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Maytag Washing Machine Error Code F20

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: July 19, 2026
⚠ High Severity 🔧🔧 Moderate DIY

No water detected — fill failure

The most common cause of the F20 error on a Maytag washing machine is supply valves closed or low pressure (~35% of cases); start with: check the supply valves.

💰 DIY cost: $35–$80 👨‍🔧 Pro cost: $150–$300 Save $115+ by doing it yourself
Maytag Washing Machine error code F20 on the display panel
How the F20 code appears on a Maytag washing machine display

What Does Error Code F20 Mean on a Maytag Washing Machine?

No water detected — fill failure.

F20 (FH on earlier models) fires when the control board expects water in the tub but the pressure sensor detects no rise, or an insufficient rise, within the allotted fill time. It points to water not reaching the tub — a closed supply, clogged inlet screens, or a dead inlet valve — rather than a drain or overfill fault. This distinguishes it from F8E1 (fill-related flow issues) and F22 (door lock), and from pressure-sensor or air-hose faults that can mimic a no-fill condition.

Models affected: Front-load washers on the Whirlpool control platform, including models such as the MHW6630HW; the FH equivalent appears on older units
What owners report: Owners commonly report F20 appearing right after installation or a move, when a supply valve was left partly closed or a hose kinked. Cleaning the mesh inlet screens after municipal work or a water-heater flush is a frequently reported quick win. Low household water pressure can also trigger it falsely.

What Causes Error Code F20?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

  1. 1
    Supply valves closed or low pressure 35% of cases
  2. 2
    Inlet screens clogged 30% of cases
  3. 3
    Inlet valve failure 20% of cases
  4. 4
    Pressure sensor / air hose fault 15% of cases

How to Fix Maytag Washing Machine Error Code F20

🔧🔧 Moderate DIY Est. time: 30–60 min
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Check the supply valves

    Confirm both hot and cold valves are fully open.

  2. 2

    Clean the inlet screens

    Shut off water, disconnect the hoses, and clean the mesh inlet screens.

    ⚠️ Shut off the water supply first.
  3. 3

    Test the inlet valve

    Test the inlet valve solenoids for continuity.

    🔩 Maytag washer inlet valve ($35–$80)

How to Reset Error Code F20

Confirm supply open and clean inlet screens. Hold Start to resume. Replace inlet valve if F20 persists.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

Full Maytag washer reset guide → Enter diagnostic mode → Symptom guide: Washer not filling →

Did this guide fix your appliance?

When to Call a Professional

If supply and valve are good and F20 persists, the pressure sensor or control has failed.

Average professional repair cost for this issue: $150–$300

Related Error Codes

F8E1
Low water fill detected
⚠ Medium Severity
F22
Door lock fault — door will not lock
⚠ Medium Severity

Same Code on Other Brands

Error code F20 appears on these other brands too. See every brand that shows F20 →

Whirlpool logo
Whirlpool Washing Machine F20
No water detected entering the machine
Kenmore logo
Kenmore Washing Machine F20
Water supply error — no water detected
Miele logo
Miele Washing Machine F20
Heating fault — water not reaching target temperature

Find Replacement Parts

Use these links to find the exact replacement parts for your Maytag Washing Machine:

🔩
Search PartSelect
Maytag Washing Machine repair parts
🔧
Search RepairClinic
Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

More Maytag Washing Machine Error Codes

F9E1 Drain failure — water not draining F1E1 Main electronic control board failure SUD Excessive suds — too much detergent F5E2 Lid will not lock — latch blocked or failed F5E1 Lid lock fault — cannot lock or unlock F5E3 Lid will not unlock — latch or control fault

Frequently Asked Questions

Can I keep using my Maytag Washing Machine when error F20 appears? +
It is not advisable. The washing machine may still power on, but running it while F20 is active can worsen the water-supply fault or damage related parts. Treat it as a soon-as-possible repair.
What most commonly causes F20 on a Maytag Washing Machine? +
Across reported Maytag washing machine repairs, the most frequent is supply valves closed or low pressure (35% of cases), inlet screens clogged (30%), then inlet valve failure (20%). Check them in that order before replacing any parts.
F20 keeps coming back after a reset — what should I check next? +
A reset only clears the stored F20 fault; if it returns, the water-supply problem is still present. Move on to the physical checks — check the supply valves, then clean the inlet screens — since the code will reappear until the root cause is resolved. This is a moderate job — a multimeter and some disassembly are usually involved.
How much does it cost to fix Maytag Washing Machine error F20? +
A DIY repair typically runs $35–$80 in parts, versus $150–$300 for a professional service call, so handling it yourself saves around $115. Expect the work to take roughly 30–60 minutes.
Which Maytag Washing Machine models show error F20? +
F20 is documented on Front-load washers on the Whirlpool control platform, including models such as the MHW6630HW; the FH equivalent appears on older units. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

Content verified against manufacturer service documentation. Last verified: July 19, 2026.

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