tOSerious
Samsung Dryer tO Error Code
Dryer detected excessive temperature; may shut down to prevent fire.
Common causes
- Clogged lint filter or vent
- Faulty thermistor
- Faulty heating element or relay
How to fix it
- Clean lint filter and check vent for blockages (disconnect and vacuum)
- Ensure room temperature is not too high
- Run a cool-down cycle; if error repeats, check thermistor and heater
⚠ When to call a pro: If vent is clear and error persists, call a technician to avoid fire risk.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.