Error E18 on a Bosch washing machine: what does the F18 code that a Bosch washing machine produces mean, the causes of malfunctions, what to do and how to troubleshoot?

The laundry is loaded, the washing workflow is started, but after some time the washing machine suddenly stops, signaling a problem with error e18.

Understanding what exactly caused this situation will help you restore the functionality of your Bosch washing machine as quickly as possible.

What does error code E18 mean for a Bosch washing machine, how to detect a malfunction and fix it, we will tell you further.

Bosch washing machine code F18 - what is it?

Problems with draining (a few minutes after starting the operating cycle, the washing machine stopped without draining water) are indicated by error e18 (in some models f18, D02) displayed on the display of the household appliance.

A Bosch washing machine without a display signals problems with the drainage system by flashing the spin speed indicator (1000 and 600 or 800 and 400).

Error e18 is a signal to urgently stop using the washing machine. The device must be de-energized: press the “Off” button, then unplug the power cord from the socket. Otherwise, there is a high risk of serious leaks and lengthy repairs.

Error code E18/F18 Bosch washing machine: what does it mean

If you refer to the instructions for a Bosch brand machine, you can see that error E18 means that it is impossible to drain water after using it. That is, there is water in the tank of the unit, and the mechanism is not able to start draining it.

Note! This brand has several different models, so the error can be issued under different codes, for example, F18 and d 02.

There are equipment without a display, then a similar failure becomes visible on the control panel of the machine. When the drain does not work, the value indicators 1000 and 600 light up, indicating the spin speed. In this situation, it becomes clear that the washing machine does not “want” to remove water after processing the laundry.

Possible causes of the error

Here are a few symptoms that can disrupt the drainage of waste water:

If you find that your Bosch washing machine is giving an e18 error, you must immediately stop supplying water to the appliance and turn off the appliance through the button and then from the outlet. It becomes necessary to drain the water from the tank, since without this action it is impossible to understand the true cause of the breakdown and begin repair work.

Typically, water is drained using a drain hose, which is located at the bottom of the unit, where the drain filter is located, covered with a plastic valve.

This action can be carried out in another way - by pulling out the drainage filter. However, with this method a real flood may begin; you will need either a flat container or a large number of rags. But, by unscrewing the filter, you can discover one of the reasons for the error - a clogged filter. If it is heavily clogged and dirty, then the cause of the breakdown will become obvious.

It is also worth inspecting the drain hose; it sometimes gets bent and prevents water from leaving the washing machine tank. If the cause of the error is not a blockage at all, it is worth continuing to search for the breakdown.

Step-by-step algorithm for checking and eliminating unit errors

Bosch washing machine and error f18 will require some effort on your part. So, you have removed the water from the tank, examined the inside of the filter and everything seems to be in order. Let's start looking for the true cause of the error, but to do this, roll out the equipment to the middle of the room and arm yourself with a screwdriver and pliers.

Carrying out cleaning

The algorithm of actions is as follows:

it is necessary to remove the bottom panel from the washing machine by unscrewing the bolts from it;
then use a screwdriver to remove the clamp that holds the rubber cuff;
the next step will be to unscrew the locking device;
then disconnect the chip with wires from the lock;
Now you can pull out the cuvette for filling the powder and unscrew the bolts located under it;
you should carefully remove the control panel; these manipulations should be performed carefully, without touching the wires;
Next, we remove the end part of the equipment to the side;

now you need to remove the clamps from the pipes on the drain pump;
If the pipes are clean without blockage, then we are looking for further reasons. They may be hidden in a broken pump or pressure switch.

How to repair a pump and pressure switch

A Bosch washing machine with error E18 sometimes requires a more thorough check. After disassembling the washing machine, you can safely remove the drain pump. First, disconnect it from the cochlea, and then release the latches. After you find a snail, it is worth checking the impeller; there may be traces of lint or hair on it that may interfere with the free rotation of the pump.

If there is damage to the impeller or electrical part of the pump, care should be taken to replace the parts. After purchasing the necessary spare parts, installation work is performed in the same sequence, only in reverse order.

the pump is connected to the cochlea;
pipes with new clamps are connected to the pump;
the wires are connected and the pump is fixed on the body;
All parts of the machine are assembled and secured, then its operation is checked.

