A dishwasher is one of the main assistants in the household, which in endless bustle of the home eliminates the unpleasant and requiring careful work, and some time for washing dishes. That is why, when the dishwasher suddenly does not work for any reason or some kind of malfunction occurs - this is an occasion to worry and call the master at home, and sometimes go to the service center. What can cause a breakdown and how to deal with it?
Causes of dishwasher breakdowns
Unfortunately, even the most wear-resistant and durable dishwashers such as Bosch (bosch dishwasher”), The machine“ indesit ”,“ eyelid ”,“ electrolux ”and others can break. The following causes may contribute to the occurrence of malfunctions:
- differences in electricity (“leaps”);
- water characterized by hardness, that is, saturated with various small particles, for example, salts;
- poor quality household chemicals that are not suitable for a dishwasher;
- neglect of operating rules and dishwasher care;
- improperly installed dishwasher.
Basically, the dishwasher breaks down not due to malfunctions of any parts and mechanisms, but due to clogging of various filters, contamination of parts, increasing scale or adverse external factors (“surges” in voltage, weak pressure of water).
Therefore, it is imperative to carefully study the operating instructions to use dishwasher correctly. Also knowing how to work dishwasher, according to some indicators, you can independently understand what kind of malfunction occurred and why the work process was suspended. So, if a lock icon is displayed, this indicates that the door is not closed tightly, therefore bosch dishwasher does not pick up waterso as not to flood the room.
The dishwasher works by interacting with many different factors, therefore it reacts sharply to changes in external factors, thanks to sensors such as temperature, i.e. thermostat, water level, i.e. pressure switch, pressure, water purity and much more. If the sensor itself breaks down suddenly, the dishwasher may be suspended. Since the sensors work in dirty conditions, they are often polluted and, as a result, break.
If a breakdown occurs and the Bosch dishwasher does not work or the Indesit machine does not turn on, repair of the dishwasher, in principle, can be done independently. The only thing you need to do is know how the sensors interact, how the dishes are washing, and you also need to know thoroughly the internal structure of the dishwasher.
The structure of the dishwasher and the principle of the washing process
A powerful stream of water has tremendous power, so a good head is the main factor that ensures the cleanliness and brilliance of dishes, washing away food residues.
The dishwasher is made in such a way that it is possible to provide the necessary pressure of water, which will allow not only qualitatively washing away food residues and dirt from the loaded dishes, but also will treat it carefully without leaving any damage.Due to the fact that it is necessary to wash a very large area, several jets of water were made that evenly clean the dishes and other dirty dishes.
In order to achieve maximum cleaning, special devices (“rockers”) are built into the dishwasher. Due to nozzles, they rotate jets of water.
Poor cleaning dishes
Recently, more and more often you can find complaints from the owners of dishwashers that the equipment can not fully cope with its work, and it needs repair, since the output the dishes are not clean enough, and therefore it must be washed manually. The reasons for this may be different: the wrong mode was chosen, or the water temperature that does not meet the norm, breakdowns of the internal parts of the equipment.
In addition, the important point is that if the pressure of the water jets is not strong enough, food debris will not be washed off during the allotted time for the dishwasher. Also, the cause may be an insufficient number of produced jets or their speed will be insufficient, which means that the thrust will not be able to force the rocker arms to rotate enough, as a result of which, some area of dirty dishes will be uncleaned.
The reasons for the insufficient pressure of some jets may be the following:
- clogged nozzles;
- clogging in the filter area, as a result of which insufficient water gets into the pump;
- such a component as a pump impeller, which does not generate the necessary pressure, wears out;
- deterioration of one or more bearings or breakdown inside the engine, which leads to a decrease in the number of revolutions.
You can clean the nozzles with your own hands, in addition, this does not require opening the dishwasher. It is enough to remove one or the other rocker and with a toothpick or needle, carefully clean the nozzles.
The filters in the bosch dishwasher do not work: repair work
Each technique for cleaning dirty dishes, for its effective operation requires periodic cleaning of the filters. Dishwashers of various manufacturers have correspondingly different internal structures, and therefore, for proper and accurate cleaning of the filters, you must first carefully read the instructions, which describe in detail the rules for cleaning. Evidence that the filter elements really need to be cleaned is the accumulation of liquid in the dishwasher or even its leakage through the tightly closed door.
In order to completely clean the filters, first of all, it is necessary to remove a special metal frame from the dishwasher, where the dishes are usually located during the operation of the equipment. The filtration system consists of several different sections. A coarse filter in the form of a plate is located above, filters with small cells are located below. A layer of fat builds up on the filter with small cells.
