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How to Fix a Dishwasher Not Cleaning Properly

Quick Answer

Clean the filter, check the spray arms, and use the correct detergent.

How to troubleshoot a Dishwasher Not Cleaning Properly

A dishwasher that leaves food debris on dishes is frustrating. This guide covers diagnosing and fixing cleaning issues.

Step-by-Step Fix

  1. Remove and clean the filter at the bottom of the dishwasher.
  2. Check the spray arms for blockages - use a pin to clear blocked holes.
  3. Check the water temperature - it should be at least 50 degrees Celsius.
  4. Use a dishwasher cleaner to remove grease and limescale.
  5. Use the correct amount of detergent for your water hardness.

Common Error Codes

CodeMeaningResolution
Food remainsBlocked filter or spray armsClean the filter and spray arms.
Cloudy glassesHard water or too much detergentUse a rinse aid and adjust detergent.

Frequently Asked Questions

Why is my dishwasher not cleaning properly?

A blocked filter, clogged spray arms, or incorrect detergent.

How often should I clean the dishwasher filter?

Monthly to prevent blockages.