S003-001-lg Direct

: Turn off the unit and unplug it from the wall for at least 60 seconds to clear temporary logic errors.

If the error disappears, one of your speakers or its wire is faulty.

: Ensure the unit has enough space for airflow. Overheating can sometimes trigger protection modes to prevent a fire hazard. s003-001-lg

: This usually occurs due to an internal short circuit . This can be caused by: Frayed or touching speaker wires. A faulty speaker drawing too much power. Internal component failure within the amplifier circuit.

For official repair support or to find a local service center, you can use the LG Support Locator to book a technician. How to Fix S Protection on LG Sound Systems | Expert Q&A : Turn off the unit and unplug it

When an LG audio system (such as a soundbar, home theater, or receiver) displays "S-PROTECT" or "S-PROTECTION," it indicates that the unit's internal protection circuit has been triggered to prevent damage to the amplifier.

: Unplug all speaker wires from the back of the unit. Check for any stray copper strands that might be touching other terminals or the metal chassis. A faulty speaker drawing too much power

: In LG's error nomenclature, "S" often relates to "Sound" or "Speaker" subsystems, distinguishing it from power or thermal protection. Helpful Troubleshooting Steps