Kenmore Dryer Error F20
⚡ Quick Answer: The Kenmore Dryer F20 error indicates a communication failure between the control board and the user interface, often caused by a failed heater relay ... ✅ DIY Fixable
What Does Error F20 Mean?
The Kenmore Dryer F20 error indicates a communication failure between the control board and the user interface, often caused by a failed heater relay on the main electronic control board. This issue can prevent the dryer from starting or cause it to stop mid-cycle, leading to improper heating. If you encounter this error, it's essential to determine the root cause to avoid further complications.
Common Symptoms:
- Dryer displays F20 error on control panel
- Dryer may stop mid-cycle or fail to heat properly
Possible Causes
- Failed heater relay on main electronic control board (high)
How to Fix Error F20
DIY Fix Power cycle and basic checks
- Unplug the dryer from power for at least 5 minutes.
- Check that the dryer vent and lint filter are clear of debris (may help avoid related issues).
- Plug the dryer back in and attempt to run a cycle to see if the error clears.
Technician Only Replace main electronic control board to resolve heater relay failure
- Disconnect power to the dryer.
- Access the dryer control panel according to the service manual.
- Remove and replace the main electronic control board containing the heater relay.
- Reassemble and test the dryer to confirm the F20 error no longer appears.
Parts needed: Main electronic control board
- If you are not experienced working with high voltage components
- If error persists after control board replacement
Next step
Choose the next step for 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
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
- Typical part-only price
- $120 - $280
- DIY difficulty
- Medium
- Estimated time
- 20-40 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.
Model-compatible Dryer 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.
Dryer Vent Cleaning Kit
Helps remove routine lint buildup from an accessible dryer vent path. It does not diagnose or repair an E-code or failed component.
Lint Trap Cleaning Brush
A narrow brush for routine cleaning around an accessible lint screen and housing.
Dryer Vent Hose Kit
A replacement exhaust duct option for visibly crushed or damaged external venting. Check diameter, length, local code, and installation clearance.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| note | The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering. |
|---|---|
| part_number | None |
Common Questions
What does F20 error mean on Kenmore Dryer?
F20 indicates a communication failure between the control board and user interface, often due to a failed heater relay.
Can I fix Kenmore Dryer F20 error myself?
Yes, you can power cycle the dryer and check the vent and lint filter. If the error persists, further action may be needed.
How much does it cost to fix F20 error?
Repair costs range from $150 to $400 for parts and labor, depending on the model and service rates.
When should I call a technician for F20?
Call a technician if you're not experienced with high voltage components or if the error continues after replacing the control board.
Data last verified: 2026-07-31
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