Dishwasher doesn't clean dishes well. Dishwasher does not wash dishes well - reasons

15.06.2019

Good day, our dear readers! Today we would like to tell you why the dishwasher does not wash dishes well.

If you notice on the washed dishes, taking them out of the dishwasher, smudges or the appearance of a film, food remains - you have a problem and you need to solve it. Let's figure it out Dishwasher doesn't clean dishes well.

Firstly. If there are food residues on the dishes, make sure you have selected the correct washing program. After all, the quality of washing in the dishwasher also depends on this. You may need to select a more intensive mode. The reason may also be excessive loading of the dishwasher, the presence of hardened or burnt food residues on the dishes. A clogged filter can also affect the quality of washing and leave streaks on the dishes.

Secondly. Smudges on dishes can be caused by lack of detergent, too hot or too cold. cold water, hard water. Of great importance is what detergents you use, whether you use rinse aid, dishwasher salt. You can not be limited to one tablet (powder) or tablets "all in one".

Keep in mind: there are dishes that are prone to staining on their surface (coating features) even when the dishwasher is running perfectly.

Another reason poor-quality dishwashing may be the wrong installation of the dishwasher. It is worth pinching the drain hose during installation, and dirty water will accumulate inside.

It happens that dishwasher doesn't clean pots, for example, heavily polluted. Causes? It is worth noting that heavily soiled dishes before washing in a typewriter should first be at least lightly rinsed under running water. In this case, the risk of clogging the filter in the dishwasher is reduced, and the quality of washing in the dishwasher is significantly increased.

In case when Dishwasher does not wash glasses well or does not rinse well, then you should pay attention to how you place the dishes inside the machine. Glasses and cups must be installed strictly upside down, a horizontal position or any other is unacceptable. It is also necessary to avoid a large pile of dishes, placing dishes "on top of each other", etc. Each unit of dishes should be placed in a separately provided place, only then the streams of water and washing mixture will freely fall on the dishes and wash them well.

If the dishwasher does not wash well and white coating on the dishes, then the reasons here might be:

out of dishwasher salt (add salt to special compartment)
poor quality tool dishwashers in the form of 3 in 1 tablets (you can try to replace the manufacturer or stop using the tablets)
poor quality rinse aid/conditioner (try replacing the rinse aid)
the dishwasher needs to be cleaned (dry start using special means for cleaning the dishwasher, which can be purchased in stores household chemicals or in large supermarkets of our city). By the way, such cleaning is recommended to be done at least once every six months or more often, depending on the frequency of washing dishes.
clogged filters (check filters)
the water hardness sensor has failed (replacement with a new one is necessary)

If the dishwasher does not wash dishes well or does not rinse well, a detergent If you haven't changed, your dishwasher filter may need to be cleaned. And it is better for diagnosing and accurately determining the malfunction.

In addition, multiple stains on dishes can be caused by a malfunctioning drying fan or heater. Dishwasher - indispensable assistant on the kitchen. But do not forget that some devices DO NOT wash in dishwasher. Among them:

fine Chinese porcelain - can crack at high temperatures;
lacquered products, real antique frosted glass, anodized aluminum - may change color;
hand-painted porcelain - strong jet hot water can wash off the pattern;
appliances made of bone or wood - can crack under water pressure;
iron pots and pans - can rust.

If you notice that the quality of your dishwasher has deteriorated, do not hesitate, call right now by phone in Kiev 383 90 60! Our dishwasher repair technicians will arrive at a convenient time for you and will determine the cause of your problem and fix it as soon as possible. Your dishes will shine again!

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 BOSCH dishwasher may be poor-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 to use special compound. 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 elements, 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.

