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The back of a home laundry pair pulled out from the wall, a short length of rigid metal exhaust duct from the dryer to the wall outlet with a little gray lint at the joint, the dryer unplugged and nobody in the frame.

Whirlpool AF / Check Vent: the machine has found restricted airflow

AF, shown as "Check Vent" on some dryer models, is Whirlpool's restricted-airflow alert.

(844) 879-5178

Mon–Sat, 8am–8pm

  • Vents and airflow
  • Lint path and exhaust vent cleaning
  • Source: Whirlpool

Book a visit

Three short steps, about a minute.

or call (844) 879-5178

What AF
actually means.

AF, shown as "Check Vent" on some dryer models, is Whirlpool's restricted-airflow alert. The dryer keeps tumbling while the message shows, which is exactly why it is worth acting on before a real blockage builds up behind it.

Whirlpool home appliance display · also shown as Check Vent, AF / Check Vent

What to do when AF shows on the home appliance

Kind of codeVents and airflow

Air is not moving the way the appliance expects. On a dryer that usually means lint in the screen housing, a crushed transition duct or an exhaust run packed along its length, and some makers measure it and show a code for a restricted vent before drying slows badly. On cold storage it can mean a condenser coil buried in dust or a grille blocked by a rug. Clean the screen, check the duct behind the machine with it unplugged, and book the full run cleaned; a hot or scorched smell means stop now.

Usually leads toLint path and exhaust vent cleaning

Lint cleared from the screen housing, the duct behind the laundry and the whole run to the outside hood.

Shows up asAppliance Maintenance Code or Reminder Light: Filter, Descale, Vent Check

An appliance maintenance code is a reminder, icon or short code on a display asking for a filter change, descaling, a tub clean, rinse aid or an exhaust check rather than reporting a broken part.

MakeWhirlpool

Whirlpool appliances fill kitchens and laundry rooms across the country, and most of their upkeep is simple: filters rinsed or changed, coils brushed, lint paths cleared.

SourceWhirlpool dryer support: AF or "Check Vent" error code

Confirmed on Whirlpool's standard dryer line; the compact heat pump dryer instead posts a separate "Door Filter (Lint Screen)" alert for the same kind of blockage, described on its own support page.

Before you book,
in this order.

Each step comes from Whirlpool's own guidance for AF on its home appliances. Follow it to the end: the last card says whether this is a visit.

01

Clean the lint screen fully, then run your hand over it to check nothing is still caught in the mesh.

02

Check whether the vent run from the dryer to the wall is crushed, kinked, or has too many turns.

03

Confirm the exterior vent hood outside the house is free of lint, debris, birds' nests or lint buildup.

04

Run a Timed Dry heated cycle; if AF or Check Vent comes back, book a visit so the full vent run can be checked and cleared.

Still there?

It usually turns into lint path and exhaust vent cleaning. Book with the code and the model number.

What not to do

AF is about airflow through the lint screen and vent, not a heating-element or motor failure. If the dryer runs a full cycle but clothes still come out damp with the vent clear, that points to a different problem worth a visit.

What you may
notice with it.

The home appliance problems AF tends to arrive with. Answer these at the home appliance before anyone is booked.

All problems

Before you call

Appliance Maintenance Code or Reminder Light: Filter, Descale, Vent Check

All 8 causes, cheapest first

It also comes with

Close view of the dark control panel of a built-in steam oven set into light kitchen cabinetry, one abstract droplet-shaped reminder icon glowing amber among unlit symbols, the stainless door blurred below, soft daylight. Problem

Appliance Maintenance Code or Reminder Light: Filter, Descale, Vent Check

8 causes, cheapest first

Where AF usually leads

Lint path and exhaust vent cleaning.

Lint path cleaned from the screen housing through the transition duct and wall run to the outside hood · low to moderate.
Book a visit What the job involves

Whirlpool
home appliances.

Whirlpool appliances fill kitchens and laundry rooms across the country, and most of their upkeep is simple: filters rinsed or changed, coils brushed, lint paths cleared.

