Help library: Help library: LG Air Conditioner Water Leakage - There is black water coming out of the hose

LG Air Conditioner Water Leakage - There is black water coming out of the hose

Troubleshooting Window Air Conditioners 09/12/2025

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<h3 class="sub-tit">In case of new product</h3>
<p>
During initial operation, processing oil sprayed to help smooth operation of the product can be discharged.<br/>
It is a temporary effect, so just keep monitoring if while continuing to use it.
</p>

<h3 class="sub-tit">If the symptom is observed during use</h3>
<p>
If there are too much dusts in the filter or evaporator or if it is not cleaned, then black water can be
discharged through the drain hose.<br/>
Remove dusts from the filter and the evaporator.
</p>

<div class="img-only">
<img alt="Example of black water coming out of the product drain hose" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=YRejw4zmWQYLBhbzUu24Pw&amp;portalId=P1"/>
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<p>※ Black water discharged from the drain hose at the rear of the product</p><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 Water Leakage - There is black water coming out of the hose

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