LG Refrigerator error code HS
Humidity sensor short or disconnected
Quick answer
On LG Refrigerator (2010s onward), HS is a fault. It means humidity sensor short or disconnected. A first thing to check: Sensor failed open or shorted.
- Applies to
- LG Refrigerator
- LG refrigerator codes · Refrigerator · 2010s onward
- Type of code
- Fault
- Urgency: Needs attention soon
- First safe check
- Look at the sensor grid where the drum outlet duct meets the drum and wipe off lint with a dry cloth.
What HS means on this model
The humidity sensor circuit has a short or a disconnection, which stops the cabinet adjusting itself to the conditions in the room. It is a wiring or sensor fault rather than something that a factory reset resolves.
Symptoms you will notice
- Code appears early in a cycle
- Cycles suddenly take a fixed long time regardless of load
- Machine dries past the point of dry and then over-dries
- Drying is unpredictable from one load to the next
Common causes
The code tells you what the control detected, not which part failed. These are the causes we see most often, roughly in order of likelihood:
- Sensor failed open or shorted
- Lint and residue coating the sensor grid
- Connector or harness fault at the sensor
- Drum outlet duct blocked, so air never reaches the sensor
- Control board misreading a working sensor
What you can safely check
These are homeowner-level checks. None of them need you to open a live electrical compartment or work on gas.
- Look at the sensor grid where the drum outlet duct meets the drum and wipe off lint with a dry cloth.
- Follow the duct from the drum outlet to make sure it is not packed, since a blocked duct starves the sensor as well as the airflow.
- Unplug the machine and check the sensor connector is seated and free of corrosion.
Do not do these
- ×Do not use any liquid to clean the sensor, which is exactly what turns a working sensor into a failed one.
When to call a technician
Book a technician, do not keep resetting it
This fault will not clear on its own. Every power cycle gives the control one more failed attempt, and repeated attempts are what turn a cheap part replacement into a seized or contaminated system.
- If the appliance has stopped mid-cycle, is making a noise you have not heard before, or smells burnt, stop reading here and call. Those are symptoms of something the fault code does not describe well enough.
Cleaning the grid and clearing the duct is a good owner job. A failed sensor is a technician repair.
What it costs to fix
Parts
Humidity sensor $40 to $110. Connector and harness $15 to $50. Drum outlet duct $20 to $70.
Labor
One to two hours.
DIY or technician
Cleaning the grid and clearing the duct is a good owner job. A failed sensor is a technician repair.
Typical US part and labor ranges, 2026. They vary by region, model and contractor, so treat them as a planning figure, not a quote.
Scope of this code
- Code table
- LG refrigerator codes
- Models in scope
- LG Refrigerator, 2015 onward
- Checked
- Confirm on your own unit
- Find the model number on the data plate, then check this code in the service manual for that model. Manufacturers revise code tables between model years, and a revised board can renumber a fault.