Bosch washing machines are distinguished not only by high-quality assembly, but also by well-thought-out functionality.
Therefore, all the latest models of this brand are equipped with the Aquastop system, which protects against flooding in the event of an accidental leak. When purchasing such household appliances, an untrained user may experience connection problems.
We'll tell you how to connect a Bosch washing machine with an aquastop below.
What is AquaStop?
Aqua-stop is a special system that is activated when a leak is detected . The option guarantees protection of the room from flooding due to damage to the integrity of the drain hose. Interestingly, it was Bosch that became the first company to develop such a design and has been installing it on all its devices since the 90s.
The Aquastop system in a Bosch washing machine is represented by two solenoid valves with a spring. They are triggered when the pressure in the tube changes. If there is a leak, the valve will simply stop supplying water to the device, even when the tap on the inlet hose is open.
The Aqua-stop system is often called a safety valve. The design is carefully thought out, so accidental activation of this option is excluded.
Each Bosch washing machine is equipped with a tray for collecting water. Normally, it remains dry throughout the entire cycle. If water gets into the pan, the float sensor is activated. It sends a signal to the control board, which closes the valve contacts. The hose is blocked and water stops flowing. The whole process is carried out instantly.
Scheme of work:
- The machine is connected to the network.
- The valve receives the appropriate signal and opens.
- The user presses the “Start” button, the fill valve membrane opens.
- Water enters the device.
- In case of an emergency, water accumulates in the pan.
- As it builds, the float sensor pops up.
- The valve receives the signal and blocks the flow of water.
The AquaStop system is the safety of not only the owner of the washing machine, but also his neighbors living below. This option allows you to safely turn on the laundry at night, or start the timer for any convenient time, for example, when the owner is not at home.
The video will tell you what Aqua-Stop is in a washing machine:
Bosch dishwasher error e15. Symptoms of a malfunction.
To answer this question. Let's take a look at the diagram. Where is the device of the Aquastop system in Bosch (Siemens, Neff) dishwashers shown in general terms?
CM. DRAWING. As soon as water enters the housing (tray), the float floats up and the dishwasher switches to protective mode (protection against leaks) and signals error E15
The fill valve is blocked and the drain pump is turned on. It pumps water into the sewer system through a drain hose. First, all the water from the working part of the dishwasher is drained. Then the pump runs at idle.
This will continue to happen until then. While there is water in the dishwasher body (tray) and the sensor (float) presses the microswitch button.
Moreover, the dishwasher can turn on protection against leaks not only during the washing mode. But also while waiting.
Characteristic symptoms when this malfunction occurs. The dishwasher sounds an alarm. The inscription E15 appears on the display, and “faucet” If there is no display. The faucet indicator flashes and the drain pump turns on at regular intervals.
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During its operation, a characteristic “hissing” can be heard. You cannot turn off the dishwasher using the power button.
Preparation
When connecting a Bosch washing machine with Aqua-Stop, you will need the following tools:
- a hose clamp with a diameter of 24-40 mm, it is used to connect to a siphon;
- level for leveling;
- wrench for removing transportation bolts;
- extension for the Aqua-Stop hose; it will be required if the water supply is located far from the installation site.
The floor covering must be clean and washed before installing the machine.
What problems are associated with the aqua-stop hose?
The main problem is that such aqua stop systems are relatively inflexible, which is why they can create additional difficulties during installation, depending on the installation location and plumbing.
They cannot be extended if they are too short, eliminating leakage protection.
The size of the heavy plastic body with a valve at the end of the hose where it connects to the faucet makes it particularly difficult to fit in many places where space is limited. So, in many situations, this may be the reason why it is not possible to connect an aquastop hose to existing plumbing connections, providing protection against leaks.
Many owners of Bosch dishwashers note that some of these aquastops should only be installed with the pointer down. Therefore, be sure to check the instructions before installation.
Selecting a location
When choosing a location for a Bosch washing machine, you need to calculate the following points in advance:
Area dimensions. To do this, you need to know the dimensions of the device.- Location of drain pipe, water tap, power source.
