Currently, it is difficult to imagine at least one apartment without an automatic washing machine in the bathroom or in the kitchen. This device is able to greatly facilitate physical work and free up time for a modern housewife. It is enough to load dirty laundry, set the necessary washing program, turn on the machine and you can safely do other things.
But how sad it is when, after a signal about the end of washing, opening the door, you notice that the water has remained in the drum and things are completely wet. This means that the Bosch washing machine does not drain the water. Possible causes and remedies are easy to identify and fix on your own.
Water drainage process
Water is removed from the tank of the washing machine in the same way, regardless of the model and brand of the unit. Each machine is equipped with a drain pump (pomp), which carries out pumping of the liquid during the washing process.
An impeller with blades that rotate with an electric motor is located on the pump shaft. The pump is installed in the cochlea, to which all the parts necessary for draining the water (hose, pipes) are connected.
The entire process of water removal is controlled by a pressure switch, which serves to determine the liquid level in the tank. Water from the tank is pumped out by a pump through a drain hose equipped with a special cleaning filter, and is sent to the sewer system of the apartment.
All parameters of the draining process are set and controlled by the electronic control unit of the washing machine.
Symptoms of Anxiety
During the washing process, water from the tank of the washing machine is automatically removed several times in one cycle. First, the initial and main wash, then rinse and spin the laundry. After each operation, water must be removed from the machine.
To find out why the Bosch washing machine does not drain water, you must periodically monitor its condition during the washing process. The presence of the following symptoms should alert:
- The process of water removal began to occur periodically, and not after each necessary operation.
- Water is drained slowly, while the next wash starts to malfunction.
- During the washing phase, draining occurs, but when rinsing the Bosch washing machine does not drain the water.
- The spin of the laundry is blocked.
- The Bosch washing machine does not drain and buzzes during washing.
If you find at least one of these symptoms of the misbehavior of your home assistant, you need to establish the cause of the malfunction and begin to eliminate it.
Causes of the drain system malfunction
The lion's share of the reasons why the Bosch washing machine does not drain water is a human factor. And although the units of this brand are considered one of the highest quality and most reliable washing machines on the market, nevertheless there are breakdowns with them.
The Bosch washing machine does not drain water for several reasons:
- The washing mode is not selected correctly.
- Filter clogged.
- The drain hose is clogged and poorly leaks water.
- Defective drain pump.
- Damaged level sensor.
- Faulty unit control unit.
Therefore, before draining the water from the Bosch washing machine, it is necessary to disconnect it from the network, and then proceed to find out the cause of the breakdown.
Filter or nozzle clogged
In most washing machines, a filter is installed between the drain pump and the hose, which protects the sewer from various debris from the unit's tank, and also helps to save lost items from the pockets of things. Over time, small fibers or threads that come off the laundry gradually accumulate and clog the filter.
At that time, when the filter is completely clogged, the control unit issues a special error code, and the Bosch washing machine does not drain the water.
Do-it-yourself filter is easy to clean. Its location and cleaning methods are indicated in the instructions for use of the machine. Most often, the filter is located at the bottom of the front panel of the washing machine. It is usually covered by a square or round hatch, and some models also have a decorative panel. Its fastening is simple, with latches that are easy to detach. But, before proceeding with the removal of the filtering device, it is necessary to put rags around the machine so that the remaining water does not spill onto the floor surface.
As soon as it is possible to unscrew the filter, water will pour out of the tank. If this does not happen, then the pipe is clogged, which will also have to be removed and cleaned of scale or debris. If there is no debris in the filter and nozzle, and the water does not drain, you will have to disassemble the drain pump.
Drain pump failure
When the Bosch washing machine does not drain and buzzes during washing, the drain pump may be malfunctioning. Any washing program is carried out with the obligatory use of this unit. A breakdown of the pump leads to the fact that after performing all washing modes, water remains in the tank of the machine.
Most often, the cause of the malfunction of the drain pump is the ingress of small objects (threads, buttons, hair, coins) into the cochlea that wedge or destroy the impeller blades, as well as the natural wear of the mechanism parts.
If the Bosch washing machine does not drain water, both with a vertical load and a horizontal one, you will have to remove the pump. You can inspect it by first disconnecting the machine from the mains and removing the cleaning filter. After removing the filter in the hole you can see the impeller of the pump. She should rotate her hand easily. If rotation is difficult, it means that threads or fabric are wound around the shaft.
With any mechanical damage to the blades and the motor winding - the pump must be replaced. It should be borne in mind that it is allowed to install the pump from a unit of another brand, the main thing is that it is suitable for mounting and operating power.
Damage to the control unit and water level sensor
The Bosch Max 7 washing machine does not drain water in the event of damage to the electronic module of the control unit. Then the failed module sends the wrong signals to the control board, which disrupt the drain process.
Damage to parts of the electronic circuit of the control unit may occur due to increased humidity and power surges. In any case, it is not advisable to conduct electronics repair work on your own, it is better to contact the specialists of the service center.
In the back of the machine, under the lid, there is a pressure switch that controls the amount of water in the tank. Its breakdown leads to error messages, while the sensor erroneously indicates that there is no water in the machine.
Before changing the sensor, you need to check the operability of its contacts. Often, simply cleaning the contact plates brings life back to the entire device.
Preventive actions
In order to avoid premature wear of the drainage system parts of the washing machine, the following preventive measures must be observed:
- remove small foreign objects from your pockets before washing;
- regularly clean the drain pump filter;
- use a surge protector to protect the electronic part of the machine from power surges;
- observe the drum loading weight specified in the instructions;
- add washing powder in accordance with the norm, while monitoring its quality;
- carefully monitor the correct washing mode.
Remember that it is better to prevent damage than to spend money on repairs later. Any malfunction always makes a person nervous, and this is dangerous to health.