LG Refrigerator Error Code HS E

HS E on an LG refrigerator indicates a humidity sensor error related to the freezer compartment humidity sensor. The control board has detected either a short circuit or a disconnection in the sensor circuit, placing the reading outside acceptable parameters. The error is meant to alert you that the sensor is not communicating properly with the control board.

A humidity sensor fault does not immediately create a safety hazard, but it can affect how well the freezer manages moisture and defrost cycles over time. Food safety depends on the freezer maintaining proper temperature, so it is worth monitoring temperatures closely and addressing the fault promptly rather than leaving it unresolved for an extended period.

Repair costs vary depending on the root cause. If the fix is simply reseating a connector, there may be no parts cost and only a service call fee, typically in the range of $75 to $150. Replacing the humidity sensor itself generally costs between $20 and $80 for the part, plus labor. If the main control board is at fault, total repair costs can range from $200 to $500 or more depending on the model and labor rates in your area.

Some causes of the HS E error are DIY-friendly, such as reseating a loose connector or cleaning corroded pins. However, testing sensor resistance, tracing a wiring fault, or replacing the sensor element or control board typically requires a multimeter and comfort working with refrigerator electrical components. If you are not experienced with appliance electrical diagnostics, a qualified technician is recommended.

A power reset may temporarily clear the HS E code from the display, but the error will return if the underlying sensor or wiring fault is still present. The control board will re-detect the out-of-range condition and re-trigger the fault. A reset is useful for confirming whether the error is intermittent, but it does not substitute for proper diagnosis and repair.