The hansa dishwasher does not clean well. The dishwasher does not wash dishes well: problems and solutions

After the end of the washing cycle, poor-quality washed dishes were found behind the hopper door - with plaque, food residues or soap suds? Common situation? Why did this happen and why does the dishwasher wash dishes poorly? The reasons for this may be simple to the point of banality, but a serious breakdown is not ruled out. Let's take a look at everything in detail.

PMM does not launder: incorrect operation

If the dishwasher has become poorly washed, first of all it is necessary to exclude factors that are not related to the breakdown of parts and systems. The reason for this may be a violation of the rules of use:

• There is food on the plates. If you are accustomed to saving dishes all day long and do not brush off the leftover food from them, then you can forget about high-quality and efficient washing forever. The manufacturer warns about this in the user manual - take a look at it if you don't believe it.

• Wrong program. If you have loaded a large batch of heavily soiled dishes and have selected the short or economy setting, don't be surprised if the machine doesn't clean well. These cycles are designed for washing lightly soiled dishes and utensils, as well as for refreshing dishes. In other cases, you need to choose intensive and high-temperature cycles.
• Bunker overload. The machine does not wash the plates if the baskets are crammed full of them. Unload the boxes, observing the distance between the dishes - perhaps this is the reason.

• Detergents. Another reason why the dishwasher stopped washing is the wrong selection of detergents or their required volume. Adjust powder dose or detergent, add a rinse aid or completely replace the means available in the arsenal.

If none of the above factors came true and you still end up with dirty or soapy dishes, you need to take the issue more seriously. You will have to understand the structure of the machine or contact the master. Although this is a last resort - most problems on early stage can be resolved without contacting service center.

Other Issues Requiring Immediate Resolution

The reasons listed below are often not related to a violation of the terms of use, or are related, but indirectly:

• Limescale or simply scale. This is the main enemy of technology that works with heated water. It's all because of the impurities that make tap water hard. Often, even special softeners and regenerating salt do not soften the impact of water on the inside of the dishwasher. The worst thing is that the raid is not visible - it is inside the PMM and slowly causes the car to break down. If scale appears on the impellers (sprinklers), then the water is sprayed much worse, which affects the efficiency of washing.

• blockages. It is difficult to fully remove all the remnants of food, napkins and other things from the plates - in this case they will have to be washed, but why then PMM? All this rubbish is collected by filters, and also falls on sprinklers. Therefore, if the dishes are slippery and unwashed after a dishwasher, check the filters. It is advisable to clean them after each cycle - this recommendation is even spelled out by manufacturers in the instructions.

If the amount of detergent is chosen correctly, you have thoroughly cleaned the utensils of dirt and cleaned all the filters, but the washing is still bad, it looks like a breakdown. What to do: how to detect and fix the failure? More on this later.

Possible problems: how to fix?

Consider the possible malfunctions in which the PMM may not be able to cope 100% with its main function:

Heating element failure

Each PMM is equipped with a device that heats water to the required temperature. Thermoelectric heater (TEH) is most prone to scale accumulation on its surface. The longer the overgrown heating element works, the sooner it will burn out. After the heater fails, the machine ceases to cope with the main function - and the quality of washing drops to a minimum, since it is difficult to wash something in cold water. In this situation, it is necessary to disassemble the machine body and completely replace the heater with a new part.

Breakdown of the circulation pump

The pump that pumps water into the dishwasher, if it fails, blocks the water supply for washing process hence the dirty, muddy dishes. The way out of the situation is to replace the part with a new original.

Sprinkler wheel problems

The impeller is a mechanism that rotates the rocker with sprinklers. In case of failure, the rotation stops (both one impeller and two) and the dishes are not washed well. The way out is to replace the impeller.

Temperature sensor failure

The temperature sensor (thermal relay) is used to measure the water temperature. The information received by the sensor is fed to the electronic module, which commands the heater to start heating. If the data is incorrect (or not supplied at all), the heating element does not start and the washing takes place in cold water - hence its low quality. The sensor needs to be replaced with a new one.

