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Bosch Dishwasher Check Water Light Flashing – How to Fix?

When using an effective dishwasher, you might be familiar with the Bosch dishwasher. Generally, the Bosch dishwasher can work for a long time without any disturbance.

But sometimes, you might see different problems associated with a light flashing in the dishwasher.

So, you might be confused about why your Bosch dishwasher check water light is flashing. Moreover, learning about fixing the problem is pretty essential.

Besides, knowing about the function of this dishwater is necessary to know while fixing the problem. So, let’s see details about the Bosch dishwasher and its flashing signals.

Bosch dishwasher flashing check water light

Bosch dishwasher check water light flashing might mean residual water in the sump. This problem can be caused by a blocked pump or a dirty filter. Moreover, a faulty water supply cut-off valve can give this flashing signal. Besides, a faulty aqua sensor can cause this problem.

However, flashing check water lights can indicate different problems in the dishwasher. Different problems might have different solutions. 

So, let’s see why your Bosch dishwasher is flashing the check water light. Besides, the solutions to these problems are also provided.

Problem with the heating element:

When the Bosch dishwasher check water light is flashing, the dishwasher problem is related to the E09 error code. This code means that there is a problem with the heating element.

The heating element in the Bosch dishwasher also accelerates the drying process. When the water leaks into the heater, the heating element will fail. This can happen when the drainage filter is clogged or buildup.

Drain pump problem:

A drain pump problem can often make the check water light flash. Generally, the drain pump pushes water through the drain hose. If the pump has any problem, the water will not drain properly. So, the faulty drain pump can cause the water check light to flash.

The only solution to this problem is to replace the pump system altogether. Because the drain pumps are not repairable or replaceable alone. So, it’s wise to change the whole pump system.

Residual water in the sump:

Your Bosch dishwasher check water light might flash when residual water is in the sump. This problem can be caused when the pump is blocked.

Moreover, a dirty or clogged filter might also cause residual water in the sump. This problem might be solved by filtering the replacement pump.

Faulty water supply cut-off valve:

Bosch dishwasher check water light flashing might indicate a faulty water supply cut-off valve. The water supply cut-off valve can get stuck with food debris.

After getting stuck, this component will overfill or even flood. So, the water inlet valve requires replacing to solve the problem.

Faulty water switch:

A faulty water switch might cause the water check light to flash. Generally, when the water switch has a problem, you must remove the switch. Otherwise, you can remove the dishwasher tub. This can also indicate a faulty aqua sensor when the water is dirty.

Activated anti-flood switch:

When an anti-flood switch is activated, the Bosch dishwasher check-water can flash the light. This problem will indicate error code E9. Generally, this problem might occur due to a blocked drain or faulty drain pump. It might also cause water leakage under the dishwasher.

Overfilled with water:

When the dishwasher is overfilled with water, the error code E5 might indicate. This will cause the check water light to flash. The float switch or water inlet valve needs to be repaired to solve this problem.

Other problems:

Some other problems might be the reason for flashing the check light water. For example, kinked water supply hose, obstructed filter in the supply hose, blocked filters, blocked pump, closed water tap, etc., might be the reasons.

What does check water light on bosch dishwasher mean?

Check-water light on the Bosch dishwasher means there might be an error in the dishwashing system. Generally, errors in the dishwasher can be associated with different problems. So, the errors are classified into different types.

Some common problems might induce the water light on. For example, the blocked pump, dirty filter, water supply cut-off valve problem, heating element problem, etc., can be responsible. These problems will result in the check water light on.

So, when you see the check water light is on, the dishwasher has a problem. Moreover, when residual water is in the sump, the light might stay on or flash.

There might be plenty of problems associated with the Bosch dishwasher. But the water check light indicates some specific problems. So, you can solve the problems after identifying the possible issues.

Is Bosch dishwasher flashing check water light common?

Bosch dishwasher flashing check water light is common when you use the dishwasher regularly for a long time.

That is not common if the light is flashing in a new condition. But Bosch dishwashers can also be of different types. Let’s see whether flashing check water light is common in these dishwashers.

Bosch Serie 2 dishwasher:

Flashing lights can be a common problem in Bosch Serie 2 dishwashers. This Bosch dishwasher is commonly used, and the flash the light problem can arise for different reasons.

Most times, the problems can be solved on your own. But sometimes, parts of the dishwasher need to be changed.

Bosch classic electronic dishwasher:

Flashing check water signal is also common in Bosch classic electronic dishwasher. Because this problem arises when the dishwasher has been overfilled with water.

Bosch slimline dishwasher:

Bosch slimline dishwasher has the same specifications and properties as the other dishwashers. So, a flashing light problem is also common for this dishwasher. Though the light can indicate many things, these problems are common and solvable.

Bosch Classixx dishwasher:

Bosch Classixx dishwasher faces the same problem as the other ones. So, you need to reset the dishwasher to solve the problems. Sometimes, other problems might also arise that are common in dishwashers.

How to fix check water light on a Bosch dishwasher?

You have to solve the underlying issues to fix check water light on a Bosch dishwasher. If you solve the related issues, the check light will also be regular, and the problem will be fixed. So, let’s see how you can fix check water light on a Bosch dishwasher.

Changing the heating element:

You might know that a heating element problem can cause the check water light to go on. So, if you can replace or change the heating element, this might resolve the problem.

Cleaning build-up:

Another important issue is the build-up in the dishwasher. Build-ups in the dishwasher cause clogging or blocking filters in the drainage. So, if you can clean the drainage system regularly, there will be no build-up.

Replacing the drain pump:

Sometimes a problem with the drain pump causes the check water to flash. So, you can’t repair the drain pump. Because replacing or changing the whole pump system is the only solution to this problem.

Clearing residual water:

You might know that the overflood of water in the dishwasher can cause this problem. So, the residual water will give a flashing light signal.

That’s why you need to clean the residual water from the dishwasher. Moreover, filtering the replacement pump can help to solve the problem.

Changing faulty parts:

Sometimes, a faulty water supply cut-off valve, faulty water switch, faulty aqua sensor, etc., can cause the water check light to flash. These parts should be replaced quickly. The problems might be solved if you can change these faulty parts in the dishwasher.

Solving other problems:

Finally, you have to solve other problems if the above solution doesn’t work. For example, deactivating the anti-flood switch will stop the flashing.

Moreover, stopping overfilling water, changing the kinked water supply hose, cleaning blocked filters and pumps, etc., can solve the flashing water check light problem.

How do I check the water supply to my bosch dishwasher?

Faulty water supply or oversupply can cause the problem in the Bosch dishwasher. For this problem, the check water light might flash continuously. So, let’s see how you can check the water supply to your Bosch dishwasher.

Checking different parts:

You can check the sprinkler whether it is dirty or not. Then you can hold it under running water. Then you can check whether the holes are dirty or not. If these parts are dirty, the water supply will not be regular.

Check the error codes:

You can also check the error codes. If the error codes don’t show any signal, that means the water supply is okay. But if there is an error code, the water supply is going through problems.

Final Thoughts

Bosch dishwater generally works efficiently for a long time. But sometimes, some problems can cause the check water light to flash. This faulty signal can be associated with water overflow, blocked filters and pumps, drain pump problems, heating pump problems, residual water, etc.