How to Fix Maytag Dryer Error AF

Error Code: Dryer Difficulty: Easy

Problem: Airflow restriction detected by control system—equivalent to F4E3

How to Fix Dryer Error

1. Power off dryer and remove lint screen—clean thoroughly under warm running water to dissolve fabric softener residue, scrub gently with soft brush, rinse completely, and dry before reinstalling.
2. Disconnect flexible vent hose from dryer exhaust outlet—inspect entire length for kinks, crushing, or lint blockages. Use dryer vent cleaning brush kit to remove lint buildup.
3. Inspect exterior vent termination—remove cover and clean flapper mechanism, verify no bird nests or debris inside vent pipe.
4. Measure total vent run length—should not exceed 40 feet equivalent (subtract 5 feet for each 90° elbow,
5. 5 feet for each 45° elbow).
6. Remove rear panel and inspect blower wheel housing—vacuum all lint buildup around wheel and housing interior.
7. Inspect blower wheel for cracks, missing fins, or wobble on shaft—replace if damaged (WPW
8. .
9. Check drum front and rear seals for tears allowing air bypass—replace if damaged.
10. Reconnect vent system with minimal bends and proper support clamps.
11. Run test cycle on timed dry (bypassing moisture sensor) and verify strong, hot airflow at exterior vent.
12. Error clears automatically after successful cycle with adequate airflow—no button press required.