Malfunction of the control module

The task of the software board is to send commands to all PMM nodes. So, the module controls heating, draining and other processes. In the event of a breakdown, the board does not work correctly, causing a malfunction of the machine. In this case, the module must be flashed or replaced with a new one.

Turbidity sensor failure

This failure is typical only for expensive machines, the design of which includes a sensor that controls the turbidity of the water. It sends a signal to the board that if the water is not yet clean enough, the cycle should continue. If the sensor fails, the module does not receive information about the state of the liquid and the wash cycle does not work correctly. It will help to replace the sensor with a new one.

The reasons why the dishwasher does not wash dishes well, which affects this factor, are considered in detail. Listed possible breakdowns techniques leading to the presented problem.

Common Causes

Most housewives do not think about correct operation technology, which causes problems in the form of poorly washed dishes. If the dishwasher does not wash the dishes well, the following main reasons can be identified, the elimination of which will help to cope with the trouble that has arisen:

• hostess errors in operation;
• wrong;
• lack of timely cleaning of equipment;
• failure of a particular part or system of the machine.

Untimely cleaning of parts

Failure to clean dishwasher parts on time is the most common dishwashing problem. Here you should check each part separately for condition and appearance:

If you find that the dishwasher has become poorly washed, be sure to carry out a high-quality cleaning of the parts. If the situation repeats, pay attention to other reasons.

Use of poor quality cleaning products

Poor cleaning may be due to the use of ineffective cleaning products or the erroneous purchase of a fake brand. If the reason lies in this, then you will come across dirty metal dishes - pots and pans, due to their heavy pollution, will not be washed off, they will remain greasy.

In the question presented, you may encounter the following problems:

• There are stains on the dishes - the reason is an insufficient amount of rinse aid. The solution to the problem is presented in the form of regulating the supply of funds - it is necessary to increase the pressure, slightly, so as not to provoke its difficult flushing.
• White smudges remain on the dishes - this is due to the ingress of salt into the tank. Check if the compartment cover is closed properly.
• There are traces of tea, coffee or lipstick on the cups, which means there is no bleach in the product used.
• Plastic dishes are poorly washed - for it, a special component is added to cleaning products that allows you to wash plastic items without streaks. If the quality of washing is not pleasing, it means that there is no special substance in the composition of the product used.
• Dishwasher does not wash off dirt and cleaning agent well - here it is appropriate to make an unconditional argument in using an inappropriate composition, which is often simply not intended for this technique.

The solution to the problem related to the presented group of reasons is to change. In most cases, housewives face similar problems immediately after acquiring the composition of a new advertised brand.

Errors in operation

The dishwasher does not wash dishes well even if the equipment itself is used improperly. In this case, one can distinguish the following problems and solutions:

To eliminate problems related to the presented category, you should re-read the instruction manual for your dishwasher. Different brands and models differ in equipment, which means that their use entails compliance with certain recommendations.

Possible breakdowns

If the dishwasher suddenly began to wash dishes poorly, the cause of the problem may be hiding in a serious breakdown that needs to be repaired in a timely manner. To figure out which part has ceased to function properly, the following instruction will help:

• The heating element burned out - this is a special electric heater that provides timely heating of water. Due to the fact that it is constantly in contact with water, scale accumulates on it. The absence of its removal entails a breakdown of the heating element - often it burns out without assuming restoration or repair. If the reason lies precisely in the electric heater, the water in the dishwasher does not heat up, which means that all the dishes remain greasy.
• The sprinkler impeller has stopped working - this element is designed to spray water in order to clean all the dishes as much as possible. If the impeller does not work, then the water does not reach all surfaces, and the loaded remains unwashed.
• The water turbidity sensor has burned out - the system shown is available in modern models relevant technology. The operation of the system is to transfer the quality of the water to the module - if it is considered cloudy, the washing should continue, which is determined automatically. If the system fails, then there is no turbidity detection and the machine automatically decides to end the cycle upon completion of the program time.
• The recirculation pump has broken down - in this case, the equipment will not start its work, since there is no water supply during the presented breakdown.
• The thermal relay burned out - this system is a transmitter for the heating element about the intake of water in the car. The thermal relay at a certain moment gives a signal about the beginning of its operation and heating occurs. If the system does not work, the heating element does not turn on and does not heat the water.

