Help library: Help library: LG Air Conditioner - The air conditioner turns on by itself once the power cord is plugged in

LG Air Conditioner - The air conditioner turns on by itself once the power cord is plugged in

Troubleshooting Split Air Conditioners 09/23/2025

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<div class="content-service-view">
<p class="info-desc">If the auto restart function is set, the air condition starts running at once when plugging the power cord in.</p>

<div class="tip-box">
<strong class="tip-tit">What is the auto restart function?</strong>

<div class="con-view">
If power to the running air conditioner is shut down because of unexpected blackout or other external environment, the product memorizes the setup before operation shutdown,<br/>
and automatically resumes operation of the product with the memorized setup when the power is supplied back.
</div>
</div>

<h3 class="sub-tit">How to set/release the auto restart function</h3>
<p class="info-desc">➔ Wall-mounted air conditioner</p>        <p>
<strong>1. Check the location of the forced operation switch.</strong><br/>
The location of the forced operation switch may vary among the products.
</p>        <p>
[LED type wall-mounted air conditioner]<br/>
Shown on the right of the product when opening the louver of the indoor unit
</p>        <p>
[LED lamp type wall-mounted air conditioner]<br/>
Shown on the right of product when opening the front panel of the indoor unit
</p>

<div class="img-only">
<img alt="Forced operation switch position of type A and type B" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=8auMvbTRgVF2VdTHNvw50A&amp;portalId=P1"/>
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<p>
<strong>2. Keep pressing the forced operation switch for 7 to 8 seconds.</strong><br/>
[Ringing] sounds, and setting and releasing are repeated.
</p>

<div class="con-view">
When keeping pressing the forced operation switch for 3 to 4 seconds, the first [ding] sounds. (How to start the test running)<br/>
Do not opt out of the forced operation switch, but keep pressing the switch for 7 to 8 seconds until you the second ding sounds. (Auto restart function setting/releasing)
</div>
</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 - The air conditioner turns on by itself once the power cord is plugged in

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