Help Library: Help Library: [LG Air Conditioner Error Code] The display turned off by itself Not turned on

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<h2 class="tit">Causes and Symptoms</h2>
        
<ul class="cause-list">
            
<li>The screen brightness is set to Display OFF.</li>
        </ul>
        
<h2 class="tit">Try this</h2>
        
<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="tip-box">
            <strong class="tip-tit">Note</strong>
            
<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] The display turned off by itself Not turned on

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