Any technique that deals with the collection and discharge of water can fail, break down, and then there is a great risk of a “flood”. There can be many reasons for a leak in a dishwasher: sewer blockage, drain hose or filter, the pump or water supply valve has broken, and others. In most modern PMMs, there is a special system called Aquastop, which is designed to protect equipment from water leakage, regardless of the cause of the breakdown.
Waterstop - what is it?
The principle of operation of the dishwasher protection against leaks in all PMM is the same, the same design as in washing machines. The Waterstop system is simple yet effective. It consists of a pan with a control float, a microcontact, a hose and a safety valve, which is attached directly to the plumbing system.
When water enters the pan as a result of a malfunction (about 200 ml), the float rises and closes the microcontact. The access of electricity to the safety valve is instantly stopped, and it closes, thereby blocking the flow of water to the PMM. Thus, the protection against leaks worked. Along with this process, water is pumped out.
Leak Protection Types
There are two types of water protection:
- complete;
- partial.
Which one is better? Complete protection against leaks in the dishwasher provides for a pallet with a control float and a hose with special valve sensors at both ends. As soon as the float has worked, cutting off access to electricity, the valves close, cutting off the water supply to the faulty machine. This design works and avoids flooding both in the housing and in the event of a leak between the hose inlet and the water supply. The full type is more reliable.
Important: if the leakage is insignificant, then the system will not immediately work in dishwashers budget option or earlier models. In modern dishwashers, Aquastop works instantly.
Partial protection against leaks is presented only in the form of a pallet with a float. The float through the microsensor sends a signal to the control panel, and the emergency mode starts, the PMM is blocked. That is, the hose and the space outside the machine are left unprotected in the partial type. Thus, the answer to the question of which system is better becomes obvious.
Benefits of dishwashers with Waterstop
Today, there are practically no dishwashing equipment on sale without the Waterstop system. When buying a PMM, ask the seller what type of protection is present in the proposed models.
The importance and benefits of such a system from leaks in dishwashers can hardly be overestimated:
- in case of breakage and water leakage, your kitchen and floor will remain intact;
- it will not be necessary to compensate damage to neighbors in case of flooding;
- saving water, which simply overlaps when triggered;
- the ability to safely leave the PMM turned on at night or before leaving home;
- the ability to avoid even greater damage to the machine in the event of flooding and short circuits.
Protect yourself and your neighbors from unexpected flooding and damage to furniture with the Aquastop anti-leak system.
Water leakage protection will allow you to save a lot of money that will be required for the repair of your apartment and the apartments of your neighbors, who may suffer from water leakage as a result of a breakdown or damage to the inlet hose of the washing machine / dishwasher. To protect against the consequences of water leaks, it is necessary to turn off the water supply to the washing machine / dishwasher in time. But what if the accident happened in your absence? To prevent such a situation, a valve is installed on the water supply tap to the washing machine / dishwasher, which automatically turns off the water supply in the event of a water leak. The Aquastop safety valve automatically responds to pressure drops in the washing machine/dishwasher connection system. Unlike electronic leakage protection sensors, Aquastop instantly triggers when the pressure in the system drops, does not require special skills during installation, is easy to use, is much cheaper than its counterparts, and does not require an electrical connection.
AQUASTOP UDI valve - the patented protective device of the company YUDI LLC is a water leakage protection system designed specifically for automatic shutdown water supply in the event of water leaks in the water supply system associated with a break / break in the inlet hose of a washing machine or dishwasher.
