6 Reasons Why Bosch Dishwasher not draining [Solution]

Dishwashers have become one of the must-have appliances in everyone’s kitchen. The days were gone when we used to do dishes with our hands.

The dishwasher has also advanced and becomes affordable at the same time. Bosch dishwasher is one of the popular and advanced dishwashers available in the market right now.

The thing that most people hate about dishwashers is cleaning. Unlike other appliances, a Dishwasher requires proper cleaning and maintenance from time to time.

If you avoid these things you will encounter a lot of problems in the dishwasher. The most common problem that you will encounter is draining issues.

If you haven’t cleaned your dishwasher for a long time it is certain that you will encounter a drain issue on the dishwasher.

Besides this, there are lots of reasons that could encounter Draining issues in the dishwasher.

Therefore, today in this article we will discuss different issues and their solutions which will help you fix the Bosch Dishwasher not draining.

Why is my Bosch dishwasher not draining?

If your Bosch dishwasher is not draining, consider cleaning food debris and air gaps inside the dishwasher.

These are some of the major culprits behind the dishwasher draining issue. Besides this, there are lots of such issues that can encounter draining issues on the dishwasher.

If you have tried every solution but the problem still persists then don’t worry. In this section, we will discuss different issues that can cause draining issues on the dishwasher along with their solution.

Drain Hose

If your dishwasher is not draining I recommend you check the dishwasher drain hose.

Whenever the dishwasher stops draining there could be a problem with the dishwasher drain hose.

When the dishwasher drain hose kinks or is clogged you can’t drain drainage from your dishwasher.

The drain hose is located at the bottom of the dishwasher. It is connected with a dishwasher drain pump and garbage disposal.

If you haven’t cleaned the dishwasher hose for a long period of time I recommend you remove your dishwasher hose and clean food debris and clogged particles from the dishwasher.

Solution

If you don’t know how to remove the drain hose don’t worry. Here we are going to discuss stepwise instructions to remove and clean the dishwasher drain hose.

1. Turn off the power supply and water supply on your dishwasher.
2. Now remove the front access panel and toe panel from the dishwasher. You need to have a screwdriver in order to remove both panels from the dishwasher.
3. Remove the dishwasher from the kitchen cabinet.
4. Access the bottom part of the dishwasher and then remove the lower access panel.
5. After removing the screw from the lower access panel there you will see the Drain pump and circulation pump.
6. The drain hose is connected to the drain pump.
7. Remove the wire clamp from the drain pump and then pull the end of the drain hose.
8. Once you remove the drain hose, clean all the food debris and clogged particles from the drain hose.

This is how you can remove the dishwasher drain hose and clean them on the Bosch dishwasher.

All you need to do is remove the dishwasher from the kitchen cabinet and then remove the drain hose from the bottom of the dishwasher.

After this, you can easily clean the dishwasher drain hose without any problem.

Wrong Detergent

The wrong detergent is another problem that can cause drain issues in the dishwasher.

There are different types of dishwasher detergent on the market. It is important to use a detergent that is recommended by your manufacturer.

When you use a detergent that has suds there is a high chance that you will encounter a drain issue on your dishwasher.

Therefore, I always recommend you to use the right detergent recommended by your manufacturer.

Solution

When it comes to dishwashers there are different types of detergent in the market.

If you don’t know anything about dishwasher detergents don’t worry.

There are two main types of detergent, one is sodium-based detergent and another one is without sodium.

If you have hard water then I suggest you go with sodium-based detergent. Similarly for soft water, I suggest you go with tablet and powder-based detergent.

Tablet and powder-based detergent are best for soft water. If you don’t like mess or pods in your kitchen I recommend you to go with liquid-based detergent.

Timer

Timer malfunctioning can also cause draining issues on the dishwasher.

As mentioned earlier, the dishwasher motor has two compartments, one for circulation and another for drainage.

This motor operates and stops at certain time. When something goes wrong with the dishwasher timer you will encounter a draining issue on your dishwasher.

It is very hard to identify timer issues on the dishwasher if you don’t have proper tools in your home.

To check timer assembly you should have a multimeter in your home. By using a multimeter you can easily identify if the timer is working properly or malfunctioning.

Solution

If the timer is malfunctioning in your Bosch dishwasher you should replace your existing timer with a new one.

Therefore, what I recommend you do is first locate the timer in your dishwasher.

Depending upon the dishwasher model timer is located in the Control panel, Lower Kick plate, or at the bottom of the unit.

