Kenmore Washing Machine: error code F20
What is this symptom?
If your Kenmore washing machine displays the F20 error code, it indicates that the washer is not filling with water due to insufficient water supply or issues with the water level detection. This can disrupt your wash cycle, leaving your laundry incomplete. Common causes include blocked hoses, faulty inlet valves, or water pressure problems.
Important Tips for Kenmore Models
- F20 specifically indicates insufficient water supply or water level detection issue on Kenmore washers.
- Flood Safe inlet hose devices can falsely trigger F20 by shutting off flow.
Possible Causes
Insufficient water supply to washer
How to Identify: Washer fails to fill or fills very slowly when F20 appears; testing hoses shows low flow/pressure at ends.
Part: Water supply hoses and home water supply
Kinked, damaged, or blocked inlet hoses
How to Identify: Hoses bent sharply, crushed, or showing blockage signs; restoring straight hose fixes flow.
Part: Inlet hoses
Faulty water inlet valve
How to Identify: Multimeter test out of spec; washer still shows F20 despite good water supply and clear screens.
Part: Water inlet valve
Pressure switch or pressure hose issue
How to Identify: Washer doesn’t detect water level changes; pressure hose clogged/leaking.
Part: Pressure switch / pressure hose
Control board or wiring fault related to water sensing
How to Identify: Other causes eliminated, and diagnostic cycle points to electronic detection error.
Part: Control board / wiring
DIY Solutions
Check water supply and valves
- Ensure both hot and cold faucets connected to washer are fully open.
- Disconnect water hoses and place ends into a bucket to check flow and pressure from home supply.
- If flow is weak or no water, address home plumbing or adjust valves.
Inspect and clean inlet hoses and screens
- Turn off water supply and unplug washer.
- Disconnect inlet hoses from washer and check for kinks or damage.
- Inspect and carefully clean inlet screens on water inlet valve with brush.
- Reconnect hoses, turn on water, and test washer.
Next step
Choose the next step for error code F20
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Water Inlet Valve
Controls the flow of hot and cold water into the appliance.
- Typical part-only price
- $25 - $60
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Pressure Switch
Detects the water level inside the tub and signals when to start or stop filling.
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
Model-compatible Washing Machine parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
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Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Washing Machine Cleaner Tablets
Routine tub-cleaning supplies for residue and odor control. They do not repair a mechanical, drainage, or electronic fault.
Braided Washer Inlet Hoses
A maintenance replacement option for visibly worn external fill hoses. Verify thread size, length, and hot/cold connection requirements.
Washer Drain Hose Holder
Helps secure an external drain hose at the standpipe. It does not correct an internal pump or control fault.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Professional Repairs
Replace water inlet valve
Pressure switch or pressure hose repair/replacement
Control board diagnostics and possible replacement
When to Call a Professional
Preventive Maintenance
-
Inspect inlet hoses and screens: Water supply related F20 and similar issues
Frequency: 6–12 months -
Run diagnostic cycle periodically: Early detection of sensor and fill issues
Frequency: annually
Frequently Asked Questions
Why is my Kenmore Washing Machine error code F20?
How do I fix Kenmore Washing Machine error code F20 myself?
How much does it cost to fix error code F20?
When should I call a technician for error code F20?
References & Sources
Community Analytical Insights
Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions
Common Issues Reported by Users
- Water supply issue (e.g., closed valves, kinked hoses)
- Faulty water inlet valve
- Clogged or dirty filter screen in the inlet hose
User Suggested Solutions
-
Check the water supply valves to ensure they are fully open and inspect the hoses for kinks or blockages. If necessary, straighten the hoses or replace them.
-
Inspect and test the water inlet valve for functionality. If defective, replace the water inlet valve.
-
Remove the inlet hoses and clean the filter screens located inside the valve connection. Reattach hoses and test the machine.
Limited-source guidance; percentages and success-rate claims are not shown
View
Sources
Data compiled from real discussions on r/appliancerepair and r/Appliances:
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