Samsung Dryer Not Heating? Here’s How to Fix It

Updated August 12, 2026 · 7 min read

Key takeaway: a Samsung dryer that runs but will not heat usually has a blown thermal fuse, and the fuse almost always blows because the vent is clogged. Check the vent first, then test the thermal fuse, heating element, and thermistor with a multimeter. Fix the vent before replacing the fuse, or the new fuse blows again. For same-day Samsung dryer repair in South Florida, call (888) 822-7754.

Why Your Samsung Dryer Won't Heat

Samsung dryers are reliable but share the same common failure points as all dryers: thermal fuses, heating elements, and thermistors. The thermal fuse is the most common cause — a one-time safety device that blows when the dryer overheats, usually from a clogged vent. For general dryer heating issues, see our complete dryer not heating guide.

Check These in Order

Work down this list in order. The cheap, common causes sit at the top, and each check tells you whether to move to the next one.

Step	Check	DIY or technician
1	Vent — disconnect the hose and run the dryer; if heat returns, the vent is blocked	DIY
2	Breaker — both switches of the 240V double breaker fully ON; flip off, then on	DIY
3	Thermal fuse on the blower housing — continuity test, $5–$15 part	DIY test; fix the vent first
4	Heating element — continuity test, $25–$50 part	DIY test; technician if unsure
5	Thermistor — about 10,000 ohms at room temperature, $8–$22 part	DIY test; technician if unsure
6	Moisture sensor bars — wipe clean with rubbing alcohol	DIY

Fix 1: Clean the Vent

Start here every time. A clogged vent causes overheating, which blows the thermal fuse. Disconnect the vent hose and run the dryer — if it heats without the vent, the vent is blocked. See our dryer vent cleaning guide for instructions.

Fix 2: Check the Breaker (Electric Models)

Samsung electric dryers run on a 240V circuit with a double-pole breaker. If one leg of that breaker trips, the drum still turns on 120V but the heating element gets no power. Find the dryer breaker in your panel, flip it fully off, then fully back on so both switches sit aligned.

Fix 3: Replace the Thermal Fuse

Samsung dryers have a thermal fuse on the blower housing. Access it by removing the back panel (4–6 screws). Test with a multimeter — no continuity means it's blown. Replace it ($5–$15), but always fix the vent issue first or it will blow again.

Fix 4: Test the Heating Element

Samsung electric dryers use a coiled heating element. If it breaks, you get no heat. Access it from the back panel, disconnect the wires, and test for continuity. A broken element reads open (no continuity). Replacement elements cost $25–$50.

Fix 5: Check the Thermistor

Samsung dryers use a thermistor (temperature sensor) instead of a traditional thermostat. If it reads incorrectly, the control board won't activate the heater. Test with a multimeter — at room temperature, it should read around 10,000 ohms. Significantly different readings mean it's faulty ($8–$22 to replace).

Fix 6: Clean the Moisture Sensor Bars

Samsung dryers with moisture sensors have two metal bars inside the drum, usually on the front lint filter housing. If these are coated with dryer sheet residue, the dryer thinks clothes are dry and shuts off heat prematurely. Clean them with rubbing alcohol and a cloth. If your dryer runs but doesn't dry clothes, this is often the cause.

Samsung Dryer Diagnostic Mode: How to Access It

Samsung dryers with electronic controls have a service diagnostic mode that displays stored error codes and allows individual component tests. To enter it on most models, press and hold the Temp and Signal buttons together for three seconds while the dryer is idle with the door closed. The display shows t01 or a similar code to indicate the first test.

Once in diagnostic mode, the display shows any stored heating-related fault codes, such as tE1 for a thermistor error, tE2 for a heating sensor fault, or HE for a general heating failure. Write the codes down before clearing them — Samsung dryers erase stored codes when the diagnostic session ends.

Samsung Dryer Error Codes Related to Heating

The display narrows the diagnosis before you pick up a screwdriver. Each heating-related code points at one component.

Code	What it means	What to do
tE1	Drum thermistor error	Test the thermistor against the resistance chart below
tE2	Heating sensor fault	Have the heating sensor tested and replaced
tE3	Heating sensor failure on the exhaust duct	Have the duct sensor tested — not the drum thermistor
HE / HC	Overheating — the dryer ran above its safe limit	Clean the vent; this almost always traces to a blockage
5AC6	Motor thermistor fault (certain models)	Technician diagnosis
Blinking display, no code	Control board locked after a power fluctuation	Unplug for 60 seconds, then retest before assuming a failure

Thermistor Resistance Reference Chart

Samsung uses a thermistor to monitor dryer temperature instead of the bimetal thermostats found in older machines. The thermistor sends a variable resistance signal to the control board that changes with temperature. Test it with a multimeter at a known temperature and compare against this chart.

Temperature	Expected resistance
68°F (room temperature)	~10,000 ohms
100°F	~6,500 ohms
140°F	~3,200 ohms
200°F	~1,200 ohms

A reading dramatically outside these ranges at a known temperature means the component is faulty. A replacement Samsung thermistor costs $8 to $22 depending on the model.

Samsung Electric vs Gas Dryer Heating Diagnosis Differences

Samsung electric dryers and Samsung gas dryers share the same thermistor, control board, and moisture-sensor design, but their heating systems are completely different. On the electric side, the heating element — a coiled resistance wire inside a metal housing — is the primary heat source, and a failed element reads open on a continuity test.

On the gas side, the igniter, two or three radiant gas valve coils, and a flame sensor work together to produce heat. In South Florida, gas dryer igniter failures are more common than in colder climates. Gas dryers here run shorter heat periods, which lets igniter elements oxidize over time.

When to Call a Pro

Stop at the multimeter checks if you are not comfortable opening the cabinet. A thermal fuse that blows again after replacement, a gas smell, or a repeated error code all point to work a technician should finish. Express Xpert repairs Samsung dryers across Miami-Dade and Broward 24/7 with flat-rate pricing and a 90-day parts-and-labor warranty — call (888) 822-7754.

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Sources

• National Fire Protection Association: dryer fire safety — why a clogged vent is a fire risk, not just a heating problem.
• ENERGY STAR: clothes dryers — federal program data on dryer energy use, useful when weighing a repair against replacement.

Related Repair Guides

• Dryer Not Heating (All Brands)
• How to Clean Your Dryer Vent
• Dryer Not Drying Clothes