Help library: Help library: LG Air Conditioner Error Code - "Co" appears on the display. The product does not turn off

LG Air Conditioner Error Code - "Co" appears on the display. The product does not turn off

Troubleshooting Accessory, Multi V 09/23/2025

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<body >

<div class="content-service-view">
<p class="info-desc">The auto drying function may not run, and the product may turns off if operation of the product finishes in the stopping reservation, or the sleeping reservation completion mode.</p>

<h3 class="sub-tit">Auto drying function</h3>
<p>
The auto drying function starts when stopping the mode.<br/>
Once the auto drying function starts, the air conditioner runs in the fan mode for certain period of time to remove moisture from the evaporator.<br/>
Moisture plays a role of habitable bed of molds and bacilli, and it is recommended to set the auto drying function to keep the air conditioner clean.<br/>
Drying conditions may vary depending on indoor temperature and humidity.
</p>

<h3 class="sub-tit">LED type auto drying displaying</h3>
<p>Status: CO is shown on the product display.</p>

<div class="img-only">
<img alt="Display window Automatic drying CO display" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=FkJRhI3F6zRDDjTKgJJa7g&amp;portalId=P1"/>
</div>
<p>
<strong>Auto drying time</strong><br/>
Product released before 2017 → Product running for 30 minutes, and then turning off.<br/>
Product release after 2017 → Product running for 10 minutes, and then turning off.
</p>

<h3 class="sub-tit">LED lamp type auto drying displaying</h3>
<p>Status: The power lamp of the product lights, and is kept turned on during auto drying duration.</p>

<div class="img-only">
<img alt="Main unit power indicator LED is on" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=qoP96uhguSgCqfEpK1nUw&amp;portalId=P1"/>
</div>
<p>
<strong>Auto drying time</strong><br/>
Product released before 2015 → Product running for 30 minutes, and then turning off<br/>
Product release after 2015 → Product running for 10 minutes, and then turning off
</p>

<h3 class="sub-tit">Display on remote control display</h3>
<p>The auto drying function is displayed on the remote control screen once it is set.</p>

<div class="con-view">
The relevant function may operate differently on different products.<br/>
The auto drying function may not run, and the product may turns off if operation of the product finishes in the stopping reservation, or the sleeping reservation completion mode.
</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 Error Code - "Co" appears on the display. The product does not turn off

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