Whirlpool · Dryers
Whirlpool Dryer AF or Check Vent: Airflow Checks
THE SHORT ANSWER
Airflow through the dryer or exhaust system is restricted.
AF or Check Vent indicates restricted airflow. The dryer may continue running, but clearing the display does not remove an obstruction.
Clean the lint screen.
Stop for burning smells or overheating. Do not move a gas dryer or disturb its gas connection.
WHAT YOU MAY NOTICE
Symptoms to record
- Longer drying time.
- AF or Check Vent stays visible.
UNDERSTAND THE POSSIBILITIES
Causes & useful observations
A code identifies a condition. It does not, by itself, confirm which part needs repair.
| Possible cause | What to look for | Safe check / next step |
|---|---|---|
| Lint restriction | Lint screen or outlet is obstructed. | Check accessible screen and exterior hood. |
| Crushed or unsuitable duct run | Visible duct is kinked or compressed. | Compare routing with installation instructions. |
WORK THROUGH THE BASICS
Safe troubleshooting checks
Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.
Remove lint from the screen before another load.
What to noteThe screen is clear.
Check the visible dryer-to-wall section and exterior hood for lint or damage.
What to noteNo visible restriction remains.
Persistent AF warrants cleaning the entire vent route by a venting specialist.
What to noteHidden restrictions are addressed.
THE DETAILS MATTER
Scope & troubleshooting notes
Model variation
Check Vent is an Automatic Cycle feature on certain models; it can stay lit until the cycle finishes.
YOUR NEXT DECISION
When to stop and get help
Use a venting specialist if the message persists after accessible checks.
THE EVIDENCE
Sources & verification
Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.
- AF or Check Vent - Dryer
Whirlpool · Manufacturer support · Checked
Airflow restriction; screen, duct and exterior hood checks — Vented Whirlpool dryers with AF or Check Vent indications
- Error Codes in Dryers
Whirlpool · Manufacturer support · Checked
AF, L2 and PF entries — Whirlpool dryers using the listed displays