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Speed Queen·Dryermedium severity
Speed Queen Dryer Error Code AF
Restricted airflow
Common Causes
- 1Lint screen clogged
- 2Exhaust vent blocked
- 3Vent hose crushed
- 4External vent stuck closed
Step-by-Step Troubleshooting
- 1
Clean lint screen thoroughly
- 2
Disconnect exhaust vent hose and check for buildup
- 3
Run dryer briefly with vent disconnected — if heats well, blockage is in vent
- 4
Check exterior vent hood for obstructions
Pro Diagnostic Tip
Speed Queen dryers measure exhaust temperature to detect airflow loss and flag AF before the high-limit thermostat trips. A dryer that heats fine with the vent disconnected but throws AF when it is reconnected has a blocked or crushed vent run, not a control fault.
You Might Also Notice
- •Clothes take two or more cycles to dry
- •The cabinet and door feel unusually hot
- •Long drying times with a musty smell in the load
- •Lint building up around the door seal
Parts, Cost & Difficulty
Repair Difficulty
Easy — DIY FriendlyEstimated Repair Cost
$0–$125
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
Vent cleaning brush kit
Do You Have the Right Tools?
Gas leak detector ($130), thermal fuse tester ($95), belt tension gauge, and vent inspection camera ($180). Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
Book a Free Diagnostic VisitOr call for a free consultation (415) 795-7300Available 24/7 — call or text
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What This Repair Involves
Here's what a professional technician does to resolve this issue:
Clean lint system and exhaust vent
This repair requires gas leak detectors, thermal fuse testers, and high-voltage multimeters. Most homeowners find it safer and more cost-effective to have a licensed technician handle it.
Safety First — Know the Risks
Gas dryers carry carbon monoxide and explosion risk. Even electric dryers involve 240V circuits that can deliver a fatal shock. Our techs are licensed and insured — let them handle the risk.
Let a Licensed Pro Handle ItOr call for a free consultation (415) 795-7300Available 24/7 — call or text
Licensed & Insured · 90-Day Warranty · Same-Day Service
Ready to Get This Fixed?
Don't let error code AF disrupt your day. A professional diagnosis takes about 30 minutes — and it's free when you proceed with the repair.
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Frequently Asked Questions
What does Speed Queen error code AF mean?
Speed Queen error code AF indicates: Restricted airflow. This is a medium-severity issue affecting your dryer.
How do I fix Speed Queen error code AF?
Clean lint screen thoroughly Then, Disconnect exhaust vent hose and check for buildup Then, Run dryer briefly with vent disconnected — if heats well, blockage is in vent There are 1 more steps — see the full troubleshooting guide above. If these steps don't resolve the error, contact a professional.
How do I know if my dryer has error AF?
Besides the error code on the display, common signs include: Clothes take two or more cycles to dry; The cabinet and door feel unusually hot; Long drying times with a musty smell in the load. If you notice any of these symptoms, check your dryer's display panel for error code AF.
How much does it cost to fix Speed Queen AF?
Repair costs for Speed Queen AF typically range from $0 to $125 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.
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