How to Fix Kenmore Dishwasher Error F20

⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.

Error Code: Dishwasher Difficulty: Easy

Problem: Rinse aid sensor malfunction or low rinse aid level

⚖️ Repair Decision
✅ WORTH FIXING

Parts under $100

How to Fix Dishwasher Error

  1. Check rinse aid reservoir level and refill if needed.
  2. Clean rinse aid sensor with white vinegar to remove deposits.
  3. Test rinse aid dispenser solenoid operation.
  4. Verify sensor wiring connections and continuity.
  5. Replace rinse aid sensor if cleaning and testing fails.

Recommended Replacement Part

OEM Part #: W10879246

Estimated Market Price: $35

Check Price & Availability →

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

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Most DIY parts are $50–$250. If you have a quote, use the total.
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Expert: Mike Sullivan

EPA Section 608 Certified Technician with 18+ years experience.

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