Whirlpool Dryer AF / Check Vent / F4E3 Error Code

If your Whirlpool dryer is displaying AF / Check Vent / F4E3, this guide explains what it means,
what you can safely check, and when professional diagnosis may be needed.

What does AF / Check Vent / F4E3 mean on a Whirlpool dryer?

Restricted airflow / clogged or restricted lint screen or exhaust vent.

Definitions can vary by model or platform, so compare the code with information for your exact model before replacing parts.

What you can try

Clean the lint screen and inspect the entire exhaust vent for lint, crushing, kinks, or too many turns.

Before booking a repair

1. Confirm the displayed error code and your appliance model number.
2. Check relevant external issues such as a blocked filter, kinked hose, open door, interrupted power, or restricted airflow.
3. If a power reset is appropriate for the appliance, turn it off safely and restart it once.
4. If the code returns, avoid repeated resets and arrange diagnosis.

Safety note

Disconnect electrical power before accessing internal components.
Do not open sealed, gas, high-voltage, or refrigerant systems unless qualified to service them.
These steps are general guidance and do not replace service information for your exact model.

Still seeing AF / Check Vent / F4E3?

If the problem persists, contact Appliance Maestro to diagnose and repair your Whirlpool dryer.

Contact Us

When should you call a technician?

If the AF / Check Vent / F4E3 code returns after the safe checks above, or the appliance is leaking, overheating,
tripping a breaker, making unusual noises, or not operating correctly, professional diagnosis is recommended.
Appliance Maestro provides appliance repair service in Ottawa and surrounding communities.

Related Whirlpool dryer error codes

Whirlpool Dryer F4E1Whirlpool Dryer F3E1Whirlpool Dryer F3E2Whirlpool Dryer F3E3Whirlpool Dryer F01–F04Whirlpool Dryer FE