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Descaling a dishwasher

Dishwashers are used on a regular basis which means that limescale can build up easily, especially if you live in a hard water area. To keep your dishwasher working as efficiently and effectively as possible, and to ensure that your dishes come out perfectly clean, regular descaling is important.

It's for this reason that we highly recommend descaling your dishwasher at least once a year with our tested and approved dishwasher descaler. This professional care product protects the appliance against the build-up of limescale deposits, which can prolong the lifetime of your dishwasher and improve its performance. Please carefully follow the steps shown below for effective descaling results.

Step by step guide

Dishwashers fitted with Machine Care

1. Switch on the empty dishwasher.
2. Add the contents of the Quick Descaler.
3. Run the Machine Care programme.

Dishwashers without Machine Care

1. Switch on the empty dishwasher and select a programme at the highest possible temperature.
2. Open the dishwasher carefully after 30 minutes and add the Quick Descaler.
3. Close the dishwasher door and allow the programme to run to completion.
4. Run the programme again for thorough cleaning.

How to clean a dishwasher

Cleaning your dishwasher periodically can help improve the performance and prolong the lifetime of the appliance. Discover our easy-to-follow care guide to get started.

How to clean the dishwasher spray arms

Debris can get trapped inside of the spray arm so it's important to periodically clean them out. Not sure how it's done? Follow our guide below.

How to clean glass in the dishwasher

Cleaning delicate items such as a wine glass, or a glass tray in the dishwasher requires some special treatment. Our useful guide will take you through our top tips and tricks.

How to use rinse aid

Rinse aid is a surfectant product that improves both cleaning and drying results. We recommend using it as part of every cycle in order to get the most out of your dishwasher. Find out more below.

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.