Bosch Dishwasher Beeping (Causes & Solutions) + Error Codes

Bosch Dishwasher Beeping

Most of us depend on our dishwasher to make our lives easier when we are tired after a busy day. But when our Bosch dishwasher starts to malfunction it can be a big cause for concern.

A common malfunction with Bosch dishwashers is the loud beeping sound that it sometimes makes. This grating sound is not only irritating, it often has people worried and curious to know if their dishwasher is broken and how to fix the beeping sound.

In this article, we’re going to explain all you need to know about that beeping sound coming from your dishwasher, including how to fix it.

Bosch Dishwasher Beeping (Causes & Solutions)

Why is my Bosch Dishwasher Beeping?

Bosch dishwashers have an internal computing system that triggers the beeping sound you hear when there is a malfunction or problem with the machine.

This beeping is a way of notifying you that there is an issue that needs fixing. If your dishwasher has an LCD display, it might even show an error code while beeping.

This error code will help in figuring out what the problem is. However, for dishwashers without an LCD display, you’ll have to check your machine to determine what the problem is.

Here are reasons why your bosch dishwasher could be beeping:

1- It Isn’t Draining Properly

proper drainage is the way your dishwasher is able to remove all the dirty water from the machine, so if your dishwasher is having issues draining then it will trigger the beeping signal.

Drain issues can be caused by a few reasons:

1- The drain hose is blocked with either food waste or dirt. This will restrict the flow of water from the dishwasher into your sink drain.

2- The pump coil is damaged and you need to replace it.

3- The pump to drain hose to piping connection inside the machine is clogged.

2- Water Supply Problem

Your dishwasher could also make beeping sounds if there is a poor water supply coming into the dishwasher.

There could be a problem with the water inlet valve or other issues with the piping and plumbing that are affecting the flow of water into the machine.

This would cause the machine to beep very loudly in most cases.

If your Bosch model has an LCD display, this water supply issue may show up as an E-18 error code.

3- The Door Was Not Properly Closed

An improperly latched door can also cause a beeping sound to come from a Bosch dishwasher. You could have loaded the machine wrongly and have dishes or pots blocking the door latches.

4- End of the Wash Cycle

A bosch dishwasher will typically make a beeping sound after it completes a wash cycle to let you know it is done.

This isn’t really a major problem as the operating system just wants the user to offload the machine.

5- Base Is Flooded

A leaking water connection can result in the base of your dishwasher being flooded. This will often trigger the anti-flood switch which will, in turn, raise the beeping alarm sound that you hear.

If you find that water is leaking from under your machine or water drips when you gently hit the machine after a cycle, then this is likely the issue.

6- An Issue with Internal Motors

With constant use, a dishwasher may go through normal wear and tear over time.

This can result in faulty motor parts such as an issue with the spray arms, the timer, or the reed sensors.

If your dishwasher has any of these internal issues, it will trigger the beeping sound to notify you of a problem with your machine.

Bosch Dishwasher Beep Codes

For Bosch dishwasher models with a display panel, your machine will likely beep different error codes to notify you there is an issue. Each of these codes signifies a different problem, but you can clear the error code by resetting the dishwasher.

To do this simply hold down the start button for a few seconds until the machine reboots.

Here are some definitions of the common error codes that your Bosch dishwasher will likely display:

E12This means there is limescale buildup
E14This signifies a problem with the flow meter
E15This code indicates that there is water in the base trough.
E16 & E17This code means there may be an issue with your dishwasher’s water supply and it might be filling the system.
E18This error code notifies you of an issue with the flow of water into the dishwasher. Your machine might not be getting enough water.
E22This means the filter is blocked.
E24When this code is displayed it means the dishwasher is not draining properly.

How to Fix Bosch Dishwasher Beeping?

There are different scenarios where your dishwasher beeps and in some cases, you may also hear different numbers of beeps.

Each case requires different steps to solve the issue as each scenario indicates a different problem.

Ahead, we’re going to go through all the possible situations and types of beeping that could be coming from your bosch dishwasher and how to fix the machine in each case

Bosch Dishwasher Beeps But Won’t Start

When this happens, it is most likely due to an unlatched door. To fix this, simply open the dishwasher and ensure the door is securely closed and latched.

If the latch is broken or faulty, then the beeping sound will likely continue no matter what you do.

In this case, you’ll need to replace the door latch by purchasing a new Bosch door latch and installing it. Follow the steps below to replace the latch

STEP 1: Unplug the dishwasher from the power outlet.

STEP 2: Using a screwdriver, open the dishwasher door and remove the two screws at the top of the dishwasher panel.

STEP 3: Gently pull out the dishwasher a few inches away from the cabinet.

STEP 4: You’ll find the door latch assembly on the top of the dishwasher, remove the Torx screws holding the door latch cover. The latch should be visible after doing this.

STEP 5: Remove the Torx screw holding down the latch.

STEP 6: Pull out the old latch and insert the new latch. Ensure the magnetic end of the latch touches the machine properly.

STEP 7: Put back the Torx screw for the latch and the latch covers. Then push the dishwasher back in place.

STEP 8: Replace the two screws that hold the dishwasher in place at the top. The beeping sound should be gone now that you’ve replaced the latch.

Bosch Dishwasher Beeps 5 Times

Your Bosch dishwasher might beep about 5 times in some cases. If the machine displays an error code while beeping, note down the code. This code will help you identify what the problem is so you can go about fixing it.

If there is no code and it still beeps 5 times there might be water at the base triggering the sensor. To fix this you might have to call a technician to come and check your machine.

Bosch Dishwasher Beeps 3 Times

If your Bosch dishwasher is beeping 3 times, then it likely means there is a leak and water is pooling at the base of the dishwasher.