Low prices

Service	Price
Diagnostics
When ordering a repair	Is free
Refusal to repair	1 standard hour
Full diagnostics of the product (operability check)	2 standard hours
Overhaul
Recirculation pump replacement	2.5 standard hours
Electric motor replacement	1.5 standard hours
Replacing the electrical harness	2.2 standard hours
Replacement of body elements	2 standard hours
Repair of medium complexity
Sealing or replacing pipes	1 standard hour
Replacement drain pump	1.2 standard hours
Elimination of blockage of the drain pump, hard-to-reach pipes	1.2 standard hours
Replacement solenoid valve	1.5 standard hours
Replacing the heating element	1.5 standard hours
Dryer Fan Replacement	1.9 standard hours
Replacing the level sensor	1.1 standard hours
Replacing the display unit, electronic module	1.7 standard hour
Electrical circuit repair	2 standard hours
Configuration (firmware) of the electronic unit	2 standard hours
Replacing signal lamps of the dispenser, front panel	1 standard hour
Belt replacement	1.1 standard hours
Shoe drying	1.5 standard hours
Drying heating element replacement	1.5 standard hours
Replacing the thermostat, drying timer, door lock	1.5 standard hours
Removing foreign objects	1.6 standard hour
Minor repairs
Replacing the hook, hatch handle, hatch fastening, glass	0.8 standard hours
Replacing the door seal	1.6 standard hours
Opening the door	1 standard hour
Replacement of the power button, capacitor, surge protector, power cord, repair of the KSMA indicator	0.7 standard hours
Replacement drain hose	1.2 standard hours
Aquastop (hydrostop) replacement	1.2 standard hours
Minor repairs (without dismantling the machine)	0.5 normal hours
Maintenance	1 standard hour
Related
Repair of nodes, modules	50% off new price
Installation-dismantling of the built-in device	1 standard hour
Cleaning the system	1 standard hour
markup ratio
Embedding	1,8
Premium Model	1,8
Urgent check out (within 15 minutes)	1,5
Cramped working conditions	1,5
Any repair associated with the complete disassembly of the product	2,5
Basic values
Standard hour (rounded up to the nearest half hour)	1000
Final provisions
● When repairing the control board, the master takes the board, after repair returns it and installs ● Spare parts and Consumables paid separately ● Departure outside the city - 40 rubles / km ● The master determines the final price of the repair, based on the complexity of the breakdown and the volume of work performed

Why won't the dishwasher clean? Did you load the dishes, run a wash cycle that ended successfully, but when you opened the door, you found the dishes dirty or not washed at all? Perhaps the dishwasher does not take out detergent or draws water, but does not clean the appliances. How to find and fix the problem, read the article.

First you need to understand exactly how the machine performs the cycle. Each sign can indicate a separate breakdown. Please note that your dishwasher:

Why did PMM start to work badly? The reasons can be varied, here are some of them:

errors during operation;
problems with water supply;
water does not circulate in the system at the proper level;
no detergent intake;
sprinkler malfunction (upper or lower).

Only a thorough inspection will help determine where the breakdown occurred. Let's consider everything in order.

Incorrect operation of the dishwasher

Each dishwasher (Ariston, Bosch, Kuppersberg) comes with instructions. The manufacturer really expects that you will read it, because most problems arise when the elementary rules for using PMM are not followed.

The arrangement of dishes in the baskets also matters. Here are the mistakes users make:

Put large dishes and plates in the upper section, and small cups and glasses in the lower. This blocks the access of water to the devices.
Place objects in the pan, near the sprinkler, which may block its operation.
Place the plates so that they cover the detergent compartment.

Important . The drain must be cleaned 1-2 times a month, and chemical cleaning cycles should be run every six months.

The reason that the equipment fills with water and does not work may be scale. Outside it is not noticeable, but inside it settles on metal parts. It can clog the nozzles in the rocker arm, blocking the water outlet. Therefore it is important to use special salt. It reduces the level of water hardness, and hence the amount of harmful impurities.

We fix problems in the PMM with our own hands

There are also more serious problems that need to be fixed.

No water intake

Why is the system heating the water but not washing the dishes? The control board "thinks" that there is water in the tank, because it receives such data from the pressure switch. As a result, the heating element is turned on for heating, but without water it overheats and burns out. So, you need to check the level sensor.

