How to Fix Whirlpool Washer Error F20

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

Error Code: Washer Difficulty: Easy

Problem: No water detected entering washer during fill cycle

⚖️ Repair Decision
✅ WORTH FIXING

Parts under $100

How to Fix Washer Error

  1. Verify both hot and cold water supply valves are fully open.
  2. Disconnect fill hoses from washer inlet valves and place in bucket.
  3. Turn on water supply briefly to verify adequate flow (should fill bucket rapidly).
  4. Clean inlet valve screens by removing hoses and brushing debris from brass fittings.
  5. Check for kinks in fill hoses or excessive length (>6 feet restricts flow).
  6. Access inlet valve assembly behind rear panel – test solenoid coils with multimeter (should read 500-1500 ohms).
  7. If solenoids test open/infinite resistance, replace water inlet valve assembly W
  8. Verify pressure switch hose is connected and not leaking air (causes False ‘full’ detection).
  9. Test operation with both hot and cold cycles to confirm proper fill.
  10. If water flows but error persists, replace pressure switch W

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Recommended Replacement Part

OEM Part #: W10345320

Estimated Market Price: $40

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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When It’s Better to Replace Than Repair

Sometimes replacing an appliance makes more financial sense than putting more money into repairs.
Here are a few signs it may be time to shop for a new one:

For repair parts, verify exact fit with the full washer model number before buying; these links are general replacement-appliance shopping options.

  • Appliance over 8-10 years old
  • Repair cost over 50% of replacement
  • Multiple recent breakdowns
  • Major component failure

Recommended Replacement Options

Budget Option

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Mid-Range Option

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Premium Option

Top Rated Washers Over $1,000

  • Top-of-the-Line Performance & Technology
  • White-Glove Delivery and Haul-away eligible
  • Comprehensive Warranty & Support Options


View Top Rated Models & Delivery Options

Why Upgrade via Amazon?

  • Fast, Scheduled Delivery – You pick the date and time
  • Expert Installation – Professional setup available for most models
  • Old Appliance Haul-away – They’ll take your broken unit when they leave
  • Easy Returns – Buy with confidence from a leader in customer service

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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.

Read Editorial Standards →

Browse all Whirlpool error codes: Whirlpool Error Codes

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