Samsung Dryer HE Error Code: Meaning, Causes & Fix

Heating error — the dryer is overheating or the heating system is misbehaving.

HE reports a heating-system abnormality on Samsung dryers: temperatures rising beyond the expected pattern (or a heater circuit fault detected during checks). In practice HE is most often an airflow story — the dryer cannot move air, heat accumulates, and the control shuts the cycle down to protect the machine and the load. It is also the family that includes element and safety-thermostat faults. Owners often ask why Samsung needs both HC and HE for what sounds like one fault, and the honest answer from Samsung's own pages is that it mostly does not: its global tables print the pair on a single line with a single instruction, and its Canadian page folds HC, hE and HC4 into one heating group. Which letters your dryer shows is a model-and-region rendering choice, not a different disease. The practical consequence matters more than the taxonomy: do not let a forum convince you that HE is 'the element code' while HC is 'the airflow code', or any similar split — Samsung documents no such division. Both are the high-temperature heating check, both start with breakers, filter and vent, and both end at service when those are proven. The distinction worth keeping is not between the letters but between the presentations: a dryer that overheats with loads scorching is an airflow emergency, while a dryer that reports the code with a cold drum is a supervision, supply or sensing puzzle — and they are diagnosed in different orders.

What causes the HE code on a Samsung dryer?

Blocked venting / lint filter

By far the leading cause — including lint packed inside the dryer's own duct, not just the house vent.

Heating element fault

An element can short to its housing and heat uncontrollably, or fail and confuse the temperature monitoring.

Tripped or failing safety thermostats

High-limit devices open after overheating events; a weakened one opens early and sets heating codes.

Thermistor drift

The sensor under/over-reports temperature, so normal heating looks abnormal to the control.

Airflow restriction that has moved inside the machine

Samsung Canada names the cause for the heating family directly — a clogged lint screen or vent — but the restriction that survives an obvious vent clean usually lives in the stretch owners forget: the dryer's own internal duct between the drum and the rear outlet, and the blower housing. Lint that escapes the filter over years packs into that path, so the screen can be spotless, the house vent freshly cleaned, and the dryer still unable to breathe. The signature is HE arriving sooner and sooner after each cleaning, because the remaining restriction is fixed while everything around it gets cleaner by comparison.

A crushed or over-long vent run the dryer was installed with

Some HE dryers were never given a fair vent: a transition hose crushed flat when the machine was pushed back, a run far longer or more elbowed than the manual allows, or a hood whose flap is painted shut. These dryers often 'always ran a bit hot' and begin coding only as the filter and internal duct add their own restriction on top. Samsung builds a diagnostic for exactly this situation — the Vent Blockage test described in the checks below — and a test result showing a heavily clogged duct on a machine with a clean filter is the installation confessing, not the dryer failing.

The heating circuit itself: element behaviour and its safety devices

Beyond airflow, HE covers the heater circuit's own misbehaviour. An element that shorts against its housing can heat when it should be off, driving temperatures up outside the control's pattern; the safety thermostats that guard the circuit open after genuine overheating events, and a safety weakened by repeated trips can begin opening early, converting a cooling problem into a code even at normal temperatures. Samsung's published remedy for the family includes having the heating-element wiring connections checked (by a licensed electrician), which places the heater circuit formally inside HE's territory — but note the order Samsung implies: airflow and supply are the common causes; the element circuit is where you arrive after those are proven.

Checks to run before you replace anything

1. Check airflow at the exterior vent while running: weak flow = restriction, full stop.
2. Disconnect-test (electric, brief, supervised): run with the vent off — if HE disappears, the house vent is the fault.
3. Inspect and clean the lint filter housing and the internal duct path as far as accessible.
4. Run Samsung's Vent Blockage test if your model has it — Samsung US publishes the procedure: with the dryer cool and the drum empty and the door closed, press Power and within 5 seconds press and hold Adjust Time Up + Dry Level until InS or In appears (some models use other pairs, such as Air Fluff + Wrinkle Prevent), then press and hold Start/Pause; the test runs about 2 minutes. A result of 0 or End means the duct system is normal; CLg/Cg means it cannot exhaust properly, and results like C80 or C90 report a duct roughly 80% or over 90% clogged — Samsung's instruction for those is to clean the exhaust vent.
5. Do the exterior-flow check the test complements: on a heated timed cycle, feel the airflow at the outside hood. It should be a strong, warm stream. Weak flow with a clean filter and a passing or unavailable blockage test means opening up the path section by section — machine duct, transition hose, house run, hood — because one of them is the restriction.
6. Interrogate the breakers the way Samsung's HC/HE instruction directs: a tripped or half-tripped breaker in the electrical box is a listed check for this family, and on an electric dryer a lost or sagging leg distorts heating behaviour in ways that look like overheating to the supervision. Reset what has tripped, and treat a breaker that will not hold under a heated load as an electrician's finding.
7. Note the load pattern honestly before calling anyone: HE on every cycle including small ones is a hard restriction or a circuit fault; HE only on bulky loads, towels and back-to-back cycles is marginal airflow being overwhelmed. The second pattern is not 'intermittent electronics' — it is a vent at the edge of coping, and it worsens.

