What to Check First
Open the official LG USA article for the latest model-specific checks.
Why This Can Happen
Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.
Safety and Model-Specific Guidance
Frequently Asked Questions
What should I check first for LG Robot Vacuum - Troubleshooting the ' Clean the Bottom Cliff Sensor' Voice Message?
※ The error message may be different from the actual message you hear from the product.. There are foreign objects on the cliff detection sensor.. Use a cotton swab or soft cloth to wipe it off.. Foreign object: Hair, animal hair, dust. Use a cotton swab or soft cloth to clean the c.
When should I stop troubleshooting and contact LG?
Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.
Does this guidance apply to every LG model?
Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.