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Whirlpool Dryer · Error Code
CODE AF · also shows A-F

Whirlpool AFRestricted airflow

A Whirlpool AF means restricted airflow — the dryer detected its exhaust can't breathe. It's not a broken part; it's a warning that a clogged lint screen or blocked vent is choking the dryer (and risking a fire). Clean the screen and the whole vent run to the outside. A vent-cleaning kit makes short work of it.

🔧 From our repair bench: AF is the dryer telling you to clean the vent. Do it — a blocked vent is the top dryer-fire cause.

🐜 Straight talk: this points you at the likely cause — it's not a guarantee, and every machine is different. Cut the power (and shut off gas or water) before you touch anything, test to confirm the part is actually bad before you buy, and if it's beyond you, get a pro. No shame in that.

What the code means

AF: Restricted airflow

Restricted airflow.
Most likely causes
  • Clogged Lint Screen/Vent
  • Crushed Transition Hose
  • Blower Wheel
The 2-minute test → Clean lint path + vent run; verify exhaust flow.
The kit

The Tools to Test + Fix With

You don't need a shop full of tools — you need these. The multimeter is the one that pays for itself the first time it stops you buying the wrong part on a fault code.

Digital multimeter

Test a suspect part for continuity BEFORE you buy — the single best way to avoid replacing the wrong thing on a fault code.

🔎 On Amazon →

Nut driver set (¼" + 5⁄16")

Most appliance panels are held on with ¼" and 5⁄16" hex screws.

🔎 On Amazon →

Screwdriver set (Phillips/flat/Torx)

Covers the odd panel screw and the Torx fasteners many brands use.

🔎 On Amazon →
Fix it — two honest options

The Fix — Free Checks First, Then the Part

Work top-down: the free checks before you spend a dime, and test to confirm the part is actually bad before you buy. When it is a part, you get both options — the genuine OEM part sourced through us and shipped to your door, or a budget aftermarket part on Amazon. Your call.

Free fixFree

No part — clean the lint screen & vent

Clean the lint screen and clear the entire duct to the exterior flap. Free, and it's the actual fix.

✅ No part needed — try this first
Easy DIY$15–35

Dryer vent cleaning kit

A rod-and-brush kit reaches the wall duct a hand can't. The right tool for AF.

Prices shown are typical aftermarket ranges and vary by brand and model — genuine OEM is priced by quote when you request it. Amazon links open a search so you can match your exact model number; as an Amazon Associate, Appliance Ant may earn from qualifying purchases at no extra cost to you. Always confirm the part fits your model.

Can you fix it yourself?

Safe to Try · Know the Risk · Call a Pro

General guidance, not professional advice. Always unplug the appliance (or shut off the gas/water) before you check anything. If it feels beyond you, that's exactly when to get a pro.

✅ Safe to try yourself

  • Clean the lint screen every load.
  • Clear the full vent duct to the outside flap with a brush kit.
  • Confirm the exterior flap opens and isn't matted with lint or a bird nest.

⚠️ Doable — know the risk

  • Replacing a crushed transition hose — easy; unplug and pull the dryer out.

🛑 Call a pro — don't touch this

  • A long/complex roof vent you can't safely reach.
Is it worth fixing?

The Honest Call

Free-to-cheap and important — a clean vent dries faster and prevents fires. A $15–35 kit is the whole cost.

In Middle Tennessee or Louisiana?

Don't want to DIY it? Our own family of technicians will come clear that AF for you — honest flat pricing, usually same-day, 4.5★ from 1,000+ neighbors.

🔧 Get it fixed by our techs →
FAQ

People Also Ask

What does AF mean on a Whirlpool dryer?
Restricted airflow — the dryer sensed its exhaust is blocked. It's a warning, not a broken part. Clean the lint screen and the full vent run to the outside.
How do I clear a Whirlpool AF code?
Clean the lint screen and clear the entire vent duct to the exterior flap (a vent brush kit helps). Make sure the outside flap opens freely.
Related codes

Other Codes & Fixes