Bosch dishwasher E02 Error Code

How to Fix Bosch Dishwasher E02 Error Code [ In 2 Minutes]

Bosch dishwasher E02 error code is one of the common error codes encountered in every bosh Dishwasher. Dishwashers are great appliances to do kitchen chores.

Bosch dishwasher is one of the popular and durable kitchen appliances that can easily last for years without any problem. They have a long history of making affordable yet durable appliances.

Bosch dishwasher is equipped with advanced features, including an error code. Error code features are available in almost every model of Bosch,

which helps you detect and fix the issue without any technical knowledge. If you are reading this article, you most probably have encountered some error code in the dishwasher. 

Bosch dishwasher displayed different error codes depending upon the issue and problem inside the dishwasher.

Every error code in the dishwasher points to a unique issue in the dishwasher. If you don’t know the meaning of error codes, make sure to check the dishwasher user manual.

There, you will find every error code’s meaning and the solutions. 

What is the Bosch dishwasher E02 error code?

Bosch dishwasher E02 error code indicates a problem in the dishwasher control module. In some situations, it indicates a problem related to heating.

I am sure most of you might be familiar with the heating features of the dishwasher. If your dishwasher is not heating the water, your dishwasher is likely to encounter an E02 error code. 

Depending upon the dishwasher model, the problem can differ from dishwasher to dishwasher. The dishwasher is equipped with a heating element connected with the control module.

If the control module is damaged or stops working dishwasher heating element will start to malfunction in the dishwasher. 

How to fix the E02 error code on the Bosch dishwasher?

How to Fix Bosch dishwasher E02 Error Code [ In 2 Minutes]

Before we begin, let me tell you that the E02 error code is not a problem for the dishwasher. If your dishwasher is showing an error code, it is good because it helps you detect the issue before it gets any worse.

The best way to handle the error code is by inspecting it. I recommend you properly inspect the dishwasher and possible issues that could cause an E02 error on the dishwasher. 

Once you detect the issue, you can easily fix the issue from your dishwasher without any problem. Here in this section, we will talk about all the possible issues and their solution with stepwise instruction. 

Faulty Thermistor

Almost every dishwasher model is equipped with a thermistor that helps you regulate the water temperature in the dishwasher.

It is connected to a dishwasher control module which helps you increase and decrease the temperature of the water during the cycle.

If the thermistor fails to function, your dishwasher will encounter an E02 error code in the dishwasher. 

A thermistor is part of the dishwasher temperature sensor. You can easily access the thermistor after removing your dishwasher from the cabinet.

It is located in the block with the heating element. If you don’t know how to test the thermistor, don’t worry. 

Solution

In order to check the thermistor of your dishwasher, you need to have a screwdriver and multimeter. If you have these tools, you can easily test the thermistor on your Bosch dishwasher.

This section will talk stepwise solution to check the thermistor on your Bosch dishwasher along with the stepwise solution.

  1. Turn off the water and power supply on your dishwasher. Also, make sure to remove the garbage disposal pipe on your dishwasher. 
  2. Now remove all the dish racks from the dishwasher. 
  3. Remove the screw securing the dishwasher on the cabinet. There are four screws securing the dishwasher and the cabinet. I recommend you remove all four screws. 
  4. After this, it should easily come out of the cabinet. 
  5. Now set the device upside down. In some dishwashers, the lower part of the dishwasher is secured using a plate. If your dishwasher is secured with a plate, remove the screws. 
  6. After this, you can easily access the lower parts of the dishwasher. Now unplug the branch pipe and lift the bottom of the dishwasher.
  7. Now there, you will see a thermostat connected and multiple wires that are connected to various sensors and control modules. Disconnect the wire from the supply wires.
  8. Clean the dirty particles if they exist; it can also mislead the sensor during communication. 
  9. Now put your tester and see if it has 55 kΩ resistances at 21-degree temperature or not. 
  10. If the thermistor is now showing the resistance mentioned above, you must change your dishwasher Thermistor. 

Overall, first, you need to remove the dishwasher and access the lower panel. Now remove the wire from the lower panel and test the thermistor using a multimeter.

It needs to operate at 55 kΩ resistances at 21 degrees. I hope that the above-discussed step has worked in your model dishwasher. If the problem persists, check the next issues. 

Problem on Control Module

The dishwasher temperature sensor is connected to the control module. The Control panel helps you regulate and control the functioning of the dishwasher.

A dishwasher control module is very complex and requires technical knowledge to repair. If there is a minor problem in the control panel, it will encounter an error code in the dishwasher.

Similarly, it is also expensive to replace or repair. Depending upon the model dishwasher control module is located at the dishwasher door or just above the door.

If you have screws and a multimeter, you are good to go. All you need to do is remove the screw securing the control panel. If you don’t know how to access the control module, don’t worry. 

Solution

To inspect the problem on the control module, first, you need to remove the panel securing the control panel on the Bosch dishwasher.

If the temperature sensor fails to sense the temperature. It can cause overheating and could blow the thermal fuse inside the dishwasher.

This can also lead to an E02 error code issue in the dishwasher. Follow the below stepwise instruction to check the control module on your Bosch dishwasher.

  1. Turn off the power and water supply of the dishwasher.
  2. Now use screwdrivers and remove the screw securing the control panel. 
  3. Once you remove the control panel, you will see various wires coming and passing onto the control panel. 
  4. Use the multimeter and see if the current is passing from a thermal switch or not. 
  5. If it is passing, then there is no problem in the dishwasher control module. Similarly, if it is not passing, you need to replace the thermal switch on your dishwasher.

