Error Code Explained
What Does the Samsung tS Error Code Mean?
The tS error code (also displayed as t5 on some Samsung models) indicates that the exhaust thermistor — the temperature sensor that monitors the air leaving the drum — is reading a resistance value outside the expected operating range. The control board cannot regulate drum temperature without accurate sensor feedback, and shuts down the heating circuit.
tS is a relatively uncommon Samsung dryer error. It most often indicates thermistor failure rather than a wiring issue, and is a straightforward component replacement.
Root Causes
Common Causes of the Samsung tS Error Code
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1Failed Exhaust ThermistorThe thermistor's resistance has drifted out of specification due to component aging or heat damage. The control board detects an out-of-range reading and triggers tS.
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2Damaged Thermistor WiringThe wire harness to the thermistor has developed an open circuit from vibration fatigue or heat damage.
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3Control Board Thermistor Input FaultRarely, the thermistor input circuit on the control board fails. Confirmed only after thermistor and wiring replacement do not resolve tS.
Step-by-Step Guide
How to Troubleshoot the tS Error Code
Safety First: Always disconnect the Dryer from power before inspecting any internal components. Do not attempt electrical repairs. If in doubt, call a certified technician.
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1Locate the exhaust thermistorThe exhaust thermistor on Samsung dryers is typically mounted on the exhaust duct near the blower housing, accessible from the back panel. It is a small two-wire sensor with a cylindrical probe.
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2Test thermistor resistanceWith the dryer unplugged and the thermistor wiring disconnected, measure the thermistor resistance with a multimeter. At room temperature (70°F), Samsung dryer thermistors typically read 10,000–14,000 ohms. A reading of infinity (open) or near zero (shorted) confirms sensor failure.
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3Replace the thermistorThe exhaust thermistor is typically held by a single screw and a two-terminal connector. Replacement takes under 20 minutes. Ensure the replacement thermistor matches the Samsung part number for your specific model.
Professional Service
When to Call a Samsung Technician
Thermistor replacement is a simple DIY repair for those comfortable accessing the back panel of the dryer. If tS persists after thermistor replacement, a technician should test the wiring harness continuity to the control board.
FAQ
Frequently Asked Questions — Samsung tS
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tS means the thermistor is giving an out-of-range reading (sensor fault). HE means the heating circuit is not heating correctly (heater or thermal fuse fault). They involve different components — the thermistor is the sensor, the heating element is the heat source.
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Yes — when the control board detects a tS thermistor fault, it may disable the heating circuit as a safety measure, resulting in a dryer that tumbles without heat — similar to the symptom of HE.
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On some Samsung models, multiple thermistor error codes are used (t1, t2, t3, tS, t5) to distinguish between different temperature sensor locations (inlet, exhaust, etc.). The tS and t5 codes specifically refer to the exhaust thermistor on most models. Confirm in your model's service manual.
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