The dishwasher may work poorly or stop altogether due to an error in the operation of the control module. In this case, the system does not give commands, which is why there is no collection of water or its heating. The presented breakdown requires serious repair with the involvement of a special programmer.

If the cause of dirty dishes or is the breakdown of any element, you should call the master. The specialist will immediately determine the cause and the out-of-service part. If necessary, they will immediately carry out a replacement, and it will be possible to use the equipment in the near future.

What to do?

Having analyzed all the possible reasons, you should conclude what to do if the dishes remain dirty. The sequence of actions of the hostess is as follows:

1. If the dishwashing detergent has been replaced, change it again with a new one or return the old one to use. Look at the changes that have taken place.
2. If the product has not been changed, purchase it again at another online store. Perhaps a fake was bought, so the composition does not contain the appropriate and necessary elements.
3. Increase the amount of rinse aid - this must be done every time the machine is loaded with a large number of utensils.
4. In the next load, immerse a smaller amount of dishes to eliminate the option of misusing the equipment.
5. Rinse all equipment - instructions for timely and proper care have been described above. It is important to descale the machine.
6. Experiment with the mode of operation of the equipment - due to constant operation, parts wear out and work no longer at the same productivity.
7. Check the sequence of the running program - as soon as the dishes are immersed in the tank and the program starts, water starts to fill. It should be checked for quantity, as well as for subsequent distribution over the entire surface of the washable elements. It is also necessary to check whether the water is being heated - heating element burnout is a common problem in the breakdown of equipment. Try to independently determine the cause of the breakdown in order to exclude possible other prerequisites.

If all the presented actions did not lead to a positive result - the dishes remain dirty after washing - contact the master who can identify the problem,. Timely replacement of one part will prevent other systems from breaking down.

Sometimes it happens that the dishwasher does not wash the dishes well, which is why stains or pieces of dirt remain on it. There can be many reasons why this happened - incorrect choice program, clogged filter or nozzle, broken pump or sensor. Sometimes self-troubleshooting is allowed, while in other cases only a qualified technician can fix the machine.

If, the indicators on the control panel do not light up or any part inside is faulty, this is a serious malfunction, for which you will have to call the wizard. There are models that can determine the type of breakdown themselves and show an error on the screen. The number of this error in the instructions indicates the problem and the solution.

When the dishwasher works normally, but does not clean the dishes well, you can solve the problem yourself. The manufacturer's instructions must be followed for the correct operation of this instrument.

Solving common problems

For daily, high-quality washing, the dishwasher requires regular maintenance, which extends its service life. Here is what you should pay attention to first of all:

• cleanliness of the filter and spray nozzles;
• the presence of salt in the water softening system;
• the presence of rinse aid in the dispenser;
• proper arrangement of dishes.

Filter clogged

A clogged filter is a common cause of machine malfunction. If water stagnates at the bottom or does not enter the circulation and drain pumps, you need to remove the filter, rinse it under running water and, if necessary, clean it with a brush.

It is important to install it correctly in place, without distortions and gaps, otherwise debris will enter the system, which will lead to serious damage.

Rocker nozzles clogged

Once a week, the upper and lower rocker arms should be checked. They act as sprinklers, rotating and at the same time spraying water from the bottom up onto the dishes. The nozzles through which water enters become clogged with food particles, and the liquid stops spraying, which is why the dishes are not washed.