| The safety valve AQUASTOP UDI is manufactured in three versions: | ||
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Fitting, art. UDI-AQUASTOP 3/4" |
Monoblock, art. 877 AQ siteS NEW |
Monoblock, art. 884 AQ sites NEW |
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Installation of AQUASTOP UDI fitting |
According to the results of research on sanitary fittings with a safety valve UDI-Aquastop, manufactured in Italy at the plant of Valvosanitaria Bugatti S.p.a., received Technical Conclusion No. 630 / 02.14 . Valves and fittings with UDI-Aquastop valve manufactured by Valvosanitaria Bugatti S.p.a. (Italy) recommended for installation when modifying water supply lines to household appliances such as washing machines and dishwashers . |
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NEW versions of the safety valve UDI-AQUASTOP(monoblocks "faucet + Aquastop") have distinctive features: The metal body of the Aquastop fitting and faucets is made of nickel-plated brass CW617N. the AQUASTOP valve is made in Italy specially by order of UDI LLC. Devices with built-in valve AQUASTOP UDI have no analogues, are easy to install, do not require complex installation work, work without external sources power supply and reliable operation. |
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AQUASTOP UDI: These videos demonstrate the operation of the AQUASTOP UDI protective device |
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| Tests on Channel One on the air of the program "Habitat: Rise of the Dummies" | ||
The study of taps and fittings with the UDI-Aquastop valve was carried out in the test center "Santekhoborudovaniye" JSC "NIIsantehniki", Moscow- the leading Russian research organization specializing in this industry.Recently, buyers of washing machines are interested in whether specific models have leakage protection. Their demands are quite justified, since a proper security system can protect their premises and the dwelling of neighbors from below from flooding. If you take care of security in a timely manner and select an automatic machine with comprehensive protection, you can minimize the risks of a flood.
Washing machines with a weak level of protection can lead to a real flood
Why is the washing machine leaking?
There are many reasons. Of course, they all come down to factory defects or improper operation.
The most common types of leaks are:
It is advisable to operate the machine correctly. For example, always check pockets, do not place more than the norm of dirty laundry in the tank, put clothes with metal objects in special bags, and also clean the powder receiver regularly.
But there is another simple way to protect yourself from all kinds of leaks - install special protection or choose a laundry device with a drip tray and shut-off valves.
What could be the protection?
Today, it is difficult to find a unit on the washing machine market that does not have at least some protection against leaks. Although, ten years ago, a lot of washing machines were sold, in which such an opportunity was completely absent.
The design of the washing machine with a protection system In the safety planets, there are 3 types of laundry machines:
- No protection.
- Partial protection (body only).
- Complete protection.
Lack of protection is characteristic of budget options washer. They are standardly equipped with a hose that draws and supplies water from water pipe. Such laundry devices may not have a bottom at all, or there may be a regular closure plastic panel. In the event that the hose becomes unusable (wears out or breaks through), all the water will spill onto the floor.
Therefore, after the washing cycle is completed, it is required to manually close the water supply tap or additionally install special valves.
But there is whole line washing machines, the manufacturers of which have taken care to minimize your hassle about installing a separate protection system.
Complete protection against leakage is available with such famous brands, as:
- Bosch;
- miele;
- Siemens;
- Electrolux;
- Zanussi;
- Asko;
- Ariston.
Interesting moment: Bosch washing machines are equipped with a double magnetic valve, which is located on a patented hose, consisting of two layers. If suddenly a machine with full protection against leaks when confirming the fact correct installation leaks, the manufacturer bears all the costs of repairing the premises in the event of a flood.
AquaStop protection Partial leak protection
Unfortunately, such a system will save only if you detect a leak in time. In the event that you are distracted by household chores or gone to the store, a flood can significantly spoil the renovation in your bathroom and neighbors' apartment.
Partial leak protection Partial protection against leaks involves supplying the washing machine with a special tray in which liquid will accumulate. During assembly, a float with an electric switch is installed in the plastic or polystyrene tank itself. Once a large number of water will fill the tank, the float will rise up and the switch will work. Then a signal is given to the electronics, after which the equipment switches to emergency mode - the washing process is completed, and the pump begins to pump out water.
But, as you understand, if you don’t notice the problem in time or if for some reason the switch doesn’t work, the water will overflow and continue to confidently flood the bathroom or kitchen.
Hoses with special valves for your safety
As we mentioned above, automatic machines with partial protection are called so because their security system works after the water gets inside. Imagine this situation: your hose breaks outside the washer? Of course, all the water from the intake sediment will immediately pour out.
Spring Hose In this case, it is better to protect yourself twice by choosing a machine with full protection against leaks.
There are several types of protection placed on hoses:
The solenoid valve creates a special barrier in case of unauthorized outflow of water. Defense mechanism fires when:
- hose breaks;
- the liquid just seeps out;
- the tank is leaking;
- foam comes out due to excess powder;
- pipeline is damaged.
AquaStop protection system: high level of leak detection
When choosing a washing machine, it is advisable to ask the consultant if the machine has full protection from leaks. She suggests:
You can go in a slightly different way. Purchase a laundry device with partial leakage protection and separately connect a hose with an electromagnetic system for shutting off the water supply when taken from pipes.
