Maytag Dishwasher Leaving Grit on Dishes

Quick answer

Grit on dishes often means a clogged filter or low water pressure. Clean the filter and check the water supply for debris. If the problem continues, inspect the spray arms and water inlet valve.

Confirm the symptom

• Dishes have a gritty or sandy texture after washing
• Grit is visible on plates, silverware, and glassware
• Grit is not on the dishes before washing
• Issue persists after multiple wash cycles

Tools and prep

• Screwdriver (if needed to access filter)
• Soft brush or toothbrush
• Clean cloth or towel
• Bucket or container for debris
• Protective gloves
• Turn off dishwasher power at the circuit breaker
• Shut off water supply to the dishwasher

Step-by-step troubleshooting

1. Clean the Dishwasher Filter
   Do: Remove the filter from the bottom of the dishwasher and rinse it under running water. Use a soft brush to remove any trapped grit or debris.
   Observe: Filter is free of visible grit and debris.
   Means: Clogged filter was the source of grit.
   Next: Run a test cycle with a rinse aid to see if the grit is gone.
2. Inspect the Spray Arms
   Do: Remove the spray arms and check for clogs in the spray holes. Use a toothpick or small brush to clear any blockages.
   Observe: Spray arms are clear and water flows freely through the holes.
   Means: Clogged spray arms were distributing grit.
   Next: Reinstall spray arms and run a test cycle.
3. Check Water Supply for Debris
   Do: Inspect the water inlet valve for sediment buildup. Disconnect the water supply line and flush it with clean water.
   Observe: Water supply line is free of grit and debris.
   Means: Debris in the water supply is causing grit on dishes.
   Next: Reconnect the water supply and run a test cycle.
4. Test Water Pressure
   Do: Check the water pressure using a pressure gauge. Ensure it is within the recommended range (20–120 psi).
   Observe: Water pressure is within the normal range.
   Means: Low water pressure is not the cause of grit.
   Next: If pressure is low, check for a partially closed shutoff valve or a clogged water filter.
5. Clean the Dishwasher Interior
   Do: Wipe down the interior of the dishwasher with a damp cloth to remove any residual grit. Check for any loose particles that might be dislodging during cycles.
   Observe: Interior is clean and free of loose grit.
   Means: Loose grit in the interior is being redeposited on dishes.
   Next: Run a test cycle with a rinse aid to ensure the grit is gone.
6. Run a Vinegar Cycle
   Do: Place a cup of white vinegar in a dishwasher-safe container on the top rack. Run a hot water cycle without dishes to clean the interior and remove mineral buildup.
   Observe: Vinegar helps dissolve mineral deposits and grit.
   Means: Mineral buildup was contributing to the grit issue.
   Next: Run a test cycle with a rinse aid to confirm improvement.

Common causes

Parts matching

Common parts that may be needed to fix grit on dishes include:

• Dishwasher Filter – Regular cleaning or replacement can resolve grit issues.
• Spray Arms – Clogged spray arms can be cleaned or replaced.
• Water Inlet Valve – A faulty valve can introduce debris into the dishwasher.
• Rinse Aid – Using rinse aid can help reduce mineral buildup and grit.
• Water Pressure Regulator – If low water pressure is the issue, a regulator may be needed.

Always ensure the dishwasher is powered off and the water supply is shut off before replacing or cleaning parts.

When to call a professional

• Grit continues after cleaning the filter, spray arms, and checking the water supply.
• You notice a foul odor or water leakage along with the grit issue.
• The dishwasher's water pressure is consistently low despite checking the shutoff valve.
• You are unable to locate or access the filter or spray arms for cleaning.
• The water inlet valve shows signs of damage or corrosion.
• The problem persists after replacing the filter and spray arms.

FAQ

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