What to Check First
- If the test run after installation of the product is not properly performed, there will be no message being displayed in the control panel window of the air conditioning head unit or, the product will immediately turn itself off soon after the installation and test run. Carry out the product test run by carefully following the instructions.
- 1. An error code occurs in the product. [No display].
- 2. 3 LEDs blink continuously at the same time.
- 3. The louver opens and then closes after a while, or it does not work.
- ➔ Product Test run might not be normally performed if the same symptom persists immediately after installation. You may ask test run to installation technician, or you can perform test run by yourself.
- ➔ Failure of test run displayed on LED lamps, Failure of test run displayed on LED lamps [Three LED lamps turned on simultaneously].
- 1. Open the louver of the indoor unit.
- 2. Keep pressing the forced operation switch on the right of the product for 3 to 6 seconds. Test run starts once you opt out from the switch when ‘cling’ sounds once from the product.
- 3. “Lo” is displayed for approximately 3 minutes during test run, and progress ratio of the required test run is displayed in numbers between 1 and 99 for approximately 4 minutes. EN is immediately displayed, and the selected mode is automatically executed for approximately 10 minutes. Wait until the test running is completed.
- [required operation]: It takes approximately 0 to 3 minutes.
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 Turns off by itself [air conditioner]?
If the test run after installation of the product is not properly performed, there will be no message being displayed in the control panel window of the air conditioning head unit or, the product will immediately turn itself off soon after the installation and test run. Carry out the product test run by carefully following the instructions.
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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