How do I check my Samsung dryer’s temperature sensor?

Is your Samsung dryer not heating up like it used to or drying inconsistently? One possible culprit could be the temperature sensor, also known as the thermistor. If it goes bad, you’re in for longer drying times or no heat in your unit. But don’t worry — testing and replacing it isn’t as complicated as it sounds!

Let’s walk you through the steps to figure out if the temperature sensor is the reason behind your dryer’s heating issues.

If you need any replacement parts for your Samsung dryer, you can enter your model number at AppliancePartsPros.com to order them. Most orders arrive in just two business days, and we have thousands of free guides to show you how to install your new parts.

Important: The information provided in this article may not apply to your specific appliance model. While we strive to offer helpful advice for DIY appliance repairs, variations in models and configurations can lead to differences in troubleshooting steps, error codes and part replacements. For the most accurate guidance, we strongly recommend consulting the technical sheet for your specific appliance model.

How to test a Samsung dryer temperature sensor

Follow these steps to find out if your dryer has a faulty temperature sensor.

1. Unplug the dryer from the power outlet.
2. Access the blower housing to get to the temperature sensor.
3. Gently remove the wires connected to the old temperature sensor.
4. Set your multimeter to resistance mode.
5. Place the multimeter probes on the terminals of the temperature sensor.

If the multimeter displays a resistance reading within the manufacturer’s specifications, then the temperature sensor is functioning correctly. If the meter displays a reading outside the specifications, then it needs to be replaced.

What’s the difference between a thermostat, thermistor, and temperature sensor?

Here is a list of common temperature-related sensors and safety devices found in most dryers, including some Samsung models:

1. Thermistor (also called a temperature sensor)

• Measures the internal temperature of the dryer by changing its electrical resistance based on the heat level. It sends continuous data to the control board to regulate the heating element and maintain proper drying cycles.
• Usually found near the blower housing or in the air duct.

2. High-limit thermostat

• A safety device that cuts off power to the heating element (electric models) or igniter and valve assembly (gas models) if the dryer exceeds a certain temperature threshold to prevent overheating.
• Typically found near the heating element.

3. Cycling thermostat

• Regulates the dryer’s temperature by turning the heating element (electric models) or igniter (gas models) on and off to maintain a consistent drying temperature during the cycle.
• Usually found on the blower housing

4. Thermal fuse

• A one-time-use safety device that can blow if the temperature exceeds a certain threshold. It shuts off power to the heating element (electric models) or valve assembly and igniter (gas models) if the unit overheats.
• Typically located on the blower housing.

Read more: Samsung Dryer Repair Help

Will a bad thermostat stop a dryer from heating?

It can, depending on the type of dryer you have. Here’s how a faulty thermostat can affect your dryer:

• If the high-limit thermostat fails, it can prevent the heating element or heater assembly from turning on. If it malfunctions, it may also incorrectly signal that the dryer is overheating, which may cut power to the heating element or valve assembly even when the dryer is at a normal temperature.
• If the cycling thermostat fails, the dryer may not heat at all, or it may overheat because the thermostat isn’t regulating the heat properly.
• If the thermistor (temperature sensor) is faulty or giving inaccurate readings, the dryer may not heat because the control board might think the dryer is already hot. This can prevent the heating element or heater assembly from turning on.

Read more: Samsung Dryer Not Heating Help

More for you

Thanks for reading! We hope this guide helped you fix your Samsung dryer.

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