Whirlpool home appliance maintenance

More Whirlpool codes

Door FilterClean FilterReplace FilterClean Washer

Vents and airflow on other makes

Electrolux EF1Fisher & Paykel cLn condGE Profile 353LG d90Maytag AFMiele F60Monogram Air-cooled condenser cleaning
All 9 codes of this kind
A tidy home kitchen with a tall built-in stainless column refrigerator and freezer pair set into light wood cabinetry, the toe grille at floor level removed and leaning against the cabinet, a technician seen only from the shoulders down kneeling on a gray mat and drawing a long soft coil brush out from under the unit, a small canister vacuum beside him, even daylight from a side window. Whirlpool builds this

Cold storage

Upkeep for everything in the house that keeps things cold: refrigerators, freezers, wine and beverage units and ice makers, cleaned and checked before they start struggling.

 A home kitchen with a stainless pro-style gas range and a matching hood above it against a light tile backsplash, the grates lifted off and laid on a folded towel on the counter, a technician seen only from the shoulders down wiping a brass burner cap with a soft cloth, a clean baffle filter leaning beside the towel, all burners off, soft daylight. Whirlpool builds this

Cooking appliances

Upkeep for ovens, ranges, cooktops, hoods, microwaves, steam and speed ovens: burners and igniters cleaned, gas joints checked, grease filters and descaling done on time.

 An open built-in dishwasher in a bright home kitchen with white cabinets, both racks pulled out and empty, the cylindrical filter lifted out and held over a stainless sink by a technician seen only from the shoulders down, a lower spray arm resting on a folded towel on the counter, soft daylight. Whirlpool builds this

Dish care

Upkeep for dishwashers and disposers: filters rinsed, spray arms cleared, the door seal and drain loop checked, and hard-water scale kept off the parts that heat and spray.

In Whirlpool's own words

the lint screen or vent is clogged; the vent is crushed, kinked or has too many turns
Whirlpool dryer support: AF or "Check Vent" error code Whirlpool dryer support: AF or "Check Vent" error code Whirlpool dryer support: AF or "Check Vent" error code

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Confirmed on Whirlpool's standard dryer line; the compact heat pump dryer instead posts a separate "Door Filter (Lint Screen)" alert for the same kind of blockage, described on its own support page.

Whirlpool AF home appliance maintenance,
where we come out.

The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.

All service areas

Tampa BayFL · 31 areas

OrlandoFL · 30 areas

Miami / South FloridaFL · 47 areas

New York MetroNY · 75 areas

HoustonTX · 36 areas

ChicagoIL · 50 areas

Los AngelesCA · 95 areas

San DiegoCA · 31 areas

San Francisco Bay AreaCA · 74 areas

A family sharing breakfast in a bright, well-kept home kitchen.
For the heart of your home.

Questions
about AF.

Can I clear AF myself?
Clean the lint screen fully, then run your hand over it to check nothing is still caught in the mesh. If it comes back, it needs a visit.
Can I keep using my Whirlpool machine while AF or Check Vent is showing?
The dryer will keep running with the message on screen, but Whirlpool's own guidance is to clear the lint screen and check the full vent run before the restriction gets bad enough to affect drying performance or safety.
I cleaned the lint screen and AF still shows on my Whirlpool machine — what next?
Move to the vent run itself: check for crushed or kinked sections between the dryer and the wall, and make sure the exterior hood outside is not blocked by lint or debris. Whirlpool lists both as common causes beyond the lint screen.
Does AF mean my Whirlpool machine vent was installed wrong?
Not necessarily, but Whirlpool does note that a vent run with too many turns or that exceeds the recommended length for its elbow count can trigger the same alert, which is worth checking against the installation instructions if the message keeps returning.

Back to your everyday

Still showing AF?

A booking goes further when it has the reminder or code as shown, the model number from the rating plate, and a word on when that filter, screen or tub was last cleaned. With those three, the office can pack the right filter or cleaner for your appliance.

Schedule maintenance Call (844) 879-5178
(844) 879-5178 Schedule maintenance