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Error code · Dryer

Whirlpool Dryer AF Code: Check Vent Light and Airflow

AF on Whirlpool electric and gas dryers in the WED and WGD series, including Cabrio and Duet generations, ties to the Check Vent indicator found on certain models with automatic cycles. During the sensing phase at…

Medium · inspection needed
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Code
AF
Appliance
Dryer
Brand
Whirlpool
Warranty
30-day workmanship

What AF means

AF on Whirlpool electric and gas dryers in the WED and WGD series, including Cabrio and Duet generations, ties to the Check Vent indicator found on certain models with automatic cycles. During the sensing phase at the start of a cycle, the dryer watches airflow through itself and the vent system, and the light comes on if the vent is blocked or airflow is low. The dryer keeps running, but drying slows. The light clears at the end of the cycle, when you touch Power, or when you open the door.

Common causes of AF

  • Lint screen packed with lint
  • Crushed or kinked vent duct behind the dryer
  • Lint buildup in the vent run or outside hood
  • Outside vent flap stuck shut
✓ One safe check you can try

1. Clean the lint screen: pull it straight up and roll lint off with your fingers. 2. Check that the vent hose behind the dryer is not crushed or kinked. 3. Go outside and make sure the vent hood flap opens and is free of lint. 4. Run the cycle again. The light stays on during a cycle until the cause is resolved.

! Why to stop there
  • Long or bent vent runs can restrict airflow well beyond what you can see from the dryer
  • Low airflow lengthens drying and can build heat, so it should not be ignored
  • We check airflow and the vent path, then give a written price before any cleaning or repair
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
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Other Dryer codes

LocWhirlpool Dryer Code Loc: Control Lock Turned On by Mistake PFWhirlpool Dryer PF Code: Power Failure During a Cycle tSWhirlpool Dryer Code tS: Thermistor Reading Out of Range Water TankWhirlpool Dryer Message Water Tank: Tank Full or Not Seated F9E2Whirlpool Dryer Code F9E2: Water Tank Full, or Reset Only FCE1Whirlpool Dryer FCE1 Code: Breaker Reset Only FEWhirlpool Dryer Code FE: Power Source Problem at the Outlet hEWhirlpool Dryer hE Code: Heating Error, Too Low or Too High
AFAF questions
Can I keep using the dryer with the Check Vent light on?

The dryer keeps running, but poor airflow slows drying and strains it. Clear the lint screen and vent first. A light that stays on after that deserves a vent inspection.

How do I clear the AF light?

It clears when the cycle ends, when you touch Power, or when you open the door. It will light again next cycle if the blockage is still there.

Do you clean dryer vents?

We check the vent path as part of diagnosing airflow. Tell us about the run length and where the vent exits, and we will explain what we find and quote in writing.

Book a visit

Still seeing AF?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 589-6107