The issue of error F18 on a Dosch washing machine can also be associated with other components and parts of the mechanism, for example, with the pressure switch, which is located in the case at the top right. In order to check the serviceability of this important part, remove the cover located on top from the housing, and also inspect the tube coming from the sensor. The contacts that connect directly to the pressure switch may be broken.

Control module and its breakdown

The control module is the part that is responsible for the technical serviceability of the washing machine and, in any failure, is responsible for stopping the entire mechanism. It consists of many radio elements and circuits and instantly responds to any internal or external provocation.

The module in Bosch MAXX series 4, 5, 6 machines is subject to repair, but this work is carried out only by specialists. You can replace the module, but it is quite expensive. In case of error E18, it is necessary to check the contacts when connecting the pressure switch and the pump triac. If these parts are damaged, they should be re-soldered by a professional.

Conclusion

There can be several factors for issuing error E18 on a Bosch washing machine. A number of them can be corrected independently; to do this, you just need to not disrupt the sequence of actions in disassembling and assembling parts. However, it is better to entrust the elimination of more complex faults to a professional.

Were you able to determine the cause of E18 and now do you need a part? Order from Samodelkin: inexpensive, fast delivery, guarantee.

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instructions

Source: https://Samodelkin-mag.ru/master/kodyi-oshibok-stiralnyix-mashin-bosch/e18

Why does it appear and what to do?

reasons why a Bosch washing machine does not drain water from the drum (or drains it very slowly):

sewer system blockages;
blockages or mechanical damage to the drain hose;
washing machine connection errors;
clogged drain filter;
pump failure;
failure of the pressure switch;
problems with the control module.

It is better to start diagnosing error e18 with minor problems, the elimination of which does not require special skills, gradually moving towards checking components and mechanisms, the repair of which requires certain knowledge and experience.

Checking the sewer

A clogged drain is a common cause of error E18 in Bosch washing machines. Sewer pipes become clogged with soap scum, hair and other debris , which prevents the water from draining smoothly from the washing machine.

How to fix the situation? To check whether the sewer is clogged or not, the end of the drain hose is lowered into the sink or toilet, after which the water drain mode is started. If the washing machine begins to drain water without any delay, the cause of error E18 lies in clogged sewer pipes.

You can fix the problem yourself in the following way: pour a special powder that dissolves blockages into the sink drain, wait the required time (precisely indicated on the manufacturer’s packaging), and then rinse off the powder with good water pressure.

If such actions do not lead to the desired result, it is better to entrust the cleaning of sewer pipes to a professional plumber.

Drain hose

Kinks, mechanical damage, hairs and soap suds adhering to the inner walls of the drain hose prevent the free drainage of waste liquid from the drum, which is indicated by the Bosch washing machine with error e18.

Checking the drain hose for blockages is very simple; you just need to blow into it. The sounds of gurgling residual water in the pump is a signal that everything is in order with the hose. Otherwise, it must be cleaned with a special brush attached to a long cable.

Additionally, the drain hose is checked for kinks and other mechanical damage.

Checking the device connection

Errors in installing the washing machine to the sewerage system can cause difficulties in draining water and, as a result, the appearance of error code E18.

To prevent waste water from pouring back into the drum, the drain hose must be located at least 50 cm from the floor level. It is also necessary to ensure that the hose is installed with a slight bend and is not twisted or compressed by foreign objects.

Pipes and drain filter

When clogged with small debris, lint and hair, the drain filter blocks the free flow of water from the drum.

To clean it, you need to carry out a series of sequential actions:

Unplug the washing machine.
Open the hatch hiding the drain filter (located at the bottom of the body, washed on the left side).
Pull out the emergency drain hose (located next to the filter) and drain the remaining water into a bowl.
Unscrew the drain filter (counterclockwise movements), clean it of debris, and screw it back in.

The filter is washed under running warm water using a soft brush. You should not use boiling water, harsh abrasives, or aggressive household chemicals to clean the filter (there is a high risk of deformation of the plastic and rubber sealing rings).

