Fix it
Why won't my dryer dry clothes?
A dryer that tumbles warm but leaves clothes damp is almost always an airflow machine failing at airflow: heat with nowhere to go and moisture with no way out. The duct run matters more than the heating element, and it is also the fire-safety item.
What it usually is
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A lint-choked exhaust duct
Beyond the lint screen, the duct to the outside packs with lint over the years. Long cycles, hot laundry-room air, and a barely-fluttering outside flap are the signature — and lint against a heat source is the leading dryer fire cause.
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The lint screen sealed by softener film
Dryer sheets glaze the screen with an invisible film; water pools on it instead of passing. The test: run water on the screen — beading means film.
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A failed heating element or thermal fuse
No heat at all (tumbles cold) points at the element, its coils, or the thermal fuse that a previous overheat — usually duct-caused — blew to protect the machine.
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Crushed transition hose behind the machine
The flexible connector crushes when the dryer gets pushed back against the wall, throttling airflow overnight. Foil accordion hose is a downgrade in disguise; smooth rigid duct breathes.
What you can check yourself
Wash the lint screen with soap and a brush. Pull the dryer out, detach the transition hose, vacuum it and the wall duct as far as reachable, and check the outside vent flap opens during a run. Replace crushed foil hose with semi-rigid. A cold-tumbling dryer after these steps has an electrical fault, not an airflow one.
When it’s a job for a pro
Full-length duct cleaning has purpose-built equipment for the runs a vacuum cannot reach — worth it on any run over a few feet or with bends. Elements and fuses are routine repairs; a blown thermal fuse should always trigger the duct question, because something made it overheat.
Professional duct cleaning typically runs $100 to $200; heating element replacement $150 to $350. Duct neglect is the expensive version: longer cycles, earlier machine death, and real fire risk.
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