Watch your dishwasher work. If you see that the technique is working, but do not hear the characteristic murmur when water is drawn in, then you need to check the inlet valve.

What to do:

stop the program;
check shut-off valve;
check the valve.

Usually it is located below the front panel. But different manufacturers can place the valve on the side and back.

We will describe the general sequence of works:

shut off the water supply;
disconnect the inlet hose;
behind it is a valve;
check the electronic part of the part with a multimeter, connect the probes to the contacts and see the value;
if the valve is working, it will show from 500 to 1500 ohms;

check the mechanical part by applying voltage to 220 V; if at the same time the membrane opens, the part is working;
to replace, disconnect the hose and wiring from the valve;
set a new element.

Also check inlet hose and mesh filter. Cleaning is carried out under pressure from a tap.

Water does not circulate well, detergent problems

If there is a normal water intake, but the equipment does not start washing or does not wash off the dirt from the dishes, then the circulation system in the PMM is broken. Check:

Nozzles. Open the bunker, pull out the baskets. Remove the lower and upper spray arms. Clean the nozzles with a toothpick and rinse under the tap.
Circulation pump. The machine fills with water, but then stops. For diagnostics.

Important! The circulation unit (or engine) is an expensive part. Sometimes it is better to entrust the work to the master.

What do we have to do:

disconnect the PMM from the network and communications;
put in a free place and lay an old blanket (towel);
flip the case onto the back panel;
remove the bottom panel under the door;
unscrew the screws around the perimeter and remove the pan (preliminarily disconnect the float sensor, which is located on the pan);
in the center you will find a circulation block;

inspect the pump, ring the electronic part with a multimeter;
in the event of a malfunction, the element will have to be completely replaced.

If you are convinced that the water washes the dishes normally, but there are stains and food residues on the surface, check the detergent dispenser. Unscrupulous manufacturers make a cuvette from cheap material.

When exposed to hot steam, the plastic expands. Therefore, the compartment is jammed. The tablet does not dissolve properly. The way out is to replace the cuvette or adjust the compartment with your own hands.

Heating problems

Depending on the PMM device, a breakdown can manifest itself in different ways. In more modern models built-in temperature sensor that controls the heating temperature. If you set the program to 70 degrees, then when the temperature is reached, the sensor sends a signal to the module, which turns off the heating element.

If the heater burns out, then the machine (Bosch, Siemens, Ariston and others) draws water, starts heating and stops. Models without a sensor continue to work with cold water, so the devices are difficult to clean.

How to understand that washing takes place in cold water? Open the door after the end of the cycle. Walls and dishes should be warm. You can also feel the nozzle during the first drain.

Usually, a flow heater is installed in the machines, so in the event of a breakdown, you will have to change the entire unit. The sequence of work is the same as when replacing the pump. Only first you need to unscrew the fixing screws inside the camera.

When the equipment does not turn on and does not start, the matter may be in the control module. This is the most serious damage that you cannot fix on your own. The electronic board controls all processes in the dishwasher. You can check it, but it is better to entrust the repair to a specialist.

We have listed possible reasons deteriorating dishwashing performance. If you notice something like this, proceed to fix the problem. After all, why do you need a car that does not perform its main function?

A dishwasher helps in the kitchen, eliminating hours of dishwashing and making it shine. Some housewives are lucky, and their dishwasher works properly without any problems. Other owners of this technique complain that the dishwasher does not wash dishes well. The reasons for the latter may be different, in this article we will consider them.

Causes of Poor Dishwashing

Cleanliness of washed dishes is affected by several factors, which are described in the instructions for use. But some housewives do not consider it necessary to adhere to it. Of course, the first time the technique will work properly and show good results. However, over time, after such careless use, stains, white deposits, or even food residues will begin to remain on the dishes.

So, the reasons for the poor performance of the dishwasher may be as follows:

lack of timely cleaning of equipment and its parts;
the absence of special detergents when washing utensils in the car or their low dosage;

Important! It is very important to use quality detergents, so be sure to check out ours.

improper use of equipment.