By giving preference to machines with an already built-in AquaStop system, for little money you deprive yourself of the problems associated with finding a quality fixture and installing it. It seems to us that this option would be more appropriate (although you should always compare the cost of the hose and its installation in advance with the cost of machines with partial protection, but with the same parameters as washers with AquaStop).
Important point: Comprehensive protection against leaks also provides for emergency pumping of water, which is triggered when, for some reason, closing valves do not come into action.
Self-installed protection system
If your washing machine is not equipped with a protection system, do not despair, because you can install it yourself. You should purchase the AquaStop system, which is produced by the Italian company OMB Saleri. The cost of the device is low - only a few thousand.
The water inlet hose is equipped with a special fitting that works in the event of a strong flood. If the water seeps out a little, then the mechanism will not be able to recognize the accident, and the valve will not close. So the risks are still there.
Aquastop protection There are also separate liquid sensors that can be placed in the bathroom. If water is detected on the floor, the sensor diodes send a signal to the controller, after which emergency overlap cold and hot water taps.
Additional fluid sensors 
The principle of operation of liquid sensors Thus, the safety system of the washing machine comes down mainly to protection against leaks. For this purpose, washing machines are equipped with special trays and valves that are supplied with the inlet hose. Leak protection can be full or partial. It is better to protect yourself and choose a washer with an integrated system equipped with a float pan and solenoid valves.
Finding a puddle of water under the washing machine is extremely unpleasant, because you will not only have to repair the machine, but also pay for repairs to the neighbors you flooded. However, in the case of water leakage, there is special protection and an aquastop system for a washing machine. The methods of such protection should be considered in more detail and understand the disadvantages of each of them.
Protection Options
All washing machines, depending on the presence of a protection system, can be divided into three groups:
- cars without protection;
- machines with partial protection;
- machines, completely protected from leaks.
Most of the cars in the low and medium price category are not equipped with leakage protection. What does this mean? And the fact that water is supplied to the machine from a water pipe through an ordinary flexible hose with special nuts at both ends. The bottom of such machines, as a rule, is absent or covered with a plastic panel. And if the inlet hose breaks, then all the water in such a machine will flow out onto the floor. AT high-rise building a similar situation leads to flooding of neighbors from below.
So for this case it is recommended to turn off the tap for water supply after turning off the machine or install an additional protection system yourself in the form of inlet hoses with valves, we will talk about them later. In some washing machines high-end protection already installed. For example, complete protection against water leakage is available in cars under the brands:
- Asko;
- Ariston;
- Bosch;
- Siemens;
- miele;
- Zanussi;
- Electrolux.
Partial leak protection
What is partial protection, let's see how it works. Machines with this type of protection against leaks are equipped with a special drip tray, such as the one shown in the picture.
A float equipped with an electric switch is installed inside the pallet. The pallet is made of plastic or metal, the float is made of polystyrene foam. When water flows inside the machine, it enters the pan, with a certain amount of water, the float rises and the switch is activated. At his signal, the machine switches to emergency mode, the washing process stops, the pump works and pumps out water.
Important! In such a situation, an error code is displayed on the display of the machine, in different models different designations, for example, an E1 code will appear in an LG car, and E9 in a Samsung car.
If water leaks into the pan, you need to pour water out of it, and then look for the cause of the breakdown and eliminate it. About all possible reasons and fixing a leak can be found in the article on why the washing machine is leaking.
Inlet hoses with valves
Washing machines with partial protection are called so because the protection only works when water flows into the machine. But if the hose breaks in some place outside, then flooding cannot be avoided. In this case, it is worth considering inlet hoses equipped with protection. They are of three types:
Note! The Aqua Stop inlet hose is designed for a pressure of 70 bar, which is 7 times the maximum pressure in the pipeline.
Full protection against leaks - Aqua Stop system
Washing machines with full protection against water leaks have not only a tray with a built-in float, but also a hose with a solenoid valve, which we talked about above. In other words, if such a hose is connected to a machine with partial protection, then it can be called fully protected.
Such protection against leaks is considered the most reliable. Undoubtedly, cars equipped with the Aqua stop system have an advantage over conventional cars. Having overpaid several thousand rubles for it, you do not have to look for a high-quality inlet hose and figure out how to connect it correctly. The whole system has already been debugged by the manufacturer.
