Match the exact brand, appliance type, and displayed code first.
Use the model manual as the final authority for access steps.
Do not do this
Do not use other cycles as a workaround unless the manual allows it.
Do not bypass locks, float switches, leak sensors, or other safety systems.
Common causes include
Clogged lint screen
Crushed or kinked exhaust vent
Vent run with too many turns
Blocked exterior vent hood
Basic checks
Clean the lint screen.
Check visible vent sections for kinks or crushing.
Confirm the exterior vent can open and is not blocked.
Reset or retry steps
Whirlpool says the dryer may continue to run when the airflow warning is present, but the vent restriction should be corrected.
Touch any key to clear the displayed code only after checking airflow.
When to call a technician
Use a qualified vent cleaner for long or hidden duct runs.
Schedule service if the warning returns after the vent path is cleaned.
FAQ
What does Whirlpool Dryer code AF usually mean?
Usually indicates that the dryer detected restricted airflow through the lint screen or vent system.
Can I keep using the dryer with code AF?
Limit use to the owner-level checks described here and in the model manual. Stop using the appliance if the code returns, the appliance behaves abnormally, or a safety warning applies. Do not keep running a dryer with a known severe airflow restriction.
When should I call a technician for Whirlpool AF?
Use a qualified vent cleaner for long or hidden duct runs. Schedule service if the warning returns after the vent path is cleaned.
