What Does Error Code tS Mean?

Error tS on your Samsung Dryer means: The tS code means the dryer’s temperature sensor (thermistor) is reporting a value that’s out of the normal range. When the sensor can’t be trusted, the dryer disables heating to protect the drum and electronics, so clothes stay wet or take a very long time to dry.

What You'll Need

🔧 Tools

Phillips #2 screwdriver
T15 Torx screwdriver
Digital multimeter (with continuity and resistance functions)
Needle‑nose pliers
Heat gun or hair dryer (low‑heat setting)

🛒 Parts

Temperature sensor (thermistor) for Samsung dryer

How to Fix Error tS — Step by Step

1

Quick Power Reset

Unplug the dryer or turn off the circuit breaker for at least 60 seconds. Plug it back in and turn the unit on. If the tS code disappears, the issue was a temporary glitch; otherwise continue.
2

Access the Thermistor Housing

Remove the rear panel: unscrew the four Phillips #2 screws and the two T15 Torx screws that hold the back cover. Slide the panel down and set it aside. The thermistor is a small ceramic disc mounted on the dryer’s heating element housing, usually near the exhaust vent.
3

Inspect Wiring and Connectors

Locate the two‑wire connector leading to the thermistor. Pull the connector apart and examine the wires for fraying, corrosion, or burnt spots. Use the multimeter on continuity mode; the connector should read near 0 Ω when the pins touch. Any open circuit means the harness is damaged and must be replaced.
4

Test Thermistor Resistance

Set the multimeter to the 20 kΩ range. With the dryer still unplugged, disconnect the thermistor from its connector. Measure resistance at room temperature (about 20 °C). A healthy Samsung dryer thermistor typically reads between 8 kΩ and 12 kΩ. Gently warm the sensor with a hair dryer (do not exceed 120 °C) and watch the resistance drop; it should fall to roughly 1 kΩ‑2 kΩ. If the reading is infinite, erratic, or stays above 15 kΩ when warm, the sensor is faulty.
5

Replace the Faulty Thermistor

Remove the mounting screw (usually a #6 machine screw) holding the thermistor in place. Pull the old sensor out and insert the new one, aligning the screw holes. Re‑attach the wiring connector, making sure it clicks securely. Re‑install the rear panel, tighten all Phillips and Torx screws, and restore power.
6

Verify the Fix

Run a short drying cycle on the “Air Fluff” or “Sensor Dry” setting. The dryer should progress past the initial heating stage without displaying tS. Use the multimeter again on the live circuit (set to AC voltage) to confirm the heating element receives power when the cycle calls for heat.

When to Call a Professional

Call a professional if the tS code persists after you’ve replaced the thermistor and verified the wiring, or if you discover burnt traces on the control board. Also, if you are uncomfortable working with high‑voltage components inside the dryer, a qualified technician should handle the repair.

Field note: tS is a temperature circuit complaint (NTC / heater / wiring), not a software glitch. On Samsung Dryers measure the sensor out of circuit at room temperature and watch it change when warmed in your hand. Open or dead-short sensors get blamed on ‘the board’ constantly. Prove the NTC before you buy a control.

What this code is not

Not a vent-clog code on a washer or dishwasher (dryers are different).
Not a firmware update you download from a forum.
An NTC that reads OL or 0 Ω is the part — leave the board alone.

If your Samsung dryer is displaying the tS error code, you’re likely frustrated with clothes that stay damp or take an eternity to dry. This code indicates a problem with the temperature sensor, also known as the thermistor. Don’t worry; we’ll walk you through understanding the issue, troubleshooting steps, and potential fixes.

Diagnose This in 5 Minutes (Before Calling Anyone)

Before diving into complex repairs, perform these quick checks:

Power cycle: Unplug the dryer or turn off the circuit breaker for at least 5 minutes. This simple reset might clear the error code.
Check the lint filter: Ensure it’s clean and not clogged. A dirty lint filter can cause issues with airflow and temperature regulation.
Verify proper installation: Make sure the dryer is installed on a level surface and vented correctly.

Probable Causes, Most Likely First

Here are the common causes of the tS error code, ranked by likelihood:

1. Faulty Thermistor

Description: The thermistor itself might be damaged or worn out.
Verification: Use a multimeter to test the thermistor’s resistance (see step 4 in the existing repair steps). Compare the reading to the expected value for your specific dryer model.
Fix difficulty: Medium
Cost: $10-$30 (thermistor replacement part)

2. Loose or Corroded Wiring/Connectors

Description: Corrosion or looseness in the wiring or connectors can disrupt communication between the thermistor and the control board.
Verification: Inspect the wiring and connectors leading to the thermistor (see step 3 in the existing repair steps). Look for signs of corrosion, damage, or wear.
Fix difficulty: Easy to Medium
Cost: $0 (if cleaning/corrosion removal fixes it) to $20 (for replacement parts)

3. Clogged or Blocked Airflow

Description: Restricted airflow can cause temperature imbalances, leading to thermistor errors.
Verification: Check the venting system for blockages, kinks, or excessive lint buildup. Ensure proper vent installation and maintenance.
Fix difficulty: Easy
Cost: $0 (if cleaning fixes it) to $100 (for vent replacement parts)

4. Control Board Issues

Description: In rare cases, the control board might be faulty, causing incorrect thermistor readings.
Verification: This requires advanced diagnostic tools and expertise. If you suspect a control board issue, it’s best to consult a professional.
Fix difficulty: High
Cost: $100-$300 (control board replacement part)

Your Model’s Unique Considerations

While the tS error code is common across many Samsung dryer models, some variations exist:

Models from 2015 and later: These models might have a more complex thermistor circuit, requiring additional checks.
Models with Smart Inverter technology: These dryers might require specialized diagnostic tools for troubleshooting.

Price Range for This Repair

Here’s a detailed breakdown of the costs involved:

Repair Option	DIY Cost	Parts Cost	Professional Labor
Thermistor replacement	$10-$30	$10-$30	$100-$200
Wiring/connector repair	$0-$20	$0-$20	$50-$150
Control board replacement	$100-$300	$100-$300	$200-$500

Avoiding Future Occurrences

To prevent the tS error code from recurring:

Regularly clean the lint filter: Ensure it’s clean and not clogged.
Check and clean the venting system: Regularly inspect and clean the venting system to prevent blockages.
Avoid overloading: Don’t overload the dryer, as this can cause excessive heat buildup.

Time to Call the Pros?

If you:

Are unsure about performing repairs
Have tried troubleshooting steps without success
Notice signs of electrical or mechanical damage

Call a professional appliance repair technician. They’ll diagnose the issue, provide a detailed estimate, and perform the necessary repairs.

Related Samsung Dryer Error Codes

Related Troubleshooting Guides

These guides cover similar issues you might find helpful:

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