Jet Tech Odor / Biofilm and Grease Buildup

Strong bad odor from inside the dishwasher even when not in use

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Possible Causes

Dirty tank filters, Grease buildup in sump and hoses, Standing water in low spots of drain hose, Food debris trapped under door gasket

How to Fix / Troubleshooting

Safety first: Turn off power before deep cleaning internal areas.

  • 1. Clean filters and sump: Remove all filters and scrub with hot water and a non-abrasive brush. Wipe the sump area to remove sludge and debris.
  • 2. Sanitize interior: Run an empty cycle with a Jet Tech-approved descaler or dishwasher cleaner to remove grease and scale.
  • 3. Inspect door gasket: Gently pull back the door gasket and clean underneath with a cloth and mild detergent to remove trapped food.
  • 4. Check drain hose routing: Ensure the drain hose has a proper high loop to prevent backflow from the sink drain, which can cause odors.
  • 5. Regular maintenance: Implement a weekly cleaning routine for filters and a monthly descaling cycle.
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Repair Difficulty

Very Easy 1/5
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