capsule problems

Sometimes there are problems with the fact that the capsules or tablets do not pierce. In this case, you do not need to repair the coffee machine, but practical advice regarding the correct location of the capsule.

You must drop the pill so that it falls flat on the piercing surface and then press the lever. Even a slight skew can cause the mechanism to cope with squeezing or ejecting the capsule.

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Stock footage

It is not always possible to independently diagnose and fix a breakdown in a coffee machine. If you are lost in reasons or are afraid to even make a simple disassembly of the case, it is best to immediately contact a service center where they provide full service for coffee machines. Non-serious breakdowns can be fixed quickly and inexpensively, but you can’t deal with more global ones anyway.