Once you identify the timer follow the below step-wise instruction to check defects in the timer assembly.

1. Turn off the dishwasher power supply and water supply.
2. After this locate the timer assembly in the dishwasher. Once you locate the timer assembly remove the panel that is protecting the dishwasher timer assembly.
3. Now set your Multimeter to the X 1000 setting.
4. Now touch each probe of your dishwasher to timer assembly. If the multimeter is showing a 2000 to 3500 ohms range. There is no problem with the dishwasher timer assembly.
5. Similarly, if the multimeter is reading above 3500 ohms and below 2000 there is a problem in timer assembly.

This is how you can check dishwasher timer assembly using a multimeter.

First of all, you should locate the timer assembly and then you can easily test the dishwasher timer assembly using a multimeter.

Drain Pump

A clogged drain pump also causes drain issues in the dishwasher. If your dishwasher is not draining and creating problems like standing water I recommend you to make a proper inspection of the dishwasher drain filter and drain pump.

If there is any kind of food debris or calcium build-up considered cleaning the dishwasher drain pump.

When the water cannot pass from the drain filter it causes drain issues and also leaks water from the dishwasher.

So the solution to this problem is to clean all the debris and food particles from the dishwasher drain compartment.

Solution

If you don’t know how to clean the dishwasher drain pump or drain filter don’t worry here we will discuss stepwise instructions to clean the dishwasher drain filter.

1. Turn off the power and water supply in your dishwasher. Once you remove the power and water supply open the dishwasher door.
2. Now remove the lowermost rack from your dishwasher.
3. Now twist and pull the mesh screen from your dishwasher and then remove the drain filter from the dishwasher.
4. Remove the filter from the dishwasher and clean it thoroughly using water and a brush. Ensure that there should not be a blockage or any kinds of remaining food particles in the filter.
5. Reinstall the drain filter and mesh screen in the dishwasher. Restart the dishwasher and run a new cycle.

Follow the above-given stepwise instructions to clean the drain filter in your dishwasher.

If the clogged filter is causing a drain issue in your dishwasher the above-written instruction will fix the issues in your dishwasher. If the problem still persists go to the next section.

Garbage Disposal

If the garbage disposal is not working then it can cause a drain issue in the Bosch dishwasher.

It happens when the food particles are left inside garbage disposal and still un-rinsed.

The drain hose runs from the dishwasher to the garbage disposal.

Remove the drain hose from the dishwasher and then remove all the leftover food particles.

After this make a proper inspection of the garbage disposal and clean all the food particles that have been a build-up in the garbage disposal.

You can pour hot water or soda water combination to clean food particles from the garbage disposal.

Clean Air Gap

The air gap is another issue that causes a drain issue in the Bosch dishwasher. If you are having a drain issue then you should consider this issue in your dishwasher.

The air gap is located at the bottom of the dishwasher and just below the sink.

The dishwasher sink should be clear then only it will prevent water from backing into the dishwasher drain compartment.

The air gap is connected to the dishwasher drain hose. It is basically a little hood at the back of the dishwasher sink.

To access this little hood you need to remove the screw from the cover. After this use a small brush and clean everything from the air gap.

How To prevent Draining issues on dishwashers?

If you encounter a draining issue most often you might be repeating some problem in your dishwasher that you are unaware of.

Here we have listed some things that you should avoid to prevent draining issues from your dishwasher.

1. Always use the detergent recommended by your manufacturer.
2. Clean the dishwasher filter after three to four cycles.
3. Make sure to clean the dishwasher drain hose and garbage disposal once a month.
4. Use vinegar and water solution to clean stubborn food particles from the dishwasher drain compartment.

What to do if Dishwasher is still not draining?

If you have tried all the solutions but the problem still persists. You can call Bosch dishwasher service center.

They will help you figure out and fix the exact problem that is causing drain issues on your dishwasher.

Besides this, you can also call technicians but I recommend you to contact the Bosch service center if the warranty period is still not over. You can repair your dishwasher free of cost.

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Conclusion

Bosch dishwasher not draining is a common problem that is seen in every Bosch dishwasher.

There are various reasons that cause this problem in your dishwasher.

In this article, we have discussed all these issues and their solution to fix the issue with your dishwasher.

I hope that the article was helpful for you while troubleshooting the draining issue on your dishwasher.

If the problem still exists make sure to call Bosch customer service center. Besides this, if there is any problem related to draining issues then feel free to tell your problem in the comment down below.

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