Bosch Dishwasher Error Codes

Dishwasher error codes are specific codes that appear on the dishwasher’s display or control panel, indicating a problem or malfunction with the dishwasher. The error codes can help diagnose the issue and provide a solution to fix it. The exact error codes can vary depending on the make and model of the Bosch dishwasher, but here are some common error codes you may encounter:

E01 or E1

This error code indicates a water supply issue, such as low water pressure or a blocked water inlet filter.


E02 or E2

This error code means there is a problem with the dishwasher’s temperature sensor or heating element. It could be caused by a faulty sensor or heating element or a problem with the dishwasher’s control board.


E03 or E3

This error code typically indicates a problem with the dishwasher’s heating system. It could be caused by a faulty thermostat, heating element or a problem with the dishwasher’s control board.


E04 or E4

This error code means there is a problem with the dishwasher’s water level system. It could be caused by a faulty water inlet valve or a problem with the dishwasher’s control board.


E05 or E5

Door latch or lock issue, such as a faulty latch or lock, or a problem with the dishwasher’s control board.


E06 or E6

Water sensor or float switch issue, such as a faulty sensor or switch, or a problem with the dishwasher’s control board.


E09

This error code indicates a problem with the dishwasher’s heating system. It could be caused by a faulty temperature sensor, heating element or a problem with the dishwasher’s control board. If you see the error code E09 then the water in the dishwasher is not heating up. Your Bosch dishwasher detects the cold water and stops the rinsing process.

To confirm a heating pump fault, remove the dishwasher from the power supply and pull it out for access. At the back, you’ll find a metal cover on the bottom side fixed with two Torx screws. Remove this, and then the insulation fleece.

Now disconnect the plug of the heating pump – it has two red cables and one green & yellow cable. Take a voltmeter and set the device to resistance measurement. Hold the contacts of the voltmeter at the two connections where the red cables were connected. The heating pump should have a resistance of about 20 Ohm. If a completely different value or infinite resistance is displayed, the heating pump is defective.

A replacement heating pump is a fairly expensive part. Ambitious folk can carry out the replacement themselves in around an hour. With older appliances, repair is in many cases not worthwhile from a financial point of view as the repair cost will be approaching the price of a brand new dishwasher.


E13

Drain issue, such as a clogged drain pump or filter, or a problem with the dishwasher’s control board.


E14

Reed switch issue, which detects the position of the dishwasher’s door.


E15

The error code E15 on Bosch Dishwashers can have two causes. Firstly, the water supply may be disturbed by the flow sensor and secondly, the safety switch in the basin may be activated. In this case, the dishwasher would no longer be able to be switched off.

The fault that this error code is detecting is rarely due to the water supply. The first thing to try is unplugging the dishwasher from the mains for at least 30 minutes. During this time, water that has got into the basin can dissipate and the dishwasher will work again once the power is restored.

In most cases the cause of the error code is that the pump head has become leaky. This can be sealed again with a new silicone sealing ring. The leakage of the pump head usually occurs at high temperatures. The pump head deforms and water can run into the floor pan. To prevent this problem from recurring, the dishwasher bottom should be adequately sealed.

How do I remove water from the basin?

The dishwasher should always be disconnected from the power supply. Then remove the filter so that you can scoop the water out of the dishwasher using a cup. The rest of the water can then soaked up with a cloth so that the dishwasher floor is completely dry. The basin of the dishwasher must then be dried. This is done by removing the front panel of the dishwasher. And then removing the basin so that you can dry it completely with a cloth. In most cases, the error code E15 disappears after all this has been done.

For more information about why your dishwasher isn’t draining, and how to fix it, go to Bosch Dishwasher Not Draining.


E16

This error code means that the dishwasher is not getting enough water, and it is usually caused by a faulty water inlet valve or a problem with the dishwasher’s water supply.


E17

This error code indicates that the dishwasher is not draining properly, and it is often caused by a clogged drain hose or filter.


E18

This error code means that the dishwasher’s pump is not working correctly, and it is usually caused by a problem with the circulation pump or drain pump.


E19

This error code indicates a problem with the dishwasher’s control module, and it may require a replacement.


E20

This error code indicates that there is a problem with the dishwasher’s drying system, and it is often caused by a faulty fan or heating element.


E22

This error code means that there is a problem with the dishwasher’s circulation pump, which moves water through the dishwasher’s spray arms. It could be caused by a faulty pump motor or a problem with the dishwasher’s control board.


E23

This error code indicates a problem with the dishwasher’s drain system, either the drain pump or the dishwasher’s control board.


E24

This error code indicates that there is a problem with the dishwasher’s drain pump or drain hose, and it could be caused by a clogged drain hose or a faulty drain pump.


E25

This error code is similar to E24 and indicates a problem with the dishwasher’s drain system, such as a clogged drain hose or a faulty drain pump.


E26

This error code means that the dishwasher is not getting enough water, and it could be caused by a problem with the water supply or a faulty water inlet valve.


Please note that the specific error codes and their meanings may vary depending on the model and year of your Bosch dishwasher. If you encounter an error code, consult your user manual or contact a professional technician for assistance.