Samsung Dryer Not Heating? Here's How to Fix It
Samsung dryer not heating? Diagnose and fix your Samsung dryer step by step. Covers thermal fuse, heating element, moisture sensor & more.
Updated April 6, 2026 · 6 min read
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 — it's 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.
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: 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 3: 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 4: 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–$20 to replace).
Fix 5: 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.
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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 simultaneously for three seconds while the dryer is idle with the door closed. The display will show t01 or a similar code indicating the first test. Once in diagnostic mode, the display will show 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. Writing down diagnostic codes before clearing them is important because Samsung dryers erase stored codes when the diagnostic session ends.
Thermistor Resistance Reference Chart
Samsung uses a thermistor to monitor dryer temperature instead of the traditional bimetal thermostats found in older machines. The thermistor sends a variable resistance signal to the control board that changes with temperature. At room temperature, approximately 68°F, the thermistor should read around 10,000 ohms. At 100°F, it should read approximately 6,500 ohms. At 140°F, the reading drops to around 3,200 ohms. At 200°F, the reading should be approximately 1,200 ohms. If you test the thermistor with a multimeter and get a reading dramatically outside these ranges at a known temperature, 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 actual 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. A failed element reads open on a multimeter 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 because gas dryers are used less frequently for extended heat periods, which can allow igniter elements to oxidize over time.
Samsung Dryer Error Codes Related to Heating
Beyond tE1 and tE2, several other Samsung dryer error codes connect to heating performance. tE3 indicates a heating sensor failure on the exhaust duct rather than the drum thermistor. HE or HC on Samsung dryers signals overheating — the dryer ran above its safe temperature limit, which almost always traces back to a blocked vent. 5AC6 on certain Samsung models indicates a motor thermistor fault. If you see a blinking display without a specific code, power-cycle the dryer by unplugging it for 60 seconds before assuming a component failure — some Samsung control boards lock into an error state after a one-time power fluctuation and reset cleanly with a power cycle.