Our dishwashers are fitted with a self-diagnosis system, which in the rare case of a fault will help to report what the problem is. If the E18 error code appears on the appliance display it means that the water supply has been cut off or it is too low.

Step by step guide

Built-in Bosch dishwasher with door open

1. Switch off and unplug the appliance.

2. Check the inlet and outlet hoses behind the appliance are not trapped or kinked.

3. Turn off the water supply, remove the inlet hose and place a bucket under the water supply. Then turn on the water, check it is running at 10 litres per minute, turn off the water supply and reattach the inlet hose.

4. Remove the detachable filter in your inlet hose and clean it under the tap. After that, reattach the filter securely.

5. Finally, reattach the hose, turn back on the water supply and plug in the appliance.

If you are having trouble resolving the fault, we recommend booking an engineer appointment. You can also contact us for more information.

Contact Us

Do you need further help and support? Our customer service team will be able to provide the help you need.

Repair Service

Need to book a repair? Not a problem. We can arrange for an engineer to repair your appliance, both in and out of warranty.

User Manuals

If you need any help and support that is specific to your Bosch appliance model, your user manual is the best place to find this information.

Bosch Store

Search for original spare parts and buy tested and approved accessories and care products for your Bosch appliances in the Bosch store.