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Dishwasher Leaving Dishes Cloudy? Check the Filter, Spray Arms and Settings

Cloudy glassware can mean removable film, incorrect settings, blocked wash parts or permanent etching. Cleaning a user-removable filter and spray arm may improve washing but cannot reverse etching. The exact manual controls removal, cleaner, softener and maintenance-cycle instructions.

MyKeyz Editorial Team Updated 21 July 2026 5 min read
Interior view of a dishwasher showing the lower filter basket partially rotated and spray arms visible from above

Quick answer

Why do dishes come out cloudy from the dishwasher?

Let the dishwasher cool, then check whether the cloudy film wipes from one glass. Follow the exact model manual to remove and wash only its user filter and spray arms, refit them securely, and correct salt or rinse-aid settings. Use a maintenance product only when both the appliance instructions and product label approve it.

Works on

Domestic dishwashers with manual-documented user-removable filters and spray arms

Use another method for

Sealed or self-cleaning filter systems / Parts requiring tools or service-panel access / Units with leaks, electrical faults, error codes or damaged racks / Glassware with permanent etching or surface damage

What you need

What you need

Do not assume citric acid or vinegar is compatible. Use only products named for the exact dishwasher and follow both manual and label.

Difficulty
Easy
Active time
About 20 minutes
Total time
Longer only if an approved maintenance cycle is used
01

Exact dishwasher model manual

One digital or printed copy

AED 0
02

Soft nonabrasive brush

One

AED 5-15 estimate
03

Mild dishwashing liquid

A small amount only if the filter instructions permit it

AED 5-15 estimate
04

Manufacturer-approved maintenance product

One labelled dose, only when required

AED 15-45 estimate

Typical UAE retail ranges. Prices vary by pack and store, and your total is lower when you already own the reusable tools.

Step by step

How to clean your dishwasher filter and spray arms

Cool the appliance, follow its illustrated removal sequence and verify that every user part locks securely before running it.

  1. A hand hovering above the open dishwasher cavity after the appliance has been switched off and allowed to cool

    Step 01

    Cool the dishwasher and check the type of cloudiness

    Finish or cancel as the manual directs, switch off and open cautiously. Let steam and parts cool. Test one cool glass using maker guidance; haze that will not wipe away may be permanent etching.

  2. Hands rotating the filter basket anticlockwise inside the dishwasher cavity

    Step 02

    Remove only the documented user filter

    Remove the lower rack and locate the filter in the model diagram. Release it only in the shown direction. Do not guess, force a lock, reach into the sump or remove a service cover.

  3. Filter basket held under a sink tap with water flowing over it while a soft brush cleans the mesh

    Step 03

    Wash the filter gently and inspect its condition

    Rinse the removable filter in warm water. If permitted, use mild dishwashing liquid and a soft brush. Stop for cracks, tears, distortion or residue needing aggressive tools.

  4. A soft plastic pick gently inserted into a spray arm nozzle hole, with mineral deposits visible around the opening

    Step 04

    Inspect and clean only removable spray arms

    Remove a spray arm only by its documented method. Rinse it and use only the maker-approved soft tool for nozzle debris. Never use wire, enlarge holes or reach into the pump area.

  5. Filter basket being rotated clockwise back into the dishwasher cavity until it locks into position

    Step 05

    Refit and lock every component

    Refit the filter, arms and rack in the illustrated order. Confirm each lock and free arm rotation. Do not run with a loose filter, missing screen or unsecured arm.

  6. The door-mounted detergent dispenser open on an empty dishwasher, ready for a manufacturer-approved descaling product

    Step 06

    Correct settings before an approved maintenance cycle

    Check salt, softener and rinse-aid settings against the manual and water hardness. Run a maintenance cycle only with an approved product and dose. Stop for leakage, odour or an error.

Quick answers

Frequently asked questions.

Why do dishes come out cloudy from the dishwasher?

Cloudiness may be removable mineral or detergent film, poor rinsing, incorrect salt or rinse-aid settings, blocked wash parts, or permanent glass etching. Test one cool item using the maker guidance. Clean the filter and spray arms only as the model manual allows, then correct the documented water settings.

How do you clean dishwasher spray arm holes?

Let the machine cool and remove the arm only as the exact manual shows. Rinse it under warm water. Use only a manufacturer-approved soft tool, such as a toothpick on certain Bosch models, to release debris. Do not use wire, enlarge holes or force a fixed arm.

Is citric acid safe for dishwashers?

Citric acid is not universally approved for every dishwasher, coating, seal or maintenance programme. Use it only when the exact appliance manual and the descaler label both permit that product, dose and cycle. Otherwise choose the manufacturer-named cleaner. Never combine a descaler with bleach, detergent or another household cleaner.

Appliances DIY cluster

Sources and review notes

  1. Bosch: How to Clean a Dishwasher Filter - Manufacturer steps for model-manual review, filter removal, mild cleaning and secure reinstallation.
  2. Bosch: How to Clean Dishwasher Spray Arms - Manufacturer procedure for removal, rinsing, toothpick use on covered arms and refitting.
  3. Bosch Appliance Care Guide - Primary guidance on cloudy deposits, dishwasher salt, rinse aid and model-appropriate care products.