Help library: Help library: LG Air Conditioner Error Code - Display Turns Off by Itself and Won't Turn On

LG Air Conditioner Error Code - Display Turns Off by Itself and Won't Turn On

Troubleshooting Split Air Conditioners 09/18/2025

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<h2 class="tit">Causes and Symptoms</h2>

<li>The screen brightness is set to Display OFF.</li>
</ul>

<h3 class="sub-tit">Did you try to adjust screen brightness?</h3>
<p class="info-desc idt">➔ You can set the screen brightness with the remote control.</p>        <p>
There is no separate button on the product body.<br/>
A separate screen brightness adjustment button may be installed, or configured in dual buttons depending on
the product and the remote control.<br/>
Setting on the wall-mounted screen is kept unchanged unless the setting is changed. (Kept unchanged when
turning the product off and on back)
</p>

<div class="con-view">
As for the products released before July, 2021, the setting is initialized when turning the product off.
In such a case, you should set the screen again.
</div>
</div>
<p>As for the wall-mounted air conditioner, you can turn the wall-mounted display on and off with the screen
brightness button of the remote control. (This function is not applied to LED lamp model.)</p>

<h3 class="sub-tit">How to set screen brightness with wall-mounted tower remote control</h3>
<p class="txt-idt">
1. Press Set/OK button.</p><p class="txt-idt">
2. Keep pressing the right button until ‘Screen Brightness’ is displayed.</p><p class="txt-idt">
3. Press Set/OK button when ‘Screen Brightness’ is displayed.</p><p class="txt-idt">
4. <img style="vertical-align: middle;" alt="sleep button" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=9louOQqYx5ut6fDER9xrg&amp;portalId=P1"/>
You can press the button to set turning on and off.</p><p class="txt-idt">
5. press Set/OK button after setting desired function.
</p>

<h3 class="sub-tit">How to set brightness with common remote control</h3>
<p>Press Screen light off button to turn the screen on and off.</p>

<div class="img-only">
<img alt="indicating the light off of the air conditioner" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=Jv8GJez7els1NKmewOnw&amp;portalId=P1"/>
</div>
<p class="help-txt">This guide was created for all models, so the images or content may be different from your
product.</p>    </div>

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LG Air Conditioner Error Code - Display Turns Off by Itself and Won't Turn On

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