- Comfortable use of the device. The control panel should not be blocked by any interior items.
- Opening the hatch. It should not rest against a wall or furniture.
Most often, a Bosch washing machine is installed in the bathroom. Although sometimes the device is placed in the kitchen and even in the pantry.
Particular attention should be paid to the surface on which the machine will stand. It should be smooth and firm, which will eliminate the instability of the equipment. Soft floors are not suitable for installation. A level is used to level the device.
How to connect a household appliance?
When connecting a Bosch washing machine with Aqua-Stop, you need to perform the following steps:
- disconnect the device from the power supply;
- install the sensor on the water supply tap by turning it clockwise;
- connect the inlet hose to the Aqua-stop;
- check the tightness of the connections by running water into the hose;
- If leaks are detected, repair them.
This completes the connection of the Aqua-Stop system to the water supply system. Then you need to supply power to the device.
The manufacturer recommends installing a separate outlet under the equipment . If it runs through an extension cord, power surges are more likely to cause damage. The socket must be specially protected from moisture. It is placed in close proximity to the device so that the cord is not under tension.
Connection to the sewer is made by inserting a drain hose into the pipe. You can also remove it through a siphon or simply lower it into the bathtub or sink. The last option is the least preferable.
When connecting to a sewer, you need to pay attention to the location of the hose. There should be no kinks or kinks on it. Pressure from furniture is unacceptable. The hose must be placed above the tank. Failure to follow this recommendation will result in water draining on its own, which will prevent you from starting the wash cycle.
What kind of protection is there?
Today, almost all dishwashers are protected from leaks - without this, the device becomes a source of big trouble. Different manufacturers may have different names for their systems. In PMM Electrolux and Bosch, for example, “Aquastop” operates.
Currently there are almost no dishwashers on sale without Aquastop. Even the cheapest machines have at least a tray with a float.
There are two types of flood protection - full and partial, let's look at them in more detail.
Partial
This option is twice as common. The housing and the pipe inside it are protected. The hose remains at risk.
Housing protection elements:
- tray - metal or plastic (located at the bottom of the device);
- sensor;
- mechanical valve;
- foam float, with lever.
Principle of operation:
- When water leaks appear, its level in the pan increases.
- The float, pushed outward by the water, changes the position of the lever that closes the switch.
- The sensor sends a signal to the valve relay - it shuts off the water supply, and to the module - it starts self-diagnosis. An error code appears on the screen - the user becomes aware of the problem.
- As soon as the signal arrives at the control module, the drain pump starts and begins pumping. From the tank, water is redirected to the drain.
- To restore the operation of the machine, you need to find out what is the cause of the leak and empty the pan.
If the hose located outside the housing is torn, everything will spill onto the floor.
Full
This option is much more effective than the previous one. It is often called “AquaControl”. With this system, the pan is equipped with a particularly durable fill hose, at the ends of which there are solenoid valves.
How does it work:
- When the water in the tank reaches a certain level, the sensor is triggered.
- Next, the system that protects against overflow turns off the valves and interrupts the connection with the water supply.
If the damage to the hose is accompanied by internal faults - for example, a sensor or pump is broken, the machine is protected by a pan with a float. And then the fight against flooding proceeds similarly to the previous version - the tank is emptied automatically and the problem is eliminated.
This option provides greater security, which is why it is worth choosing devices with this function.
To increase the safety of the PMM, you can buy and install a particularly reliable Aquastop hose. It is double - if the inner layer wears out, the outer one saves the situation.
With minor leaks, the system in budget and outdated PMM models does not work immediately. In good machines, Aquastop works immediately.
Setup and first launch
For the device to work properly, you need to configure it correctly and put it into operation. The washing machine manufacturer Bosch makes the following recommendations:
Connect the device to communications according to these instructions.- Plug the plug into the socket.
- Open the water supply tap.
- Turn on the device.
- Close the hatch door. The tank must be empty.
- Select the “Cotton” program with a water temperature of 90 degrees.
- Open the cuvette, pour 1 liter of water into the compartment marked II.
