Dishwasher Not Cleaning Dishes Properly

Gritty or filmy dishes usually mean blocked spray arms, a dirty filter, or poor loading — all easy to fix.

By Priya RamanDecember 30, 20253 min read read

Written by Wade Holbrook, Lead Technician — True Fix Dallas. Factory-trained, EPA-certified, 9 years servicing Dallas–Fort Worth.

Poor cleaning is rarely a dead dishwasher — it is almost always a water-flow or loading issue.

Clean the Filter

A clogged filter recirculates dirty water over your dishes.

Fix: Remove and rinse the filter at the tub floor weekly.

Mineral deposits and food bits block the spray holes, weakening the wash.

Fix: Pull the spray arms and clear each jet with a toothpick or wire.

Overcrowding blocks spray, and old detergent loses potency.

Fix: Leave space between items and use fresh detergent stored dry.

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