If the filter is dirty, the pump pumps out water to a lesser extent than necessary, which reduces the pressure, so the dishwasher increases consumption due to water from the water supply. Excess water settles at the bottom of the dishwasher, and sometimes flows through the seal.
A very important factor in the proper operation of the dishwasher is the use of salt. Special salt in the container must be placed on the bottom of the dishwasher, which helps to eliminate grease in the hoses and various parts of the machine.
Prospects for alleged repairs
There are also cases when, after thoroughly cleaning the filters, the dishwasher refuses to work in normal mode. To understand what kind of repair is needed, you first need to find out what the problem is and what kind of breakdown has occurred. To do this, it is important to understand which stage of the wash was interrupted or skipped altogether.
If the dishwasher was suspended at any of these stages, then the breakdown occurred in the part responsible for this function or action.
Getting to know the trouble and error codes
Most modern equipment and machinery that are equipped with a microprocessor, using special error codes can identify internal damage. Therefore, in order to understand what kind of breakdown occurred, you need to carefully study the instructions. So it is quite possible to diagnose a malfunction without resorting to disassembling the housing of the dishwasher. Why a working dishwasher can not do its job well, why did not the signal work and show an error?
Here are the main breakdowns and the reasons why the dishwasher does not work:
- there is no water intake - problems with the electromechanical valve (characteristic buzz of the dishwasherthe valve may be stuck or its coil burnt, there is a possibility of a malfunction of the electronics);
- washing liquid is not taken from the compartment - the wrong mode is turned on, the tubes may be dirty, the valve has broken or the algorithm of operations has gone astray;
- the rocker arm with nozzles stopped rotating - the pressure is below normal, the nozzles are dirty, the accumulation of a layer of grease, scale and dirt on surfaces that are involved in friction;
- sudden stop of the machine - the filters are clogged, the engine is overloaded, the algorithm is lost, it is also possible that the safety pan that collects leaks is full;
- water does not drain - a malfunction in the pump, filters are clogged, or air pressure is observed in the sewage system that interferes with the discharge.
In fact, there can be much more of these reasons, and all the necessary information about the nature of the breakdown, the reasons for its occurrence and methods of elimination should be described in the instructions.
The dishwasher does not work: DIY repair
First of all, it is necessary to start troubleshooting with particular care. This item is very important, since it is not a good idea to try to fix which failure is not the best idea, since on the contrary, it can aggravate the situation. If the source of the malfunctioning of the dishwasher or even its malfunction is identified, then you can proceed with the independent repair. To do this, you must have a specific set of installation tools. Ordinary, curly, cross-shaped and hexagonal screwdrivers, wrenches of different sizes and pliers.
First, you must definitely push the dishwasher to look for niches so that you can get to all its details and from all sides.
A very important point, which in no case can be ignored: it is necessary to disconnect the dishwasher before starting to disassemble the case and repair parts in order to avoid electric shock.
Experienced craftsmen, when they begin repair work, begin with a search for minor breakdowns that are easy to fix and fix. These include unimportant contact, a failed cable, a compound that is susceptible to oxidation, and so on. When diagnosing electronic systems, this option is also possible and even recommended. First, you should carefully look through everything to fix the damage caused by exposure to high temperature, electric arc, if any.
Further, after fixing simple breakdowns, it is necessary to identify problems with those parts that are responsible for the operation of certain functions of the dishwasher. So, with the help of multimedia, you can check the solenoid valve coils, relays, semiconductor components, sensors, ring the electric motor, measure the voltage and so on.
In one article it is difficult to describe all types of breakdowns and malfunctions that can occur in a dishwasher of various manufacturers and brands, indicate all the reasons that contribute to the failure of the dishwasher, and ways to solve these problems. If you suddenly come across something similar, first of all, carefully study the instructions, you will find the answer there for many of your questions there.In addition, you can easily find any information on the Internet, now a lot of sites and forums have been created where experienced professionals and home craftsmen make their advice and skills for the repair of various household appliances, including dishwashers.
If even this does not help and the reason why the dishwasher does not work is not determined, then the best solution would be to call the master at home. He will not only certainly determine the cause of the breakdown, but also quickly eliminate it. In this case, you can be sure that the dishwasher will not break again after a few days.
In general, try to be careful and attentive to the dishwasher, follow all the rules of operation and care for it, which are indicated in the instructions, use high-quality household chemicals. This will not be difficult for you, but even on the contrary will make your life easier, because then you will forget what a dishwasher breakdown is. Proper care of household appliances is not difficult - it is difficult to repair it later, and sometimes, unfortunately, it is even impossible.
