Frigidaire · Dryer Moderate
AF — Restricted airflow
Control detects exhaust temperature rising too fast — indicates a blocked vent, clogged lint screen, or crushed transition duct. Clear the airflow path before continuing.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Easy
- Verified against
- frigidaire.com ↗
How to fix it
- Clean the lint filter.
- Disconnect the vent at the back of the dryer and run a short test cycle — if AF clears, the vent is the problem.
- Snake a vent brush through the full duct run to the exterior.
- Check the exterior vent hood flap for easy movement and remove any lint nest.
- If vent is clear and AF persists, remove rear panel and inspect the blower wheel for cracks or slippage on the motor shaft.
- Replace blower wheel if it spins independently of the motor shaft.
Why it happens
Typical signs: AF flashes on display · Long dry times · Cabinet hot to the touch · Cycle pauses or stops
- Clogged lint screen First thing to check every load.
- Blocked vent duct or exterior hood Lint buildup, bird nest, crushed flex hose.
- Vent run too long or too many bends Exceeds manufacturer spec.
- Failed blower wheel Cracked hub slipping on motor shaft.
Parts you may need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
More Frigidaire dryer codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: frigidaire.com.