Untimely cleaning of the dishwasher

Any kitchen appliances requires constant care and mandatory cleaning after use. If this care is not carried out, then the equipment will very quickly become unusable and cease to function.

The following parts should be cleaned regularly in the dishwasher:

bulk filter of coarse cleaning from large particles of impurities - once every six months;
filter at the bottom of the equipment from existing food residues - at least 1 time per week;
water sprinklers from possible blockages;
anti-scale heating element;
the inner case from plaque.

Important! The holes in the rocker arms, the heating element and the tank of the machine are cleaned at least once every six months by starting an empty machine using special detergents.

Operating errors

Answering the question why the dishwasher does not wash dishes well, one cannot exclude typical mistakes hostesses, which include:

incorrect arrangement and stacking of plates and cutlery in the basket;
a large number of loaded dishes;
wrong mode selection.

The main focus of the instructions for using the dishwasher is the correct arrangement of dirty dishes. Therefore, it is very important to familiarize yourself with it before using the technique, as well as read our following articles:

Important! The most important rule for washing pots and dishes in the machine is to arrange the dishes in such a way that the water flows down, that is, upside down. In addition, do not stack objects too close and overload the machine, you must leave enough clearance for water to enter.

Here's what else to pay attention to:

When arranging the dishes in the basket, make sure that the spray arms and the detergent compartment are not blocked by kitchen utensils. An unopened tablet compartment during the process is the cause of dirty dishes.
An incorrectly chosen washing mode will also not give you a good result. For example, the dishwasher will not wash dishes with dried food in the quick wash mode. A description of all modes and the corresponding degree of contamination are also set out in the instructions for using the equipment.

Dishwasher quality

Another reason for the poor quality of washing dishes and pans in the car is the low dosage of detergents. Most often this happens in connection with the change or purchase of a non-original tablet or powder. In this case, an effective cleaning agent is chosen simply by trial and error.

If there was no change of funds, and the dishwasher began to wash dishes poorly, then the reason may be:

A small amount of rinse aid, the consequences of which are manifested in stains on kitchen utensils. To fix the problem, you need to slightly increase the supply of funds in the settings.
The presence of salt in the tank of the machine, which can leave white smudges on pots and dishes. Check the tightness of the lid of the salt compartment of the dishwasher.

Important! Remember that a complete rejection of the use of salt is dangerous for the failure of equipment. The presence of salt is necessary to soften hard water, which can clog the ion exchanger.

A dishwasher is not as complicated a technique as it seems at first glance. Most breakdowns are caused by simple causes. To eliminate them, you do not need high qualifications or special knowledge. If the equipment is no longer under warranty, it is quite possible to try to repair it yourself. The main malfunctions of dishwashers and how to fix them will be described further. In most cases, the causes and methods of elimination do not depend on the brand of the machine. Bosch, Siemens, Samsung, Electrolux, Miele, Indesit, Candy, Beko - it doesn't matter. Repair is the same. The disassembly process, mounting, etc. may differ. But the basic principles for troubleshooting dishwashers are the same.

Dishwasher is every housewife's dream

To repair a dishwasher, you need to imagine the processes that take place in it. This is the only way to determine the possible causes of failure and eliminate them as soon as possible.

Let's describe general principle operation of the dishwasher. The algorithm of operation is usually the same for all manufacturers, although some changes may occur. Next, we will describe the longest process in time - washing dirty dishes with time to “sour” food residues.

As you can see, a large number of sensors are involved in the process. All of them can fail and cause damage. Filters, nozzles, sprinklers may also become clogged. All these are the causes of failure.

Breakdowns, possible causes, elimination

Many dishwasher failures can be fixed with simple steps. Often problems are associated with low voltage in the mains or low pressure in the water supply. A lot of breakdowns are explained by the fact that filters, grates, holes are clogged with food debris. All these reasons can be eliminated on their own, returning performance.

