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LG Dryer Error Code HS

DIY checks firstReviewed November 2026Checked against manufacturer documentation
What this code means
HS: Humidity (moisture) sensor error

The dryer is not reading moisture correctly, so sensor cycles can run for up to about two and a half hours or end at the wrong time. Wipe the metal sensor bars below the lint filter with a damp cloth first; if the code persists, the sensor itself needs service.

Also shown as: Hs

Fix level
DIY checks first
Start with the checks on this page. Testing or replacing a part is usually a technician job.
Time to run the checks
About 20–40 minutes
For the 4 checks on this page — not a full repair.
You may need
Towel, Soft brush, Cloth
Named in the checks below.
Parts that may be involved
Humidity (moisture) sensor
Parts are model-specific; see the note below before ordering.

Common causes

  1. Moisture sensor bars coated with residue from dryer sheets or hard water
  2. Load too small, or bunched to one side, so it barely brushes the sensors
  3. Humidity sensor wiring loose or damaged
  4. Failed humidity sensor

What to check, in order

Safety first. Switch the appliance off and unplug it before checking anything inside it. If you are not comfortable with any step, stop and call a technician.
  1. Find the two metal sensor bars inside the drum just below the lint filter and wipe them clean with a damp cloth or paper towel
  2. Let the sensors dry completely, then run a normal-sized load (not a single item) on a Sensor Dry cycle
  3. Unplug the dryer for a few minutes to reset the control, plug it back in and try again
  4. If HS returns on every load after cleaning, book service to test or replace the sensor

Clear the code and test

  1. Fix what the checks above found first. Clearing the code without fixing the cause only brings it back.
  2. Plug the appliance back in and restore its water supply if it has one.
  3. Run the shortest programme and watch the point where the code appeared before.
  4. If the programme finishes with no code, the fault is cleared. If the code returns, write it down before calling a technician — it speeds up the diagnosis.

When to call a professional

Most cases are solved by the checks above. Book a technician if any of these apply:

  • The code comes back after you have run the checks and a test cycle.
  • You smell burning, see sparks or scorch marks, or the breaker trips.
  • Water is leaking and you cannot stop it at the tap.
  • The fix needs panels opened beyond what your manual describes, or a part tested with a meter, and you are not set up for that.

When you call, give the brand, the code HS, your model number (on a label inside the door or on the back) and the checks you already ran. It shortens the visit.

Parts that may be involved

Humidity (moisture) sensor

Parts are model-specific. Find your model number first — usually on a label inside the door, on the door frame or on the back — and match the part to that number before ordering.

Questions people ask about HS

What does HS mean on a LG dryer?

HS means: Humidity (moisture) sensor error. The dryer is not reading moisture correctly, so sensor cycles can run for up to about two and a half hours or end at the wrong time. Wipe the metal sensor bars below the lint filter with a damp cloth first; if the code persists, the sensor itself needs service.

Can I fix LG HS myself?

Start yourself: the checks on this page cover the causes you can reach without opening the machine up. If they point to a faulty part, testing or replacing it is usually a technician job.

How do I clear LG HS?

Fix the cause first — clearing the code on its own brings it straight back. Then restore power and water, run the shortest programme, and watch the stage where the code appeared. If the programme finishes with no code, it is cleared.

Sources checked

The meaning and checks for this code were checked against the sources above in November 2026. Codes vary by model and region; if your manual lists a different meaning for your exact model, follow the manual.

Other LG dryer codes

LG AddSteam feeder is empty: add water before running a steam cycleLG CLChild lock (control lock) is on: the control panel is locked, not a faultLG E13Drain problem on hybrid condensing dryers: the drain hose is blocked or the sump water is frozenLG FOLint filter is out: the dryer cannot detect the filter in its housingLG PFPower failure: the cycle was interrupted by a loss of powerLG PSImproper voltage in the power cord, often reversed cord wires at the terminal blockLG d75Flow Sense warning: the exhaust duct is about 75% blockedLG d80Flow Sense warning: the exhaust duct is about 80% blockedLG d90Flow Sense warning: the exhaust duct is about 90% blockedLG d95Flow Sense warning: the exhaust duct is about 95% blockedLG dEDoor error: the dryer does not detect the door as fully closedLG gASGas supply is turned off or interrupted (gas models only)LG nPNo current detected at the heater: a home wiring or power supply problem (electric models)LG tE1Thermistor (temperature sensor) errorLG tE2Thermistor (temperature sensor) error, often linked to steam cycles or cold conditionsLG tE3Thermistor (temperature sensor) errorLG tE4Steam generator thermistor failure (steam models; normally only shown in diagnostic test mode)