Every year, household appliances are getting smarter, many new functions appear. Dishwashers have made our lives much easier, and if you calculate how much time is saved, it becomes clear why almost every home has them today. One of the most recognizable brands is Bosch. The manufacturer makes high-quality, multifunctional and durable dishwashers. But any technique breaks down over time, malfunctions and various malfunctions appear. Some problems can be solved on your own. We offer to study the most common error E22, and find out how to fix it without resorting to the help of a wizard.
Meaning of error code E22
If your Bosch dishwasher shows error code E22, this may indicate various problems with the drain. For example, the filter may become clogged, blocked by a foreign object, due to which the water begins to drain poorly or does not leave at all. Also, over time, calcified deposits may appear in the filter, blocking the drain.
In addition to a filter problem, error E22 can also indicate a clogged drain hose, check valve, or pump. Always, if water remains in the dishwasher bowl, although the drain cycle has already been completed, the technician will report this with an error on the control panel.
Any technique requires proper and regular maintenance. Preventive measures for a dishwasher involve cleaning the drain system: filter, hose, valves. If there are defects, blockages that cannot be cleared, and other problems, the parts must be replaced.
A common problem is that the filter or other drain elements become clogged with food debris. Rarely, some small object can get there and block the drain. This will be a signal for the machine to report the problem to the owner with an E22 error. Let’s take a closer look at the problems associated with this code.
Clogged fine filter
The fine filter in the Bosch dishwasher is located at the bottom. It consists of two parts: a mesh screen and a filter element. The screen is evenly laid on the bottom of the machine, and the filter is attached to it from below and leads to the bottom of the bowl.
Why does not it work
Any filter needs to be cleaned periodically. Without proper care, it becomes very clogged and does not pass water well, which leads to an E22 error. But this is the most harmless thing that can happen, because a clogged filter will not allow the right amount of water to be recirculated, which means the dishes will be washed poorly, and the filter element will begin to clog even more due to lack of water.
How to fix
Solving the problem with the filter is quite easy. To do this, you do not need to call the master and pay for repairs, because everything can be done independently, I follow the algorithm:
- Disconnect the dishwasher from the mains.
- Remove the filter – to do this, you need to turn its upper part (if necessary, look at the instruction manual).
- After removing the mesh filter, you need to remove all large particles that remain on the bottom.
- Next, you need to rinse the filter under running water to remove all blockages.
- Make sure that nothing is stuck in other elements of the drain system.
- Install the old cleaned filter or a new one in place, fix it.
- Run a quick cycle and check the performance of the equipment.
Regular cleaning of the filter will help to quickly eliminate the error. The machine after such manipulations will work like new. For prevention, periodically remove and clean the filter as needed.
Calcium deposits have accumulated in the filter
In addition to leftover food and other items, the filter can accumulate calcium. The part begins to grow with these deposits, and the filter ceases to perform its function. At the same time, not only dishwashers suffer, but also washing machines, coffee makers and other household appliances connected to the central water supply network.
Why does not it work
The problem directly depends on the quality of water. In some places, it is highly mineralized, which leads to such a situation. In another way, calcium deposits are called limescale. If the filter becomes overgrown with minerals, drainage deteriorates. In turn, the technique reacts to this with an E22 error.
How to fix
First you need to remove the filter. If you find limescale on it, then you need to try to clean it or simply replace it with a new one. If there is not a lot of plaque, then you can take a toothbrush and a descaling and limescale remover. You can find the powder at any hardware store or supermarket.
Anything that can be cleaned with a brush should be removed. Then put the filter back in place, run the cycle at the highest temperature. You don’t need to add the product right away. When the equipment has warmed up, after about half an hour, you can put a pack of descaling agent on the bottom and wait for the cycle to complete. Then you need to run another cycle to wash off the remnants of the product.
In order to prevent the appearance of lime deposits, for prevention it is necessary to carry out cleaning several times a year in this way. The frequency depends on the composition and quality of the water.
Clogged drain hose or non-return valve
After the water passes through the filter in the Bosch dishwasher, it enters the drain hose and enters the sewer. On the way of the liquid there is a check valve that prevents the reverse flow of water from the sewer system.
Why does not it work
Not only the filter can become clogged, but also the hose or valve itself. This can lead not only to an E22 error, but also to more unpleasant consequences. If these elements are clogged, then the water that should go down the drain comes back.
The E22 code always speaks of problems with the elements of the drain system, so you need to look for a malfunction there. Most often, these are ordinary blockages, after prolonged use of equipment without proper care.
How to fix
Before you start fixing the problem, you need to prepare rags and a container to collect water. If there are no obvious blockages, you need to disassemble the dishwasher a little. To do this, disconnect the drain hose and check valve. These parts must be thoroughly cleaned and rinsed. If necessary, replace with new ones. After that, the water will be able to leave unhindered and the error code will no longer flash.
Partially clogged circulation pump
A dishwasher is a complex household appliance, consisting of many parts and elements. Many models have several pumps that perform different functions, one of them is circulation. It pumps water into the dishwashing sprinklers. The volume of water must be sufficient to ensure a good wash.
Why does not it work
Compared to the above problems, clogging of the circulation pump is much less common. But with such a problem, the machine also reacts with the error code E22. Partial blockage prevents the pump from recirculating water normally.
How to fix
Before you get to the circulation pump, you need to find its cover and remove it. Unplug the dishwasher beforehand and don’t forget to look at the instruction manual to quickly determine where the part you need is located.
After that, you need to clean the pump of blockage, pieces of food, dust, dirt and foreign objects that block its operation. It is better to work with gloves so that it is more comfortable to clean and not get hurt. After that, you need to close the pump and run a short washing cycle to check the machine for operability.
Bosch dishwashers are of high quality and durable, but long-term operation and natural wear do their job. If you saw the error code “E22” on the control panel, try using our tips and tricks to fix the machine’s malfunction and return it to working order. In the event that no blockage was found, or cleaning did not help, try checking the elements of the drain system for cracks and defects, they may need to be replaced. Also, you can always contact a specialist who will quickly find out the cause of the error and eliminate it using special equipment, their skills and knowledge.