What to Check First
- A non-removable/window type air conditioner should be installed in such a way its rear is tilted downward by 10mm (0.39in) to 15mm (0.59in) so that indoor condensed water can smoothly flow to the rear.
- 1. After placing the product in the installation location, then make sure it protrudes toward the indoor side by 110mm (4.33in) to 180mm (4.64in).
- 2. Firmly fix the product to make sure it does not fall toward the outdoor unit side. To make sure that condensed water is smoothly drained to the rear, install it in such a way that the rear of the air conditioner is tilted downward by 10mm(0.39in) to 15mm(0.59in).
- 3. After fixing the product, block the gap near the wall or the product with insulation material provided in the package.
- 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 - How to Install a Window Air Conditioner?
A non-removable/window type air conditioner should be installed in such a way its rear is tilted downward by 10mm (0.39in) to 15mm (0.59in) so that indoor condensed water can smoothly flow to the rear.
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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