The dishwasher does not draw or drain water - you can figure out the reasons yourself

We check at the very beginning and if the PM does not start up

Many dishwasher malfunctions are due to simple reasons - a voltage drop in the network, insufficient water pressure, clogged filters, etc. At the very beginning, after we found that the dishwasher does not work or works with deviations, we check:

These are very simple steps, but it is for these reasons that the dishwasher often does not start up.

Water leak

Some dishwasher problems are related to water leakage. Then the dishwasher stops during operation and no longer responds to commands. One of the combinations also lights up, signaling a breakdown, but each manufacturer and even each model has its own. But the result is the same - during the washing process (no matter at what stage) the car stops and no longer responds to any signals. Sometimes it can be restarted. But after turning it on, it stops again.

The fact is that there is a leakage protection sensor in the pan - this is a polystyrene float. When water appears in the pan, it rises, the contact closes, which is perceived as an alarm signal. Everything is logical - if water appeared in the pan, then something is going wrong. This float prevents flooding of your apartment and neighbors from below.

Here are the possible causes of PMM water leaks:

Sometimes a water leak in a dishwasher is a consequence of a leak in one of the parts. Then you need to remove the back wall of the dishwasher, carefully inspect all the details. A leak may have appeared in the hose, the connection has lost its tightness, etc.

No drain

There are malfunctions of dishwashers of the opposite nature - the PM does not drain the water. There are other reasons here. This type of failure is often associated with a clogged drain or hose. Here's what it could be:

If the problem is clogging the machine, first of all we clean the drain and filter. Next, remove the pump cover. This plastic cover fixed with bolts (bolt). In some brands, it is fixed with latches. We clean the impeller and impellers (holes for spraying water). In general, we remove all residues and pollution that catch our eye. The cleaner the machine is, the less likely the next stop.

If you are repairing a dishwasher with your own hands and you have little experience in this matter, photograph the position of all parts and parts before you start disassembling the assembly. It will be easier to restore everything. Even if it seems that there is nothing to forget.

We put everything in place, turn on the car. The water flow should be restored. If not, the pump may be the problem. It does not pump water and should be replaced.

Water is not flowing or little water is being collected

Dishwasher problems are often water related. And one of them is not enough water. It may also be that the detergent is not washed off, it does not rinse well. All these dishwasher malfunctions can be caused by one reason - insufficient pressure. It is checked first. The pressure in the system must be above the minimum threshold at which the PM can be operated (available in the passport). If the pressure is normal, there may be the following reasons for this breakdown:

To make sure that the problem is in the water supply system and not in others, pour 4 liters of water into the machine, load some dishes and start it. If the machine does not wash, most likely the malfunction of the dishwasher is related to the control.

Washes badly

Sometimes, after some time after the start of operation, you notice that the dishwasher washes dishes worse. Such malfunctions are usually associated with a violation of the operating rules, but there may also be technical problems. So, what could be the reasons that the quality of washing dishes has deteriorated:

Dishwasher failures associated with deterioration in quality can also be caused by control failures. If you've checked all the possible causes and you don't see any improvement, follow the process. You may be able to understand why the dishwasher has become worse at washing dishes.

Knocks out automatic protection

Electrical faults in dishwashers usually appear after power surges. Then the control "flies out". Therefore, when installing, it is advisable to attend to the installation of a stabilizer. If not general - for the whole apartment or house, then at least local. This may be a low-power unit for connecting a dishwasher, or maybe a more powerful unit to which you can connect several electronically controlled appliances.

If you have a knock out when you turn on / start the dishwasher circuit breaker in the shield, the reasons may be the following:

TEN burnt out.
Closing the wiring inside the PM.
The seal is broken and water gets on the parts.
Voltage fluctuations in the network.

Finding the exact cause of most of these faults (other than seal failure) assumes you know how. Take wiring diagram dishwashers, first of all check the condition of the fuses, then move according to the scheme.

These are, perhaps, all the main malfunctions of dishwashers that you can fix yourself. If these measures do not help, you will have to resort to the services of specialists.