If a Samsung dryer tumbles but clothes stay wet, first separate “no heat at all” from slow drying with some warmth. Samsung’s US support guide treats those as different paths. A blocked vent, lint, load size, and Eco Dry setting can change drying time, but a completely cold drum may need service.
Stop for overheating or a blocked vent
Do not continue drying with a burning odor, severe heat, or a persistent vent blockage warning.
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Check the simple conditions
- Record the full model, fuel type, cycle, and any displayed code.
- Check whether the selected cycle intentionally reduces heat, such as Eco Dry on applicable models.
- Clean the removable lint screen and look for a blocked exterior vent.
- If the dryer is still completely cold, follow the exact model’s official troubleshooting path or arrange service.
Why C80 and C90 need context
C90, where supported, is a Vent Blockage test result. It should not be read as a generic heating-element fault. A passing vent test does not rule out every drying issue; compare the test with the model manual.
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Official source
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