- Add washing powder there (half the dose recommended for regular washing).
- Close the cuvette.
- Start the machine by pressing the “Start” button.
- Wait for the program to complete.
While the machine is operating, you need to monitor its condition. The device should not leak, interrupt the cycle, vibrate strongly or move from its place. If the test wash was successful, the equipment is ready for full use.
Front washing machine Bosch WHA 222 X1OE Aquastop 2m
This washing machine is manufactured in the village of Strelna (St. Petersburg), in Russia.
«BSH Household Appliances
» is a plant for the production of washing machines and refrigerators.
BSH Household Appliances
enterprise is located in the Neudorf industrial zone (Strelna, St. Petersburg). Construction of the plant began in 2005, and already in 2007 the first line of a workshop for the production of refrigerators with a capacity of 250 thousand devices per year was put into operation. In 2012, a washing machine workshop with a capacity of 350 thousand devices per year was put into operation. Today, the company employs more than 1,000 people.
BSH Hausgeräte GmbH
is a German company producing household appliances, founded in 1967 by
Robert Bosch GmbH
and
Siemens AG.
The headquarters is located in Munich.
Currently, BSH Hausgeräte GmbH
is a subsidiary of
Robert Bosch GmbH
.
The concern produces household appliances at 40 factories located in different countries of the world. BSH
unites under its leadership such large and well-known brands as
Bosch
and
Siemens,
as well as specialized (
Gaggenau, Neff, Constructa, Ufesa, THERMADOR and VIVA
) and regional brands (
Pitsos
(Greece),
Profilo
(Turkey),
Balay
(Spain) ,
Lynx, Coldex
).
The company employs approximately 58,000 people worldwide and had a turnover of 77.7 billion euros in 2021. BSH Hausgeräte GmbH
is a leading manufacturer of household appliances in Europe.
Bosch Company
was founded by German entrepreneur and engineer Robert Bosch in 1886.
The original staff of the company consisted of one mechanic and one journeyman. To date, Bosch
has invested approximately €6.3 billion in research and development and has applied for 5,422 patents worldwide.
Bosch Group
includes
Robert Bosch GmbH
and approximately 440 subsidiaries and regional companies in approximately 60 countries.
Together with sales and service partners, Bosch
is present in almost 150 countries.
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AntiVibration system. Silence in the house.
The AntiVibration system is a connection between the moving parts of the washing machine and the body using three springs and three shock absorbers. This design effectively absorbs vibrations of the washing group that occur during the washing process, especially during spinning, and practically does not transfer vibration to the body. As a result, the noise level is significantly* reduced, and the washing machine can be installed close to the furniture. (*Up to 4dB compared to previous generation narrow Bosch washing machines.)
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Possible difficulties
When connecting a Bosch washing machine with Aqua-Stop, the following difficulties may arise:
- Thread failure. This can happen when connections are tightened using a tool such as pliers. To avoid such a problem, you need to tighten the thread tightly, but manually.
- Strong knocking and grinding noise. It appears when the transport bolts were not removed during the first start-up. If you do not stop the cycle, the device may fail.
- The system constantly works, water accumulates in the pan. Most often this happens when the drain hose is connected incorrectly or when the screw fastening of the water supply pipe is loose.
Why was Aquastop activated?
Aquastop is a system that protects the washing machine from leaks. The mechanism consists of two elements: a box with a solenoid valve in the inlet hose and a sensor with a float on the tray of the machine. So, when the corrugation leaks, water gets to the bottom of the unit, after which a “chain reaction” starts:
- water fills the tray;
- the float rises;
- the sensor is triggered;
- a leak signal is transmitted to the valve;
- the valve blocks the intake of water through the inlet hose;
- washing stops;
- The washing machine stops working.
If the washing machine tray fills with water, Aquastop, a leakage protection system, will work.
It’s just that Aquastop works extremely rarely. As a rule, an emergency shutdown occurs for a specific reason. So, water accumulates in the pan in the following situations:
- failure or damage to the inlet or drain hose;
- loose clamps on the pipes;
- presence of cracks in the tank;
- a foreign object stuck in the detergent tray;
- an oil seal that has moved away from the joint;
- damage to the hatch cuff.
