LG Dryer Error Code HS: Meaning and Fix

Reading the dryer display
On a dryer the code shows in the time-remaining window or as blinking status lights. Write down the characters before you press anything, because starting a new cycle usually clears the display. LG codes are short letter pairs; a capital O differs from a zero.
LG appliances show short alphabetic codes (OE, IE, UE on washers, Er plus letters on refrigerators) and, on ThinQ models, a Smart Diagnosis option. LG also builds many Kenmore Elite units. The codes apply to model numbers such as LDF7774ST, LDT5678SS and DLEX3900B; check the label on your unit to confirm yours.
What causes HS
- Dirty sensor bars
- Failed sensor
- Wiring fault
How to fix it
- Wipe the sensor bars inside the drum with a cloth and rubbing alcohol.
- Run a timed dry cycle instead.
- Reset the dryer by unplugging it for a minute.
- If HS persists, request service.
Parts you may need
| Part | Part no. | Buy |
|---|---|---|
| Moisture sensor | EBD50964602 | Find part |
Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.
Questions
Why is my dryer running so long?
HS forces a long fallback run.
Can I clean the sensor?
Yes, the metal strips.
Is HS dangerous?
No.
Other LG dryer codes
Sources
Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.
Applies to models including DLEX3900B, DLG7401WE, DLEX4200B, DLHC1455W, RV13WB.





