What's Happening

The thermistor (temperature sensor) is shorted, giving incorrect readings. The most common underlying cause is a clogged lint screen or blocked vent trapping heat inside the dryer, which can damage the sensor over time.

How to Fix It

Clean the lint filter inside the door and have the entire vent line cleaned from the dryer to the exterior. If the error persists after cleaning, test the thermistor with a multimeter — it should read about 10,000 ohms at room temperature. Replace if readings are abnormal.

Frequently Asked Questions
What does tS mean on a Samsung dryer?
tS indicates the temperature sensor (thermistor) is shorted. It's often caused by restricted airflow from a clogged lint filter or blocked vent.
How do I fix the tS error on my Samsung dryer?
Clean the lint filter and entire vent system first. If the error remains, the thermistor needs testing with a multimeter and likely replacement.
Can a clogged vent cause a Samsung dryer tS error?
Yes. A blocked vent traps heat inside the dryer, which can damage the thermistor over time and cause it to short. Always clean vents first.