AFWhirlpool Dryer — Whirlpool Dryer AF Error Code
Restricted airflow in exhaust system
Severity
Critical
Difficulty
Easy
Est. Cost
What's Happening
The dryer's exhaust system is partially or fully blocked with lint. This restricts airflow, causes overheating, and is a fire hazard. This is one of the most important dryer maintenance issues.
How to Fix It
Clean the lint filter immediately. Disconnect the vent hose and clean the entire duct from the dryer to the exterior vent. Check that the outdoor vent flap opens freely. After cleaning, restart a timed dry cycle to clear the code.
Frequently Asked Questions
What does AF mean on a Whirlpool dryer?
AF means restricted airflow — the exhaust vent is blocked with lint. This is a fire hazard that needs immediate attention.
How often should I clean my Whirlpool dryer vent?
Clean the lint filter after every load. Have the entire vent duct professionally cleaned at least once a year, or more often if you notice clothes taking longer to dry.
Can a blocked vent damage my Whirlpool dryer?
Yes. Restricted airflow causes overheating, which can blow thermal fuses, damage the heating element, and in worst cases cause a fire. Clean vents regularly.