Modern technology allows you to monitor the condition of parts. Manufacturers have introduced a system into dishwashers that informs about a malfunction using codes. Unfortunately, even the notification technology does not always correctly display the cause of the breakdown.
Error E22 in a Bosch dishwasher is one of those difficult to decipher. Despite the detailed description of the code in the instructions, the indicated problem does not always correspond to the real one. Code E22 can occur under various circumstances.
Circumstances under which error E22 appears
Error code E22 appears in Bosch machines closer to the end of the cycle. Usually, there are 5-7 minutes left until the end of the program, when the machine freezes and stops working. Most users solve the problem by restarting the device. However, this method can be considered only a temporary measure, since after a couple of cycles the situation repeats itself.
Moreover, the system can display the code on the display in the middle or at the beginning of the program. The user tries to resume the operation of the dishwasher in the usual way: by turning off the device and turning it on after 10-15 minutes. However, after resetting the error, the user is faced with a new problem - code E24 pops up.The system, after cycling for 15-20 minutes, will freeze again.
If you ignore the problem, error codes will appear regularly. And constantly turning the device on and off can cause damage to the control unit. Moreover, repairs will be very expensive. Therefore, restarting the device is permissible only when the error first appears. After the cycle is completed, repairs must begin.
Error interpretation
If any error occurs, please refer to the instructions included with the device. The user manual contains explanations of all codes. According to the instructions from Bosch, error E22 means “filter blocking”. Pieces of food clogged the mesh located at the bottom of the device. As a result, the system cannot eliminate the used fluid. Sometimes not only the mesh can become clogged, but also the filter itself. Pieces of food may get inside the part.
At this stage, problems arise for most users. Inspecting the filter and mesh does not eliminate the error, as they often turn out to be almost clean. The situation becomes a dead end, because the error does not correspond to a breakdown.
In fact, in almost half of the cases, contaminants accumulate inside the washing mashine. Therefore, the device will have to be partially disassembled.
Determining the cause of the breakdown becomes more difficult when code E24 appears. Some repair specialists recommend paying attention to the condition of the drain hose. Approximately 20% of all malfunctions are explained by damage to a part or blockage.
However, more often than not, a double error indicates a problem with the pump. Dishwashers have a less powerful pump than washing machines. However, their failure is not a rare problem.The appearance of errors E22 and E24 can be caused by a thread or piece of food getting into the gap between the impeller and the pump. In this case, it is easy to fix the problem in a short time. The only question is correct and timely diagnosis.
Reason for error E22
So, the system may issue a code due to various circumstances. The main reasons causing the malfunction are: clogged filtration system, damaged and clogged drain hose, broken sprinklers.
Filter clogged
The filtration system traps food particles and broken glassware, so its cleanliness is important for proper operation of the product. The net is used to collect small pieces of food. The garbage filter is used to block large residues, undissolved detergent and other dirt.
The inlet filter is located at the connection point of the inlet hose to the device. This filter is a small mesh. Its main function is to collect large debris that may be contained in tap water. If too much dirt has accumulated, the device cannot drain waste water. This provokes the appearance of code E22.
Drain hose is faulty
Problems with the hose often cause an error to appear. Sometimes debris can block water access. Therefore, the hose must be disconnected from the device and pipe in order to rinse under water. Sometimes the blockage may be located in the siphon pipe.
In other cases, the appearance of the E22 code is caused by damage to the hose or its kinks. In this case, it is better to completely replace the part, since the repair may result in a water breakthrough. Flooding repairs can cost more than purchasing a new hose.
The impeller sprinkler has failed
The system can indicate a breakdown of the sprinkler with different codes, E22 is one of them. In this case, the problem occurs due to debris trapped in the space between the pump bushing and the impeller. Sometimes the spray arm becomes blocked due to a small thread or small pieces of food. It can be very difficult to notice them, so the inspection must be carried out very carefully.
Troubleshooting
It is impossible to restore the operation of the dishwasher without dismantling the walls and parts. In order for the device to fully carry out the cycle, it is necessary:
- Prepare the washing mashine for disassembly. The dishwasher must be unplugged by unplugging the power cord. Then you need to turn off the water supply and make sure there is no water in the product chamber. All holders and grids for dishes must be removed.
- Clean the drain filter. This part is located inside the camera, in its lower half. The filter must be unscrewed and carefully inspected. Any foreign objects must be removed and the part must be washed.
The filter mesh must be removed and cleaned; if necessary, you can use a toothpick. It is also necessary to inspect the impeller; if the part does not rotate, then it needs to be removed. And the connection site should be cleared of debris; there should be no dirt left on the bushing.
After cleaning, the removed filters must be installed correctly. When inserting parts, a characteristic click should occur. Installation must be carried out in accordance with the markers on the filter and the machine itself. - Clean the drain pipe. To remove the part you will need to unscrew the mounting bolts. If there is a blockage, the pipe must be rinsed under water.
- Check the functionality of the heating element.If after performing the above steps the error continues to occur, then it is necessary to inspect the heating element. To remove it, you will need to place the device on the back wall. It is advisable to place a blanket or rag under the washing mashine. To dismantle the pallet, you need to disconnect the plastic clips. There is a plastic block in the middle of the bottom panel; it has holes for tubes. There is a heating element inside it; its serviceability is checked using a multimeter.
- Inspect and repair the pump. The part is located next to the heating element and should be disconnected from the contacts. Then unscrew the bolts securing the part, two of them on each side. To remove the part, it must be rotated. Now you need to check the performance of the impeller. If movement is difficult, you will need to remove the rotor from the bushing. It is necessary to remove any visible debris, and then return the disconnected parts to their place.
- Inspect the drain hose. It is necessary to disconnect the part from the device and pipe. You can use pliers for dismantling. Now the part needs to be inspected for blockages. If the hose is clogged, it must be rinsed under a powerful stream of water. Washing will help identify damage to the part. If the integrity of the hose has been compromised, you will need to purchase a new one.
- Assemble the device. All removed parts are returned to their place, bolts are installed and wires are connected. At the final stage, the device is connected to the water supply and sewerage system, and the cord is inserted into the network. After assembly, it is important to check the machine by performing a test run.
What to do if the problem persists
Sometimes the problem lies not in blocked filters, but in damage to internal elements due to contact with water.If the destruction process is at the initial stage, then anti-corrosion treatment can help. However, if the damage is severe, repairs will not be possible; complete replacement of parts will be required.
In another case, an error on the display is caused by a broken winding on the drain pump. Fixing the problem will require technical skills. It is necessary to disassemble the device and check the condition of the drain pump connectors.
Sometimes the system issues code E22 when the heating element or pipe breaks down. You can check their condition on your own; instructions are given above. However, it is better to entrust the installation of new elements to a specialist.
Conclusion
Troubleshooting when code E22 appears is quite simple; repairs do not take a lot of time. However, diagnosing the problem can be difficult. After all, the appearance of a code on the display can be caused by various circumstances: from clogged filters to a broken sprinkler. In most cases, repairs can be done yourself. If the problem is caused by a malfunction of the heating element, then the restoration of the equipment should be entrusted to a specialist.