How to fix the HE error code

1. Clean the entire vent path (machine duct, hose, house run, exterior hood) — this is the fix in most HE cases.
2. Test element and safety thermostats for continuity (unplugged); replace open components, and a shorted-to-case element always.
3. Replace a thermistor whose resistance doesn't track temperature smoothly.
4. Clean the whole exhaust path as one job — lint screen and its housing, the dryer's internal duct as far as your model allows, the transition hose (replace it if it is crushed or foil-thin), the house run and the exterior hood — then re-run the Vent Blockage test if fitted: Samsung's result scale gives you a before-and-after number instead of a guess.
5. If the test still reports a clogged duct after cleaning, believe it and treat the vent system itself as the repair: shorten or re-route an over-long run, replace a crushed hose properly rather than straightening it, and free or replace a stuck hood. HE cured by vent work stays cured; HE 'cured' by resetting returns within the week.
6. Have the heating circuit checked where Samsung assigns it: element wiring connections are licensed-electrician work in Samsung's own instruction for this code family, and element or safety-thermostat replacement follows from what continuity testing finds — with the standing rule that an opened safety device means the overheating that opened it must be explained by the airflow work above, or the new device opens too.
7. Keep the dryer out of heated cycles until HE is resolved. Samsung's family for this code is the overheating family; an unheated Air Fluff cycle, if your model offers one, is the only honest way to use the machine meanwhile.

The part that usually fails: Heating element + high-limit thermostat set

Elements and safeties are tested with a meter for continuity; an open high-limit means it tripped on a real overheat — fix airflow or it trips again.

Samsung dryer error code he reset

Power-cycle after repair and run a heated cycle while checking vent flow; HE clears when temperatures track normally.

Samsung dryer codes clear with a power cycle: unplug for about 5 minutes (gas models: also confirm the gas valve state hasn't changed), plug back in and run a timed dry cycle. Sensor and motor codes that return immediately are active faults — the board tests the motor circuit and thermistors at the start of every cycle.

Why does the HE code keep coming back?

HE that returns after a full vent clean points inside: element shorting to case intermittently, or a thermistor drifting at temperature. Both need meter work at temperature — technician territory for most owners. HE's return pattern is a timeline of the restriction. A code returning immediately after a vent clean means the clean did not reach the restriction — internal duct and blower housing are the usual hiding places, and Samsung's Vent Blockage test will still report a clogged duct while the house vent shines. A code returning weeks later, arriving earlier in each cycle, is a restriction rebuilding: screen film reforming, a hose re-crushing, a hood fouling again. Re-run the blockage test as your proof after any fix; a number that improved is a repair, while a number that did not is a map to where the lint still is.

How to stop HE coming back

• Blocked venting / lint filter: By far the leading cause — including lint packed inside the dryer's own duct, not just the house vent.
• Heating element fault: An element can short to its housing and heat uncontrollably, or fail and confuse the temperature monitoring.
• Tripped or failing safety thermostats: High-limit devices open after overheating events; a weakened one opens early and sets heating codes.

Retrieving stored fault codes on Samsung dryers

Samsung dryers include a test/diagnostic mode on many models (entered via a button combination such as holding specific cycle pads while powering on — the service manual for the model lists it) that shows stored codes and lets a technician run the motor, heater and sensor checks individually.

Other Samsung dryer error codes

See the full list on the Samsung Dryer error codes hub.

Codes HE gets confused with

HC — Heating error — high-temperature/compressor-related heating fault (on heat-pump models, the compressor system; on conventional models, an overheating/heating check). HC belongs to Samsung's heating-fault family.

3C — Motor error — the dryer's drive motor (or its control feedback) is faulty. 3C in Samsung's motor family on the dryer reports that the drum motor is not running as commanded: it may fail to start, stall, or lose its speed feedback.

DC — Door error — the dryer thinks the door is open or not latched. DC (dC) on a Samsung dryer means the door switch is not reporting 'closed'.

CL9 — Not a fault — 'CL' codes on Samsung dryers are Child Lock status displays; CL9 is not a standard documented fault code and is most likely a mis-read display or a child-lock state, not an error. Samsung dryers show CL (Child Lock) when the panel lock is active — the controls are disabled on purpose.

Frequently asked questions

Related guides

Facts on this page were checked against manufacturer documentation: www.samsung.com · www.samsung.com · www.samsung.com · www.samsung.com