Maytag Dryer AF Error
What it means
AF (also shown as "Check Vent") means the dryer has detected restricted air flow. The lint screen or the vent system is clogged, or the vent is crushed, kinked, or has too many turns, so heated air cannot move freely out of the dryer. The dryer may keep running, but drying takes longer and the appliance runs hotter than it should. Because restricted airflow is a leading cause of dryer fires, the cause should be cleared before continuing to use the dryer.
Common causes of the AF error
- A clogged lint screen that hasn't been cleaned between loads
- Lint buildup inside the vent duct or at the exterior exhaust hood
- A crushed or kinked vent hose behind the dryer
- A vent run that is too long or has too many elbows/turns for proper airflow
- A blocked or stuck exterior vent flap (e.g., from debris or a bird's nest)
How to fix the Maytag Dryer AF error
- 1Clean the lint screen firstRemove and clean the lint screen before each load — this is the most common cause of AF. If the screen has a waxy film from dryer sheets, wash it with warm soapy water and let it dry fully before reinstalling.
- 2Check the vent hose behind the dryerUnplug the dryer (or switch off its breaker) before moving it. Pull the dryer out far enough to see the vent run from the dryer to the wall, and confirm it isn't crushed or kinked. Straighten or replace a damaged hose and clear any lint you find.
- 3Clear the duct and exterior hoodConfirm the full vent run from dryer to wall is free of lint and debris, and that the exterior exhaust hood opens freely and is clear. A vacuum or vent-cleaning brush helps reach packed lint inside the duct.
- 4Run a timed dry testAfter cleaning, plug the dryer back in, select a Timed Dry heated cycle, and restart. If AF persists, have your entire home venting run professionally cleaned — long ducts often hold lint that a quick check misses.
🧰 When to call a professional
If AF continues after you have cleaned the lint screen and the entire vent run, call a professional. A persistent code can indicate a faulty thermistor/airflow sensor or other internal fault, and a clogged vent that won't clear is a fire hazard that may need a vent-cleaning specialist. Keep the dryer unplugged while it's pulled out for inspection.
Maytag AF error — FAQ
Is it safe to keep drying with an AF code showing?
It's best not to. Restricted airflow makes the dryer run hot and is a leading cause of dryer fires. Stop and clear the lint screen and vent before running more loads.
I cleaned the lint screen but AF keeps coming back. Why?
The blockage is likely farther down the vent run or at the exterior hood. Unplug the dryer, inspect the full duct for crushed sections and packed lint, and clean it end to end. If it still returns, the venting may need professional cleaning or a sensor may be faulty.
Does AF mean my dryer is broken?
Usually not. AF most often points to a cleaning/venting problem rather than a broken part. Only if the code persists after the vent is fully clear should you suspect an internal sensor and call for service.
Sources
This guide is independently written and not affiliated with Maytag. Always unplug appliances before servicing and follow your model's manual. Error codes and steps can vary by model — when in doubt, consult a qualified technician.