Water does not leave the Bosch dishwasher

Many homes rely on a Bosch dishwasher as a dependable appliance on a daily basis. When it ceases functioning as intended, though, it can be annoying. A typical problem is when the dishwasher’s bottom fills with dirty water due to improper water drainage.

There are a number of potential causes for this issue, from a straightforward filter blockage to more complicated problems with the pump or drain hose. By being aware of these possible issues and knowing how to resolve them, you can get your dishwasher back up and running without having to hire a repair specialist.

In this post, we’ll walk you through the most frequent causes of your Bosch dishwasher’s water not draining and offer workable fixes.

Your Bosch dishwasher may not be draining water because of common problems like a clogged filter, a blocked drain hose, or a broken pump. You can get your dishwasher back in working order without hiring a professional by recognizing and fixing these issues.

List of reasons for the malfunction

Water may not drain from Bosch home appliances for a variety of reasons, the majority of which you can resolve on your own. The following conditions may be the cause of improper drain operation:

• clogged drain hose;
• clogged filter unit of the dishwasher;
• damaged water level sensor;
• failed pump;
• clogged siphon or sewer;
• faulty control module.

It’s not always clear what’s wrong with a Bosch dishwasher. There will be times when you have to search everywhere for it. The most fundamental step should always be to inspect the drain hose. You must examine it to see if it is clogged, bent, or has a heavy object on it. If an obstruction is discovered within, it can be cleared using a long metal wire and then thoroughly rinsed with a strong stream of hot water directly from the faucet.

Examine the device’s trash filter and drain pump after the hose. Proceeding to the water level sensor is possible if everything is in order. In the paragraphs that follow, we will go into great detail on how to work with each of the units that are listed.

The system is clogged

A clogged trash filter is the main cause of water not draining from the dishwasher very often. This is because the element continuously accumulates food residues, fruit pits, tea leaves, napkin fragments, and other foreign objects that might remain on dirty dishes. As a result, you should periodically check the trash filter, which is situated at the bottom of the machine’s washing chamber. How should it be cleaned?

• Disconnect the Bosch dishwasher from all communications.
• Remove water from the tray in the washing chamber.
• Remove the trash filter.

The filter unit in contemporary dishwashers is made up of mesh, fine, and coarse filters as well as supporting components that need to be cleaned at least once a month.

After removing the entire unit, you must dismantle it into its component parts and give each filter a thorough cleaning. If there is limescale buildup on any parts of the filter unit, the contamination will not go away and you will need to soak the parts in a citric acid solution for a few hours.

Remember to clean the garbage filter’s seat, as this is where food residue and trash frequently collect. After the cleaning is finished, carefully reassemble the unit and replace it. Make sure the Bosch dishwasher is operating properly so you can determine if the issue has been resolved or if you need to look for it elsewhere.

You must closely inspect the sewer pipe and siphon if the drain issue hasn’t been resolved yet. Water from the dishwasher and household sink will not drain properly if the riser is clogged. Here’s how to put this theory to the test:

• unhook the drain hose of the machine from the siphon;
• install the end of the corrugation on the wall of a basin, bucket or other empty container of a suitable size;
• turn on a short working cycle of the dishwasher.

You can determine whether the waste liquid is leaving or staying in the "home assistant" by taking this test. The siphon needs to be disassembled and cleaned if the water starts to leak out of the bunker; if it stays inside, the blockage is not the cause. You can purchase common household chemicals to clean siphons if you don’t have time to clean the siphon by hand. Pour it into the sink and give it some time; most household appliances are plugged into the outlet beneath the kitchen sink.

The sewer pipe itself might also be the source of the issue. Since the blockage may be deep in the pipe, you will not be able to remove it on your own and will need to call plumbers.

After ruling out every possibility, you will need to partially disassemble the Bosch dishwasher so that you can inspect and repair any damaged parts. You should inspect the pump first, the water level sensor next, and the PMM control module last.

The drain pump is not working

Used water must be pumped from the dishwasher’s hopper to the sewer using the pump. Because it can burn out or just get clogged, the drain pump itself does not last forever and needs to be replaced or cleaned. In any event, the unit needs to be taken out of the home appliance’s housing in order to perform a thorough diagnosis.

You must first lay the equipment on the floor and unscrew the tray in order to partially disassemble it in order to remove this component. If it makes more sense to you, you can attempt to remove the dishwasher’s side wall rather than its bottom in order to access the drain pump.

Once you have unrestricted access, disconnect all pipes and wires and remove the pump. Examine the impeller after removing the pump to make sure there are no foreign objects inside, such as fruit pits or broken glass from dishes. The blades should rotate freely.

Take some pictures first so that you will have a reference of how the wires should be connected correctly later on. Take your time disconnecting the wiring from the pump.

Once the impeller is functioning properly, you should use a standard multimeter to examine the drain pump directly. Connect it to the pump, set it to resistance measurement mode, and check the reading—which ought to be roughly 200 Ohm. You cannot even attempt to repair the pump; it will need to be replaced if the readings are significantly out of the ordinary.

You need to take the damaged pump to the store to be used as an example, or you can write down the exact number of your Bosch dishwasher in order to purchase a new pump. Aim to purchase only original components because they are more durable than copies and analogs.

It’s critical to solve the problem as soon as possible if your Bosch dishwasher isn’t draining properly to prevent more difficulties. Common causes include a malfunctioning pump, clogged filter, or blocked drain hose, all of which are typically fixable with some troubleshooting.

Spend a few minutes cleaning and inspecting the filter, looking for kinks in the drain hose, and listening for strange noises coming from the pump before contacting for expert assistance. These steps could fix the issue and restore your dishwasher’s smooth operation.

Never hesitate to seek technical assistance if the problem continues after you have tried everything. For many years to come, you can maintain the optimal operation of your Bosch dishwasher with routine maintenance and fast resolution of any issues.

Video on the topic

Bosch dishwasher does not drain water, error E-25. Fixing the problem.

Dishwasher does not wash well. Washing goes but there is no water. Valve of the side water tank.

Should there be water in the salt compartment and filter in the dishwasher