This is how you can inspect the control module and thermal switch of the Bosch dishwasher. I hope that the method has worked well in your dishwasher. Check the next issue if there is no problem with the dishwasher thermal switch or control module.

The issue with the heating element

The heating element is located at the bottom of the dishwasher. They play a crucial role in heating water during the wash cycle.

If the dishwasher heating element is not functioning dishwasher, it can show an E02 error code. The heating element uses nickel, Chrome, and Stainless Steel alloy. 

Over time heating element gets eroded, and therefore it needs to be replaced in time. If you haven’t replaced your heating element, consider replacing it.

A corroded heating element is likely to cause an E02 error code in the dishwasher.

So, I recommend you check the dishwasher heating element and ensure that there should not be corrosion and rusting. 

Solution

If the dishwasher heating element is corroded, replace it with a new one. Follow the below stepwise instruction to replace the heating element in the Bosch dishwasher. 

  1. Turn off the dishwasher and remove the water supply pipe coming into the dishwasher.
  2. Now open the dishwasher door and remove the dish racks from the dishwasher. 
  3. Remove the sprinkler and screw securing the dishwasher drain compartment and then remove the mesh filter. 
  4. Now remove the mesh filter, and unscrew those five screws securing the nozzle and heating unit. 
  5. Remove the dishwasher from the cabinet and turn the machine upside down. Unscrew the screw securing the bottom panel of the dishwasher. 
  6. Now locate the heating element connected to the pump. Remove that rubber securing heating element at the bottom of the dishwasher. Once you remove it, you can easily remove the heating element from your dishwasher. 
  7. Now follow the same step to replace the heating element in your dishwasher. 

Follow the above-discussed instructions to remove and replace the heating element in the dishwasher. I hope that this method has worked well in your model dishwasher. Check the next issue if there is no problem with the dishwasher heating element. 

Check dishwasher Temperature

Last but not least, a higher temperature can also cause your dishwasher to show an E02 error code in the dishwasher.

If you are using a dishwasher above the recommended temperature setting, the dishwasher can encounter an E02 error code. Therefore, ensure that it is neither higher nor lower. 

What to do if the problem persists?

If the problem persists after trying the above-listed solution. There must be a technical or some complex problem.

In this case, I recommend you to call the Bosch service center. They will guide you to fix the E02 error code on your dishwasher. 

If there is a technical issue, you will need to call technicians to fix the issue. Therefore, I recommend you check the warranty period of the dishwasher.

If it is not over, you can ask the Bosch service center to repair your dishwasher. Similarly, you also don’t need to pay money to fix the issue. 

How to prevent error code Dishwasher?

Error codes indicate problems inside the dishwasher. Every error codes indicate a unique issue in the dishwasher.

You can’t stop the dishwasher from showing an error code. But, you can prevent some error codes by taking proper care of your dishwasher. 

Dishwashers encounter fewer error codes if you regularly clean and operate the dishwasher in the recommended settings.

Similarly, if you are continuously encountering some particular error code, call dishwasher technicians to fix the issues on your dishwasher before it gets any worse. 

Conclusion

This article discussed different issues that can cause the E02 error code in the Bosch dishwasher.

If you cannot fix the E02 error code from your dishwasher, I recommend you consider the above-listed issues on your dishwasher.

If you locate any of the issues, follow the solution, and the error code should disappear from the dishwasher.

Besides this, if you have any problem related to the dishwasher, let us know in the comment below. 

Frequently Asked Question

Why my Bosch dishwasher is not starting?

The dishwasher mainly stops functioning when there is a water supply issue inside the dishwasher.

Water is essential in the dishwasher; we cannot start a cycle without it.

Similarly, if your dishwasher is not receiving or filling water inside your dishwasher will struggle to start. Besides this, a faulty door switch is also why the dishwasher is not starting issues. 

Why is water not heating in the Bosch dishwasher?

Hot water is very effective to wash dirty dishes as it cleans stubborn food particles and oily substances from the dishes very quickly.

Similarly, if your dishwasher is not heating water during the wash cycle, the dishwasher heating element might be a problem.

The dishwasher heating element heats the water inside the dishwasher.

If there is corrosion in the heating element, consider replacing the heating element in your dishwasher. 

Why is the Bosch dishwasher leaking?

Leakage in the dishwasher is very frustrating; it makes your kitchen dirty and leaves stains on the kitchen cabinet.

The main reason for the water leak in the dishwasher is loose wash arm support.

If the dishwasher spray arms are loose or crack dishwasher is likely to leak water.

Besides this, a faulty door switch can also cause leakage in the dishwasher. Ensure that there is no such problem inside the dishwasher. 

Why does the Bosch dishwasher clog?

There are two main reasons that cause clogs in the dishwasher hard water and tiny food particles.

If you are receiving water rich in minerals substances like Calcium, Minerals, and Magnesium, there is a high chance of clog on your dishwasher.

Hard water easily forms clogs on the dishwasher filter and spray arms.

Similarly, if you don’t clean your dishwasher after the cycle, the tiny food particles can block water and can build up to clog the dishwasher. 

I am Kevin Technician and this website is created with the purpose to help common people to find proper information about Dishwasher. Feel free to comment or email your queries.