LG Washer Error Code HS

The HS code appears on LG pedestal washers when the stacking switch fails to detect a compatible full-size LG washer on top of the unit. The pedestal washer is designed to operate only when paired with a qualifying LG appliance manufactured in 2009 or later. The code can indicate a missing upper unit, an incompatible appliance stacked on top, poor alignment between the two units, or a failed stacking switch.

The pedestal washer will not operate while the HS code is active, so continued use is not possible until the issue is resolved. This is a protective lockout, not a warning that allows partial operation. Address the installation or switch issue before attempting to run the unit.

If the issue is simply an incompatible or improperly seated appliance, there is no parts cost involved. If the stacking switch itself has failed and needs replacement, parts and labor costs can vary, but repair estimates for a switch replacement typically fall in the range of $75 to $200 depending on your location and service provider. Getting a diagnostic visit from a certified LG technician is recommended if you cannot resolve the issue through installation checks.

In many cases, yes. Start by confirming that a compatible full-size LG washer made in 2009 or later is properly seated on top of the pedestal. If the upper unit is already in place, reseat it carefully to ensure the stacking switch can make full contact. If the installation checks out and the error persists, the stacking switch may need to be inspected or replaced, which may require a technician depending on your comfort level with appliance repair.

A reset alone will not permanently clear the HS code if the underlying cause has not been corrected. The code will return as soon as the control board checks the stacking switch and finds no valid signal. Resolve the compatibility or installation issue first, and the code should clear on its own without a manual reset.