Diagnosing the drain pump

The easiest way to test the operation of the drain pump is to manually turn the impeller. You can get to it through a niche that opens after unscrewing the drain filter. If the blockage cannot be determined visually, the pump will have to be removed.

Algorithm of actions:

unscrew the fasteners, remove the cover and rear panel of the case, lay the washing machine on its side;
disconnect the pipes (at the same time check them for kinks, blockages, damage), wiring from the pump;
After carefully turning the pump counterclockwise, we remove the unit from the body of the Bosch washing machine.

The dismantled drain pump is carefully inspected for mechanical damage and impeller blockages. Additionally, use a multimeter to test the contacts of the drain pump. If the resistance reading is zero, the device is faulty, a short circuit or winding breaks are possible.

It is not economically feasible to repair a faulty pump . It is more profitable to install a new drain pump.

Testing the pressure switch

Water level sensor in the tank - pressure switch. It is he who transmits data to the control module about the degree of filling of the drum and the need to drain the water. If the operation of the pressure switch is disrupted, the control module does not receive the necessary information, which is indicated by the washing machine with error e 18.

Testing the pressure switch (located under the cover on the back panel of the washing machine) is very simple . It is enough to put a tube of a suitable diameter on the sensor fitting and blow into it. Characteristic clicks indicate that the pressure switch is working properly. Otherwise, the water level sensor in the drum will have to be replaced.

Additionally, the pressure switch is checked with a multimeter. To do this, the tester probes are connected to the relay contacts. If the values on the multimeter display change, the sensor is working; if not, then the pressure switch requires replacement.

Installing a new water level sensor in the tank is simple: just fix the pressure switch in place of the dismantled element, connect the pipe to the fitting and secure it with a clamp, connect the connector with wiring.

Control module

Burnout of tracks and contacts, problems in the operation of resistors, relays and capacitors of the control unit disrupt the normal operation of the washing machine, as indicated by error e 18.

In order to fix the problem, using special tools and devices, technicians test the module, identifying and replacing faulty elements . Lack of knowledge and experience in electronics repair is a good reason to seek help from professionals.

How to fix and what to do if a Bosch washing machine displays error E18

To eliminate error E18 on a Bosch washing machine, you need to disconnect the unit from the power supply and conduct a thorough inspection of the internal parts. Usually repairs come down to eliminating blockages.

How to clean the drain system of a Bosch washing machine

To remove blockages from the drain system, you need to not only turn off the power to the washing device, but also turn off the water in advance using a special valve. The further algorithm of actions looks like this:

On the front panel of the washing machine, in the lower part on the right, a small hatch is opened, which is held in place by plastic latches.
The floor is covered with a large rag or thick towel; if possible, a low but wide ditch is placed to collect water.
Using gentle counterclockwise movements, unscrew the drain filter from the slot of the machine and allow the remaining liquid to drain out.
Carefully inspect the element and clean it of any clogged threads, hair, wool and other small debris.
Rinse the filter of the machine under the tap and dry it at room temperature, and then put it back into the slot.

Most often, cleaning the part helps eliminate error E18. But sometimes the method doesn't work. In such cases, it is recommended to check the drain hose of the unit, attached to the rear panel and connecting the Bosch machine to the sewer.

It is recommended to clean the drain filter every six months as a preventative measure.

When the water supply is shut off, the hose is carefully dismantled and then washed under the tap in the bathroom or kitchen to remove blockages and dense deposits on the walls. Place the clean hose back and try to put the Bosch machine back into operation.

Attention! The water drainage hose should not be bent too much or pressed down by furniture, since in such situations it will also stop letting liquid through or simply tear.