To eliminate blockage, the rocker must be removed and rinsed with water, if necessary, cleaning the holes with a needle.

ran out of salt

For high-quality washing, the dishwasher needs soft water with a low salt content, otherwise on the dishes, the walls of the machine and during internal systems will settle limescale. This leads to failure of the heating element, poor quality washing, increasing the consumption of detergent. Water softening is achieved by removing calcium and magnesium salt ions. With increased hardness, these ions accumulate inside the softening system, which is why it needs to be updated regularly. This is done by adding special salt for dishwashers through the neck into the compartment for it.

The system must be adjusted according to the available hardness, the value of which can be obtained from the company supplying the water. You can also order an analysis in the laboratory or do it yourself using a special strip. Incorrectly set hardness parameters can affect the cleanliness of the dishes.

Out of rinse aid

Rinse aid is needed to dry dishes quickly. An insufficient amount of it leads to the formation of lime stains, and an excessive amount of it becomes sticky after washing, and a blue coating forms on it.

You can fix the problem by correctly setting the rinse aid flow using the regulator.

Stacking dishes

• laid too tightly, without gaps into which water jets should fall;
• the location prevents the rocker arms from rotating;
• dishes prevent the detergent drawer from opening.

Before laying, remove food residues from the dishes that can clog the filter, and dried dirt.

Heavily soiled dishes and pots should be placed on the bottom shelf, the rest on the top. The detergent should be of high quality, dissolve dirt and grease well, and the amount of detergent should be sufficient for the selected washing mode. The program is selected depending on the type of dishes and the amount of soiling.

When using gel or powder, you can choose short modes, and for tablets, a long mode is suitable so that there are no traces of tablets that have not had time to dissolve at the bottom of the dishwasher.

Serious malfunctions

The previous problems are fixed by hand, but if the dishes are still not washed, this may indicate a malfunction of one of the following elements of the dishwasher:

• In the event of a breakdown circulation pump water stops flowing into the rockers and splashing onto the dishes.
• When the water heater fails, the temperature of the liquid stops rising. The machine does its job cold water much worse than hot.
• A faulty thermal sensor does not transmit information about the temperature of the water to the processor, as a result of which the water does not heat up.
• Not all models have a water transparency sensor - it determines the purity of the liquid going into the sewer. Its burnout causes an incorrect one.
• Malfunction of the control module that controls the rest of the dishwasher, as a result of which the machine does not work correctly or does not start.

To fix such problems, you need to call a specialist from the service department. Only those who have the knowledge and experience should try to repair the machine on their own. Unskilled repairs can only end with the purchase of a new machine.

For long-term operation of the dishwasher, you need to monitor it, carry out maintenance, use high-quality detergents, salt and rinse aid. Only then will the machine provide clean dishes that look like new. And there will also be a lot of free time that you do not need to spend on washing.

The presence of dishwashers in the kitchen will greatly facilitate the work of any housewife. However, no matter how high-quality and expensive such equipment turns out to be, due to improper operation or for other reasons, it may not be able to cope with its main tasks. So what to do, the dishwasher began to wash the dishes badly, because of which such situations happen?

The most common causes of poor cleaning of dishes in specialized equipment: how to eliminate them?

If, after cleaning in Bosch, Electrolux or other brands of dishwashers, there are stains, food residues or other contaminants on the cutlery, then we can talk about both serious malfunctions of the unit and completely removable defects.

If the question arises as to why the dishwasher does not wash dishes well, then most often we can talk about completely banal reasons:

• The presence of dried food and significant food residues. If you do not remove all this from the cutlery in advance, then you should not even count on the perfect cleaning of the dishes. This rule is mandatory for all manufacturers, both Bosch and others. Therefore, it should be observed in the first place.

• Incorrectly selected mode of operation of the unit. Too short or economical dishwasher programs are intended only for minor dirt. But dishes with greasy residues need to use more temperature regime and long wash cycle.
• Significant overload of equipment. The dishwasher may not be able to cope with its main task due to the installation of more utensils than provided by the manufacturer. At the next wash, it is worth trying to load fewer appliances into the equipment. Also, insufficient cleaning from above can also be caused by improper loading of kitchen utensils. Incorrectly positioned appliances can interfere with the function important elements technology. In this case, you will need to restart the equipment in accordance with the manufacturer's recommendations, as shown in the photo.
• If the unit does not wash dishes well, then the reason for this may be an incorrectly selected or poor-quality detergent composition. In this case, the situation will be corrected by changing the product or using a smaller amount. Today there is a huge number of specialized products that are specifically designed for use in dishwashers. It can be both liquid gels and rinses, and multifunctional tablets.

