Kenmore dryer AF error code
- Dryer
Kenmore dryer AF means restricted airflow — the exhaust path is blocked enough that clothes take longer to dry and the dryer may shut off heat to protect itself. On WED4815EW and similar electric models, a full lint screen, crushed flex hose, or blocked roof cap cause most AF codes before any sensor fails. Treat AF as a vent-cleaning job first, not a parts order.
Reviewed August 2025 · sources below
Safe to keep using?
No safety issue
This is a status or lock code, not a hardware fault.
How to fix AF
- Pull the lint screen and wash it if dryer-sheet residue coats the mesh — vacuum the filter slot.
- Disconnect the 4-inch vent hose behind the dryer and inspect for kinks, crushing, or lint packing inside the hose.
- Check the exterior vent hood — the damper should swing freely and you should feel strong airflow when the dryer runs.
- Remove lint from the blower housing opening if accessible from the back panel.
- Run a timed dry cycle and confirm warm air at the outside vent — AF should clear once airflow is restored.
Call a pro when: Call a vent cleaning service for long roof runs, or if exterior airflow stays weak after cleaning the filter and hose.
Next step
Still having trouble after the code fix?
This code is usually a status or maintenance notice, not proof of a failed part. Try the steps above first; then describe what still isn't working.
Free guided checks · No account required · Don’t open live electrical, gas, or refrigerant equipment
What AF means
Restricted airflow — the lint screen or vent is clogged, crushed, or kinked.
Likely causes
Lint builds up in the filter, hose, or outdoor vent and trips the airflow sensor.
Check: Clean the lint filter, then check the rear hose and outdoor vent flap for lint or a crushed duct.
Est. cost: $0–$0
Too many elbows or a crushed flex hose chokes airflow even after you clean lint.
Check: Run the dryer and confirm air is blowing outside. Shorten or replace crushed duct.
Est. cost: $0–$40
Guided repair checklist
Complete the safe checks one at a time. Progress is saved for this browser so you can continue later.
0 of 5 checks recorded
Recommended next action
Start with this check before considering replacement parts.
Check 1 of 5
Pull the lint screen and wash it if dryer-sheet residue coats the mesh — vacuum the filter slot.
Did the repair resolve the issue?
Restoring repair progress…
Questions about AF
What does AF mean on a Kenmore dryer?
AF indicates restricted airflow — the lint screen, vent hose, or exterior cap is blocking exhaust.
Is AF a fire hazard?
Yes — restricted dryer vents are a leading cause of house fires. Clean the full vent run promptly.
How do I reset Kenmore dryer AF?
Clean the vent path, power off 5 minutes, then rerun. AF clears when the dryer detects normal airflow again.
Do I need parts for Kenmore AF?
Rarely — full vent cleaning fixes most AF codes. Replace flex hose only if it is crushed or torn.
Kenmore AF on specific models
Other Kenmore Dryer codes
Prevent this problem next time
- Clean the lint filter before every load
- Have the vent professionally cleaned about once a year
Sources
Manufacturer meaning
The exhaust is restricted — the dryer cannot vent hot air.
FixApplianceCode guidance
Clean the lint filter and exhaust vent. Do not order a part until airflow is restored.
Source type: Manufacturer
Source: Manufacturer dryer airflow / vent documentation
Last reviewed: 2026-08-24
Repair guidance is for informational purposes only. We do not guarantee that any fix will resolve your issue, and you assume all risk when following these steps. Terms & disclaimer
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