It should be noted that the Aqua Stop protection is triggered in cases of leakage of the washing machine tank, damage to the nozzles, increased foaming and foam coming out.
In addition, full protection against leaks is accompanied by an emergency water pumping system. It works if for some reason the main and protective valve did not work. The main valve is the valve of the machine, to which the inlet hose with Aqua Stop protection is directly connected. You can read about how the main valve works and how to replace it in the article “Inlet solenoid valve».
Thus, the protection of the automatic machine from water leaks can be complete or partial. How to protect the premises from flooding, you choose. However, it is better not to save on security, and at least install it yourself on washing machine Aqua Stop hose with solenoid valve. Believe me, it's worth it!
Modern dishwashers have leak protection systems called aquastops. Unexpected leakage from water hammer, bursting or worn seals can lead to significant costs, especially when neighbors are flooded. Therefore, such protection is very important for uninterrupted and safe work dishwasher.
Aquastop looks like a casing with a valve on the fluid supply hose. In the event of an unexpected change in pressure, it is triggered and the flow of water into the washing hopper stops. The simplest option is mechanically driven protection, which is also called external. Its effectiveness is slightly lower than alternative more technologically advanced options.
Types of protection
Depending on the price, the dishwasher can be installed different types aquastop. They have a different design and principle of operation. There are three options in total:
- Mechanical is the easiest.
- Mechanical with absorbent filler - more complex.
- Electromagnetic - the most technologically advanced and reliable.
Mechanical
This view is slowly fading away. Structurally is a plastic case on the inlet hose, inside of which a valve with a spring is installed. At normal pressure, water is supplied normally. Its change causes the spring to actuate, which tightly blocks the outlet. The system is reliable, prevents leaks in 85% of cases, but is inferior to other options.
Mechanics with absorbent
The mechanical part consists of a plunger, a valve and a spring. There is a special tank for the chemical component. Operating principle:
- when a leak occurs, water enters the tank;
- as a result of contact with moisture, the volume of the absorbent increases;
- a spring is activated, which presses on the plunger;
- the latter closes the valve.
A well-executed system provides almost 100% leak prevention.
The only drawback is the inability to reuse. After actuation, the filler hardens, and the hose with the casing needs to be replaced with a new one.
electromagnetic
This type gives 99% protection. It can be made in one-valve or two-valve version. The casing is complemented by a float tray, which is located at the bottom of the machine. The system turns on when water enters the casing. The following happens next:
- water flows into the pan;
- when it is filled, the float pops up;
- the lever raised by him closes the contact;
- solenoid valve shuts off the flow of water.
Signs of triggering
When the lock is activated, the water supply stops, the machine does not start the washing mode. But this situation can also arise for other reasons. Before drawing a conclusion about the state of the aquastop, you need to find out why it worked. To do this, it is necessary to inspect the filler section on the hose and check the condition of the pallet. In addition, in the event of a malfunction, an error code will appear on the display.
Error code
To inform the user about the status of the device, a display is provided on its front panel. The communication language of the machine consists of special codes that inform about errors. The models of the German brand Bocsh have the system activation code E15.
The meaning of the display is always written in the operating manual. But it is not always possible to check the cause of the operation through the value of the code.
Visual inspection
In situations where there is no indication, and the device refuses to work, it is necessary to examine the condition of the valve. Its tight contact with the inner edge of the nut is a sure sign of the activation of the leakage protection. For inspection you need:
- turn off the water supply;
- remove the hose with aquastop;
- make sure there is no gap between the valve and the fixing nut.
Pallet condition
On machines with electromagnetic protection, an additional check method is to inspect the pallet. For this with front side remove the lower protective bar and check the drip tray for water. Its presence will confirm valve blockage.
Restoration of working condition
The advantage of mechanical protection is that it can be used repeatedly. After eliminating the cause and consequences of the leak, it is enough to cock the spring until it clicks and the device is ready for operation. Alternatives will require replacement of the hose. The procedure is simple and takes a few minutes. Necessary:
- Shut off the water supply.
- Dismantle the used hose with casing.
- Screw on a new one.
In the presence of an electromagnetic version, it will be necessary to connect the contacts of the casing to the recognition sensor. After that, you can resume the operation of the machine.
With an aquastop, a leak will almost always be fixed. However, its small probability still exists. To prevent a leak from becoming an unpleasant surprise, regularly inspect the dishwasher and the area around it for leakage.
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