It is very important to fix this, not only to get rid of the beeping but to also avoid any flooding in your home.

STEP 1: Check the drain filter to ensure there is nothing clogging up the drain and causing a leak.

STEP 2: Loosen the hose clamp on the water inlet and outlet pipe to check if there is any clogging or leaks around the pipes. If there is an issue, you might need to clean out any clogs in the pipe or change the pipes.

STEP 3: turn off the circuit breaker and water valve connected to the dishwasher.

STEP 4: Open the machine and use a toothbrush and dish soap to clean the seal all around the door. Then wipe it clean with a towel.

STEP 5: Open the door and use a T20 Torx bit attached to a screwdriver to undo the 6 screws at the sides of the door.

STEP 6: Close back the door and grab the door at the bottom to pull it off.

STEP 7: Pull the machine forward and tilt it backward. Then remove the faceplate with the screwdriver.

STEP 8: You’ll see a polystyrene disk floating inside the machine. This is what triggers the sensor inside the machine. Firmly pull out the sensor and the polystyrene disk from inside the machine.

STEP 9: Use a towel or sponge to clean out the water at the base. Then re-assemble the disk and the sensor.

STEP 10: Re-assemble the machine following the reverse of the steps previously used.

Tip: Use waterproofing under the dishwasher to prevent damage to the flooring and cabinets.

Bosch Dishwasher Beeps But No Display

Your dishwasher might also beep with the display unit not lighting up or showing anything. To fix the problem in this case, you’ll need to try the following methods.

Method 1

STEP 1: Turn off the circuit breaker that connects to the dishwasher and leave it off for 10 minutes.

STEP 2: Turn back on the breaker and turn on the dishwasher.

STEP 3: Try to run the dishwasher. The beeping should stop after this reset.

Method 2

If resetting the dishwasher did not stop the beeping and there is still no display, then the control board is likely damaged.

You’ll need to order a new control board to replace the faulty one. This method will take you through the best way to replace the control board and have your dishwasher back to normal.

You’ll just need to follow these key steps:

STEP 1: Unplug the dishwasher and turn off the circuit breaker powering the dishwasher.

STEP 2: Open the dishwasher door and remove the two screws that hold the dishwasher in place with a screwdriver.

STEP 3: Using a wrench, loosen the water valve connected to the dishwasher and loosen the hose clamp on the drain hose connected to the air gap with a screwdriver.

STEP 4: Pull out the dishwasher from the cabinet and tilt it to the front. Then take off the faceplate at the bottom with a screwdriver.

STEP 5: Place the dishwasher on the floor with the back facing up. Then lift up the insulation at the back. The control board will be at the bottom.

STEP 6: Use a screwdriver to push down the side tab and pull out the old control board.

STEP 7: Remove the cap covering the control board and remove all the wires and plugs connected to it.

STEP 8: Grab the new control board and remove the cap then re-connect the wires you removed in exactly the same position as the old control board.

STEP 9: Place the cap onto the control board and ensure it is secure then insert it back into the dishwasher by pressing upwards.

STEP 10: Place insulation back on and lift the dishwasher on. Use a screwdriver to re-attach the faceplate.

STEP 11: Push the dishwasher back into the cabinet and reconnect the drain hose to the air gap with a screwdriver. Also, reconnect the pipe on the water valve.

STEP 12: Secure the dishwasher to the cabinet with a screwdriver and the two screws you took off earlier. Then turn on the circuit breaker and run the dishwasher.

The beeping and display problem should be gone.

Bosch Dishwasher Beeps During Cycle

If your dishwasher beeps during the wash cycle then there is an issue with the control board on the dishwasher. To reset the electronics on the control board, turn off the circuit breaker for about 60 seconds, then turn it back on.

The beeping should stop after that. If the same beeping continues after a reset then the control board needs to be replaced.

You can always get an appliance technician to come and install the new control board by following the steps in the method above.

Bosch Dishwasher Beeps 4 Times

Beeping 4 times can be an indication that there is something wrong from inside the machine.

If this happens, check for an error code that will be displayed on the LCD screen. This code will help to identify what the issue is, so you can know how to fix it. Once you have an error code, you can refer to the list of error codes listed in this article to help identify the problem.

However, if there is no error code being displayed or your dishwasher does not have an LCD display, you’ll need to restart the machine and check for any mechanical issues.

Follow these steps to do this:

STEP 1: Unplug the dishwasher from the power outlet and wait for about minutes and turn it back on.

STEP 2: Check the rotating arm of the dishwasher to make sure there is nothing obstructing the movement. If there are any utensils or crockery blocking it, you’ll need to remove them and re-arrange them on another rack.

STEP 3: Properly close the door of the dishwasher and make sure the latch is in place.

Bosch Dishwasher Beeps At The End Of Cycle

This beeping sound comes come after a wash cycle is complete. If you do not want to hear this beeping sound after every wash, then the best thing to do is to reduce the volume of the beep or turn it off completely.

To do this, ensure to follow the steps below:

STEP 1: Power off the dishwasher.

STEP 2: Turn back on the machine while also holding the right cancel/reset button

STEP 3: Press the cycle select button to go through the volume options for the beep sound and choose the one you want. As you press it you’ll notice the different levels. The beep has 3 volume levels and silent.

STEP 4: Press the power button to take you out of options mode and save your volume setting.


Bosch dishwasher beeping sounds are usually quite annoying and can have you confused about what to do. But, you now know why your dishwasher is beeping and how to detect what the problem is.

We have also covered how best to solve the beeping issue in all possible scenarios, so you can continue operating your dishwasher without any concerns and unpleasant sounds.

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