What to Check First
- Is the exterior surface of the outdoor unit severely contaminated by foreign materials or dusts?
- (There may be live power remained when you cleaning the outdoor unit with the power not turned off.).
- Care should be exercised to prevent flow of water into the motor when you clean the outdoor unit with water. (Cleaning with water is allowed; however, should be performed in such a way that water normally flows out of the unit as rainwater does.).
- If the outdoor unit is installed beyond the handrail, do not attempt cleaning, since there is risk of fall. (If safety equipment is required for cleaning, it needs to be handled by an LG Electronics service technician.).
- This guide was created for all models, so the images or content may be different from your product.
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 Air Conditioner Cleaning] [Wall-Mounted] How to clean exterior surface of outdoor unit?
Is the exterior surface of the outdoor unit severely contaminated by foreign materials or dusts?
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.
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