If Aquastop works on the inlet hose, the problem may not always be visible visually. Often the inner layer of the corrugation breaks, water gets between the layers of rubber, the sensor detects the leak and sends a signal. The choice of what to do in this case is small: it is impossible to glue such a sleeve - only replace it with a whole one.
Master services
If you have doubts about the correct connection of the machine, it is better to seek help from a specialist. This can be either a private master or an employee of a company service center.
The main thing is that he does not require prepayment , and the fact of connecting the device can be documented by providing the corresponding receipts.
The average cost of work is 1200 rubles. Depending on the region and company, the price may vary up or down.
Top 3 Bosch washing machines with aquastop
The most popular models of Bosch washing machines with AquaStop:
WHA222W1OE
Device with a loading capacity of 7 kg and a depth of 45 cm . The machine reaches a spin speed of 1200 rpm and is equipped with a full leakage protection system, imbalance control and foam level control. Price 32,900 rubles.
WAT286H2OE
Standard size model with 9 kg load capacity. The spin speed reaches 1400 rpm. In addition to full protection against leaks, there are many additional options: child lock, foam control, delay start timer and the ability to reload through the main hatch. Price 51,200 rubles.
WAT20441
Standard size model with a depth of 59 cm . During one washing cycle, the equipment consumes 62 liters of water. Full protection against leaks. There is a timer, panel locking and laundry imbalance control. Price 52,000 rubles.
How does the Aqua-stop hose work in a dishwasher?
Essentially, the aquastop works like a hose within a hose. The outer sleeve is made of corrugated plastic, it is designed to hold water; if the inner layer is damaged, it is reliable protection against leaks. There is also a plastic housing at the end where it works by connecting to the water tap.
If the inner sleeve ever leaks, a device inside this housing is able to detect the incident and prevent further water from entering it thanks to a special valve, thus protecting the system. When trouble occurs, the sensor no longer allows water to enter the device and is usually indicated by a red dot in a small window in the housing. The technician will then be able to determine why this happened.
Once the aquastop is triggered, it becomes useless and cannot be restored, that is, the protection will be compromised, requiring replacement with a new one in order to avoid leaks in the future.
Note that modern aquastop systems can be of different types:
– mechanical
– absorbents
– electromagnetic.
Mechanical systems for combating leaks in dishwashers are no longer installed today due to their low efficiency. Aquastop based on absorbent are much more common. It works as follows: when a leak occurs, moisture flows through a hose into a pan, where it is absorbed by a special material. Then it expands and the valve blocks the flow of water.
Electromagnetic aquastop works similarly, being a modern version of an absorbent with a valve.
Helpful information
Tips for connecting and operating a Bosch washing machine with Aqua-Stop:
- The Aqua-Stop protective device must not be immersed in water. It is equipped with an electric valve, which will fail if it comes into contact with liquid. The warranty does not cover such damage.
- Washing should be done using Automatic detergents. Powders are not suitable for hand washing; they produce an excessive amount of foam, which can cause the Aqua-Stop system to work.
- The accompanying documentation for the Bosch washing machine contains information that in the event of damage caused by a malfunction of the Aqua-Stop system, the company will compensate for it.
- Devices equipped with this option do not require constant supervision. Including when working at night.
- After the cycle is completed, there is no need to close the water supply valve. This is done only in case of a long vacation.
Aquastop system against leaks
The words "water" and "stop" are used by various companies to describe various products to complete their dishwashers. They all try to “stop” water leakage damage in a variety of situations by providing protection. So-called “Aquastop” systems with valves in the appliances can combine a system to detect more than one leak, including using a float switch sensor at the base of the appliance, which acts as a float.
However, this article addresses the actual use of the valved aquastop hose that is supplied with several brands of dishwashers (including AEG, Neff, Bosch & Siemens).
See also -
Pros and cons of connecting a dishwasher to hot water
