The dishwasher saves time and effort, but does not always cope with its “duties”. If the dishwasher does not wash the dishes well, the cause of the malfunction may be incorrect or too active use of the device. In most cases, problems can be determined independently, but sometimes the help of a professional and the replacement of components are still required.
Incorrect use of the dishwasher
Why is the Bosch dishwasher washing dishes bad? The reasons may be commonplace (and the same for different brands of equipment):
- overloading the machine (next time you can try to put less dishes and kitchen utensils with the same amount of detergent to fix the problem);
- food leftovers and dried up food particles (you need to remove everything from the dishes before starting the cycle);
- improper mode (short and economical programs are suitable only for light pollution, and fat requires a long cycle at maximum temperature);
- improper use of dishwashing or maintenance products (only special products should be used: tablets and rinses; the manufacturer indicates the recommended amount of chemistry for one washing cycle on the packaging).
If the observance of the operating rules did not lead to a positive result, then most likely you will have to get to know better the internal structure of household appliances. Some problems appear with the active use of the dishwasher and can also be successfully solved without masters.
The appearance of scale on the details of the dishwasher
Why is the dishwasher washing dishes badly? The reason is often limescale, which appears due to the use of too hard water. Even special softeners, which manufacturers recommend using, do not help. Scale is not visible on plastic parts. Appearing inside, where the components are metal, scale prevents the flow of water with a soapy solution, which is why dishes are poorly washed. To fix the problem, you need to pour citric acid in the dishwasher instead of a special detergent, and then start the idle cycle at maximum temperature.
Clogged filters of different types of cleaning and sprinklers
Particles of napkins, food debris, and other small debris that inevitably get inside kitchen appliances are another common reason. The dishwasher does not wash dishes well in this case due to clogged internal coarse and fine filters and sprinklers. Perhaps you just need to clean the filters. Henceforth, you will have to do this quite often - preferably after each wash, as manufacturers recommend.
Other possible problems with the dishwasher
Why is the dishwasher washing dishes badly? To make the dishes shine clean, it is often enough to replace the detergent. Do not use the cheapest means of a little-known manufacturer - the quality of such washing powders or rinses is very doubtful. You can try to change up or down the amount of powder for dishes or rinse aid. This is especially true if white stains remain on the dishes. Smudges can also appear due to the fact that the lid of the salt container is not tightly screwed.
Why is the new dishwasher washing dishes poorly? New kitchen appliances are unlikely to have much time to scale or break, so the solution to the problem must be sought in something else. Why a dishwasher does not wash dishes well can only be understood from my own experience. You need to try to replace the detergent, adjust the dosage, thoroughly clean the drum and filters, put less dishes in the basket or adjust the washing mode.
Proper dishwasher care
The dishwasher requires regular and gentle care. After each cycle, it is necessary to clean the tank of plaque, check the filter and water sprinklers, and at least once a week - clean the main filter installed on the bottom of the tank. After completing the program, it is necessary to check the equipment for the presence of food particles that can accumulate under the door or in the tank of the machine. Pollution during active use only accumulates, and then the device not only begins to wash dishes poorly, but also an unpleasant odor appears, which is very difficult to remove.
Violation of the rules for loading dishes into baskets
Often the problem is the incorrect arrangement of dishes in baskets. Care must be taken so that the kitchen utensils at the bottom of the basket do not block the flow of water to the top. Dishes should not interfere with the opening of the detergent drawer and the rotation of the sprinklers. Too dense placement of the contents interferes with the normal circulation of water, so dishes may not be washed. Manufacturers sometimes give different recommendations (based on the features of a particular device), so the rules for placing kitchen utensils should be read in the instructions.
Technical malfunctions requiring replacement of components
Why is the dishwasher washing dishes badly? Kitchen appliances may not sufficiently clean the dishes from pollution or even interrupt the washing cycle for the following reasons:
- breakdown of the water heating device (TENA);
- malfunction in the circulation pump;
- sprinkler impeller breakage;
- malfunction of the temperature sensor;
- breakdown of the turbidity sensor.
Damage to the water heater in the dishwasher
Ten is necessary for heating water, therefore, more than other parts it is prone to scale formation and breakage during prolonged use. If the water heater breaks down, the water does not heat up, and the equipment does not wash dishes well, because most of the impurities cannot be washed with cold water. In this case, it is necessary to replace the heating element. The work of the master will cost from 1800 rubles and above, the cost of the part depends on the model of the dishwasher.
Circulation pump malfunction
Why is the dishwasher washing dishes badly? Water may not enter the tank. This happens when a pump that circulates water fails. In this case, the washing process does not start at all or the program suddenly stops at some stage of the cycle. Necessary repairs - replacement of the circulation pump. The cost of the work of the master is approximately 2 thousand rubles or more.
Sprinkler impeller failure
The impeller rotates the water spray. In the event of a breakdown, the sprinklers stop rotating, due to which the dishes are poorly washed. Only one sprayer or several can fail. In this case, it is necessary to replace the part. The cost of work - from a thousand rubles or more (plus the purchase of a new impeller or several). Do not try to save money and change the part yourself. Firstly, it may turn out that the problem is completely different. Secondly, without experience it is hardly possible to install the impeller or other spare part correctly. A qualified master will diagnose and replace the necessary part quickly and efficiently.
Dishwasher thermal relay malfunction
The temperature sensor measures the temperature and sends the received information to the control unit. The program module further gives the command to heat the heater. If the data from the temperature sensor are not read, the water ceases to heat up to the required temperature, and the dishes are poorly washed. It is necessary to replace the temperature sensor to fix the problem.
Damage to the turbidity sensor in the dishwasher
Such a problem can occur only in expensive models of kitchen appliances. Most dishwashers are simply not equipped with such a sensor. The turbidity sensor transmits information on the current state of water to the software module. If the water is still dirty, the dishwasher continues the washing cycle. When the sensor breaks down, the software no longer receives information about the current contamination of the dishes, so it cannot complete the cycle correctly. Replacing a part will cost about two thousand rubles or more (only the work of the master without taking into account the cost of materials and components).
Failure or malfunction of the software module
Why is the Electrolux dishwasher washing dishes poorly? Most of the listed problems affect any brand of kitchen appliances, but some models have “weaknesses” that users pay attention to. For the “Electrolux” machine, for example, this is a spontaneous freezing at some stage of washing, breakdown of the control unit, pressure switch and intake valve.
The software sends the appropriate commands to the technical nodes. If the part fails, then the dishwasher completely stops working or functions incorrectly. The required repair is a “flashing” of the module or replacement of the control unit completely. There is no way to cope with this problem on your own, so you have to call the wizard. Estimated cost of work - from 2500 rubles. Additionally (if necessary) you need to purchase a new software module. The cost of the part depends on the model of the dishwasher.