Help library: Help library: [LG Air Conditioner Noises] A loud noise is heard from the outdoor unit

[LG Air Conditioner Noises] A loud noise is heard from the outdoor unit

Troubleshooting Accessory, Multi V 05/26/2023

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<div class="content-service-view">
        <p class="info-desc">
            The cooling motor for the inverter type air conditioner will reduce or increase the number of rotations for the motor depending on the difference between the indoor temperature and the target temperature.<br>
            If the indoor temperature is high and thus cooling is required, then the number of rotations for the cooling motor is increased for higher cooling performance, thus noises can be louder.<br>
            And, as the indoor temperature gets close to the target temperature, the number of rotations for the cooling motor is reduced and the noises will be also reduced.
        </p>        
<h2 class="tit">Causes and Symptoms</h2>
        
<ul class="cause-list">
            
<li>For cooling operation, the cooling motor(compressor) is operating at high speed.</li>
            
<li>When the outdoor unit is operating, there is shaking sound from the handrail angle.</li>
            
<li>There are alien substances inside the outdoor unit.</li>
        </ul>
        
<div class="img-only">
            <img alt="Cooling motor revolution decreases as the room temperature approaches the desired temperature" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=og0QpxNkHE2W6Vui2u5J6g&amp;portalId=P1">
        </div>
        
<h3 class="sub-tit">Is the outdoor unit installed in the stair angle?</h3>
        
<div class="tip-box">
            <strong class="tip-tit">Wait! Here are more tips</strong>
            
<div class="con-view">
                Noises can be generated from the joint of stair or angle.<br>
                Find the part generating noises and fix it with a cable tie or steel wire and etc.
            </div>
            
<div class="img-only">
                <img alt="Fix the noise generating area of the indoor unit with a cable tie, etc" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=gkCCttifisbG1ZrIZ2yOBg&amp;portalId=P1">
            </div>
        </div>
        
<h3 class="sub-tit">Are there alien substances inside the outdoor unit?</h3>
        <p>
            Check if there is branch or alien substances stuck in the fan of the outdoor unit.<br>
            Make sure to turn off the power and remove alien substances.
        </p>        
<div class="img-only">
            <img alt="Foreign substances such as leaves or branches should not accumulate inside the outdoor unit" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=ILcIouEMGDfGcBTJWjxUIQ&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 Noises] A loud noise is heard from the outdoor unit

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