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Error code reference

LG Refrigerator Error Code E HS

Humidity sensor error caused by short or disconnection of the humidity sensor.

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Humidity sensor error caused by short or disconnection of the humidity sensor.

First step from the service manual

Check connection of housing, check for missing humidity sensor, sensor defect, or short/disconnection of harness.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What E HS means on a LG refrigerator

The E HS error code on an LG refrigerator indicates a humidity sensor fault. The control board has detected either a short circuit or an open circuit (disconnection) in the humidity sensor circuit. The humidity sensor monitors moisture levels, typically in the fresh food compartment or near a drawer, and provides data the control system uses to regulate features like the humidity-controlled crisper drawers. When the sensor signal falls outside the expected range due to a wiring fault or sensor failure, the board flags this error.

The most common triggers for E HS are physical disconnection of the sensor wiring harness, a damaged or corroded connector at the sensor housing, or complete absence of the sensor itself. A short circuit in the harness, caused by pinched or chafed wiring, will also produce this code. In some cases the sensor element itself fails internally, sending a signal that reads as a short or open to the control board.

Diagnosis should begin at the sensor housing connector. Inspect the harness for visible damage, corrosion, or loose seating at both the sensor end and the control board end. Confirm the sensor is physically present, as it can be missing after a previous repair. If connections are secure and the sensor is present, the sensor itself is likely defective and will need replacement. Checking for continuity and resistance through the harness will help isolate whether the fault is in the wiring or the sensor component.

Source: manufacturer service documentation.

Common causes of E HS

  1. 01

    Loose or disconnected wiring harness

    Wiring / connection

    The connector at the humidity sensor housing may have come loose or pulled free entirely. Check that the harness is firmly seated at the sensor and that no pins are backed out of the connector.

  2. 02

    Defective humidity sensor

    Part replacement

    The sensor element itself can fail, producing a reading that the control board interprets as a short or open circuit. If the wiring and connections check out, the sensor should be tested and replaced if faulty.

  3. 03

    Damaged or shorted wiring harness

    Part replacement

    Pinched, chafed, or otherwise damaged wiring along the harness run can create a short circuit. Inspect the full length of the harness for visible damage, especially at any points where the wiring passes through panels or brackets.

  4. 04

    Corroded or damaged connector housing

    Wiring / connection

    Moisture exposure can corrode the connector pins at the sensor housing, increasing resistance or breaking the circuit entirely. Inspect the connector for green or white corrosion buildup and clean or replace as needed.

  5. 05

    Missing humidity sensor

    Part replacement

    In units that have had previous service, the humidity sensor may not have been reinstalled. Confirm the sensor is physically present in its designated location in the refrigerator compartment.

See the test procedure for each cause

Frequently asked questions about E HS

What does E HS mean on a LG refrigerator?
E HS on an LG refrigerator means the control board has detected a fault in the humidity sensor circuit. The error is triggered by a short circuit, an open circuit, or a disconnected wiring harness connected to the humidity sensor. The sensor monitors moisture levels in the refrigerator compartment, and the error will persist until the underlying wiring or sensor issue is corrected.
Can I fix the E HS error myself?
Some causes of E HS are DIY-friendly. Start by locating the humidity sensor housing and checking that the wiring harness connector is firmly attached and free of corrosion. If the connection looks good and the sensor is present, a multimeter can be used to check continuity through the harness and sensor. Replacing a defective sensor is a straightforward part swap, but if the wiring harness is damaged, the repair may be more involved.
Is it safe to keep using my refrigerator while E HS is displayed?
The refrigerator will generally continue cooling while E HS is active, since the humidity sensor primarily affects moisture control functions like crisper drawer humidity levels rather than core refrigeration. However, leaving the fault unaddressed means those humidity-controlled features will not operate correctly, which could affect food preservation over time. It is best to diagnose and resolve the error promptly.
Will resetting my LG refrigerator clear the E HS code?
A reset may temporarily clear the display, but the E HS code will return if the underlying problem has not been repaired. The control board continuously monitors the humidity sensor circuit, and it will re-trigger the error as soon as it detects the same short or disconnection. A permanent fix requires addressing the sensor, wiring, or connector causing the fault.
How much does it cost to repair an E HS error on an LG refrigerator?
Repair costs depend on what is causing the fault. If the fix is simply reseating a loose connector, there may be no parts cost at all. Replacing a defective humidity sensor typically costs between $20 and $80 for the part, plus labor if a technician is involved. A damaged wiring harness can raise costs higher, generally placing the total repair in the $100 to $300 range depending on the extent of the damage and local labor rates.

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