LG Refrigerator Error Code Er HS

Er HS indicates a humidity sensor error, specifically a short circuit or disconnection in the humidity sensor circuit. It is a sub error code that does not display during normal operation and can only be seen by pressing the Ultra ICE and Freezer buttons at the same time to enter diagnostic mode. The control board uses this sensor to monitor moisture levels, and the error means it is receiving an abnormal or absent signal from the sensor.

This error does not indicate a safety hazard. It relates to humidity monitoring rather than cooling or electrical safety. However, leaving the fault unresolved means the refrigerator may not regulate moisture levels properly in the fresh food compartment, which could affect food quality over time.

Repair costs depend on what component has failed. If the fix is simply reseating a connector, there may be no parts cost at all. A replacement humidity sensor typically costs anywhere from $15 to $60 for the part. If a control board is involved, parts alone can range from $100 to $300 or more, with additional labor costs if you hire a technician.

Start by locating the humidity sensor and checking that its connector is fully seated and free of corrosion. If the connection looks good, test the sensor itself for a short or open circuit. If the sensor has failed, it will need to be replaced. If both the sensor and wiring test correctly, the main control board may need to be evaluated.

A reset may temporarily clear the error from the diagnostic log, but the code will return if the underlying issue with the humidity sensor or its wiring has not been repaired. Addressing the root cause, whether a loose connector, damaged wire, or failed sensor, is the only way to permanently resolve the fault.