How to repair a pump in a Bosch washing machine

Error E18 in the Bosch serie 6 washing machine and other models may be caused by a pump malfunction. Repairs are carried out according to the following algorithm:

The technical hatch door is disconnected from the body and the powder receptacle is removed, and then the screws located under it are dismantled.
Unscrew the screws holding the dashboard of the car and carefully remove the part.
Open the hatch for loading laundry, loosen and remove the outer clamp on the cuff, and the edges of the latter are tucked into the drum so as not to remove it completely.
Remove all fasteners holding the front panel and disconnect the front wall.
Disconnect the pipes and wires from the pump, located at the bottom of the Bosch unit under the drum, and then unscrew the fastening bolt and pull the part out of the socket.
Inspect the pump impeller - if there are threads and hair on it that impede rotation, they must be carefully removed.

If the blades still rotate slowly and forcefully, you can remove the screws directly in the pump body and disassemble it into pieces to remove dirt from the inside. After the work has been completed, the pump and machine are reassembled in the reverse order and a test run is performed to see if the E18 error has gone away.

In some Bosch models, drain pumps are non-separable and are not suitable for cleaning and repair

A pump malfunction can consist not only of a blockage, but also the appearance of physical defects - cracks and chips on the impeller. In such cases, the blades will rotate too freely. It is impossible to repair a broken part that causes error E18; it is easier to buy a new pump for the machine and install it instead of the old one.

Call the master

If you are unable to resolve error E18 on your own, service center specialists will come to your aid. Finding the necessary contacts is not difficult; just use Internet search engines.

Depending on the cause of the E18 error, the cost of repairs varies from 1,400 rubles for eliminating blockages in pipes and cleaning the drain filter , to 4,000 rubles for diagnosing and troubleshooting the control module.

Payment for the work performed can only be made after a test run of the repaired household appliances. It is strictly forbidden to give money for repairs that have not yet been completed (there are high risks that the operation of the washing machine will not be restored).

Contacting certified service centers for Bosch household appliances will protect you from illegal actions of fraudsters.

Clearing the blockage

Blockages often cause problems for users of Bosch washing machines. When error F18 appears, it is important to consider that there may be some kind of blockage.

To find the cause of the blockage, you must perform the following steps:

If a blockage appears, you should not immediately climb into the body of the Bosch machine and disassemble anything. First you need to check the condition of the garbage filter. Perhaps this is the reason.
If the garbage filter is working properly, you need to remove and check the hose.
At the next stage, you must first disconnect the Bosch washing equipment from the network and remove it. Then pull out the powder receptacle and place the washing machine on the left side. Through the bottom of the washer, get to the drain pipe and pump. They can also cause blockages.

If there are no blockages, then check the pressure switch and pump. These parts may be the cause of error F18. It's best to check the drain pump first, as it can be reached through the bottom of your Bosch washer.

How to prevent it in the future?

A few simple rules will help prevent error E18 (drainage problems) in a Bosch washing machine

Before each wash, pockets in clothes are carefully inspected for the presence of small objects (even a small button can cause blockages in the drain pipes, and as a result of serious problems with draining water from the drum).
Before loading dirty laundry, be sure to check the cleanliness of the sheep.
Regularly, at least once a month, the drain filters must be thoroughly inspected, cleaned, and, if necessary, replaced.

Taking care and following the basic rules of operating a washing machine will help protect the household appliance from frequent repairs and will maximize its service life.

Reasons for the error

Code E18 in Bosch washing machines indicates that waste water is not drained from the tank. This error may be indicated by different codes depending on the model of the washing machine. The E18 code is also identical to F18 and D02.

If the machine does not contain a display, then the user can find out about error E18 by the indicators located on the control panel. If the water is not drained from the washing machine tank, the spin indicators (600 and 1000 rpm) will light up on the control panel.

Water may not drain from the tank for the following reasons:

The drain hose is not connected correctly;
The water drain hose is bent or pinched;
The drain system is clogged. It includes pipes, filters and pumps;
The pump has failed;
The water level sensor is broken;
Damage to the control module of the Bosch machine.

Adviсe

If the cause of error e 18 is not related to a breakdown of the pump or pressure switch, restarting the washing machine will help .

It is necessary to turn off the washing machine (unplug the power cord from the socket), wait fifteen minutes, then turn on the household appliance again and start the washing process.

Connecting the washing machine through a stabilizer will prevent the occurrence of error E18 caused by malfunctions in the electrical network.