MECH-ODOR
Whirlpool · Whirlpool WDT750SAKZ 24 in. Top Control Dishwasher
The dishwasher has a bad smell, musty or rotten. Food debris is trapped in the filter, sump, spray arm holes, or door gasket folds. Remove and clean the filter assembly (twist to unlock at the bottom of the tub). Clean the spray arm nozzle holes with a toothpick. Wipe the door gasket seal with a damp cloth — food particles collect in the gasket folds. Run a wash cycle with a dishwasher cleaner (Affresh tablet or a cup of white vinegar on the top rack). Leave the door slightly ajar between uses to allow air circulation and prevent mildew.
Error MECH-ODOR on the Whirlpool Whirlpool WDT750SAKZ 24 in. Top Control Dishwasher means: Dishwasher Odor/Smell. The top-ranked community fix is “Run Dishwasher Cleaner Cycle and Inspect Drain Sump” (medium difficulty, ~45 min, DIY cost: $10-$20). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · dishwasher
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many dishwasher repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $100-$160.
The Whirlpool Whirlpool WDT750SAKZ 24 in. Top Control Dishwasher has 8 other known error codes:
Error code MECH-ODOR also appears on 4 other Whirlpool models:
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