Direct answer
A clean lint screen does not rule out a crushed transition hose, blocked long duct, stuck exterior flap or internal exhaust restriction.
What this covers
- Dryers · exhaust
- The exact symptom in the title before component-level repair
- Consumer-accessible controls, connections and maintenance areas
What it does not cover
- ×Smoke, burning odor, swelling, liquid on powered parts or damaged wiring
- ×Opening sealed panels, bypassing interlocks or live-electrical testing
- ×Account ownership, billing or warranty disputes
Observe before changing anything
ReversibleRun briefly and feel airflow at the outside hood, noting whether the flap opens fully.
Isolate the failing boundary
ReversibleInspect the accessible transition duct and arrange cleaning of the complete hidden run to the outdoors.
Apply the narrow correction
ReversibleUse a short, code-compliant rigid or semi-rigid path as the installation instructions allow.
Verify the result and stop at the boundary
ReversibleDo not vent indoors or keep heating with weak exhaust.
Evidence ledger
Sources behind this answer
Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.
Exact questions
Common follow-ups
What should I check first for “Dryer airflow is weak even with a clean lint screen”?+
Run briefly and feel airflow at the outside hood, noting whether the flap opens fully.
How do I know whether the problem is external or inside the device?+
Inspect the accessible transition duct and arrange cleaning of the complete hidden run to the outdoors.
When should I stop and request repair?+
Do not vent indoors or keep heating with weak exhaust.
Answer for the exact device and software version shown above.