In the case when all of the above attempts to remedy the situation did not help, the dishwasher from Bosch, Electrolux and other manufacturers continues to wash dishes poorly, which means that you will have to get acquainted with the functioning of such a unit closer. Certain reasons for such poor quality work may be associated with the intensive use of technology. But at right approach and they can be resolved on their own.

What are some other reasons why technology fails to do its job?

Frequent and prolonged use of the dishwasher can also cause it to malfunction. In this case, the equipment may fail due to more serious malfunctions:

• Formations on the scale unit. Such a process is especially insidious for any dishwashing equipment. Scale may appear due to the increased hardness of the water used for washing (and this is even if permanent application special emollients). Determine its presence plastic elements device is almost impossible, but all internal metal parts with prolonged use begin to become covered with such a dangerous coating. Having hit the sprinkler, the scale prevents the water from spraying properly, which in turn leads to poor cleaning of cutlery. To correct this drawback, you will need to add to the dishwasher instead of the usual cleaner citric acid, after which it starts at maximum temperature in idle mode.

• The appearance of blockages. If the Bosch dishwasher does not wash dishes well, food particles, stains and other contaminants constantly remain on it, then we can talk about the formation of blockages in the technique. Most often, this problem occurs with fine filters, as well as coarse filters. If this is the reason, then you should first check the condition of the filter. by the most the best option will be cleaning such an element after each dishwashing cycle.

If you still haven’t been able to independently determine why the dishwasher doesn’t clean well, then it’s best to seek professional help. In certain cases, we can talk about more significant breakdowns that require the replacement or repair of individual parts.

More details about possible reasons poor cleaning of dishes and how to eliminate them will help you find out the video.

If the BOSCH dishwasher does not wash the dishes, dirt remains on its surface, do not rush to contact the master. Perhaps the problem is in improper operation.

Before calling the service center, check the following.

• Is the mode set correctly? It is possible that the water temperature and washing intensity do not correspond to the contamination.
• Are you overloading the machine. If there are too many dishes, the washing quality will be poor.
• Do you leave food on the dishes. Leftover food should be thrown away, which is what the manufacturers warn about.

The reason for the poor performance of the dishwasher BOSCH machines maybe a low-quality solvent, dishwashing detergent. If you load too little or too much of the product, the equipment will not cope with the contamination or will not be able to wash away the remaining solution. It is important that a special composition is used. Regular dishwashing detergent won't work.

If everything is in order with the tool, and you follow the rules of operation, the problem may be a malfunction of one of the nodes. Can break:

Errors in the BOSCH dishwasher control system are also possible.

What to do if the dishwasher does not wash?

First, make sure you follow the rules of operation. Perhaps this is the problem: you send dishes with frozen food to the machine, overload the equipment, use the wrong mode or the wrong product. If you're following the rules, try to figure out what the problem is. In particular:

• failure of the heating element leads to washing with cold water. The water just doesn't heat up and the machine can't wash the dishes well. If the heating element is broken, the dishes will be cold;
• due to a pump failure, the washer does not start at all. Water does not circulate in the system, and the dishes remain dry and dirty;
• a failure in the control unit leads to errors in operation - the duration and intensity of washing do not correspond to the selected mode.

Once you understand what went wrong, you can more accurately describe the problem to the technician.

What repairs will be required if the dishwasher does not wash well?

The type of repair depends on the breakdown. So, it is possible to replace the sensor, circulation pump, heating element, flashing the control system, as well as other types of work. The exact cost and duration of the BOSCH dishwasher repair can be found out only after the diagnosis. It is carried out by the master who came to the call.

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