Help Library: Help Library: How to Troubleshoot Error Codes CH10, CH67, E6, and EF on Your LG Air Conditioner

How to Troubleshoot Error Codes CH10, CH67, E6, and EF on Your LG Air Conditioner

Troubleshooting Residential air conditioner 08/19/2026

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<div class="content-service-view" itemtype="HowTo">
      <p class="description">
        The CH10, CH67, E6, or EF error code indicates a problem with your air
        conditioner's indoor or outdoor fan motor.<br/>
        Check the exposed fan for any visible debris, such as snow or leaves,
        and carefully remove it. <br/>After clearing any debris, reset your air
        conditioner by turning off the power and turning it back on. <br/>If
        the error code persists, contact LG Customer Support for assistance.
      </p>
      
<h3 class="warn-tit">Warning</h3>
      
<ul class="bul-list">
        
<li>
          Do not disassemble the air conditioner or replace internal parts
          yourself. Doing so may cause fire, electric shock, serious injury, or
          death.
        </li>
        
<li>
          If the error code persists, stop using the air conditioner and contact
          LG Support.
        </li>
      </ul>

<h2 class="tit mainName">Why Does the Error Code Appear?</h2>
      <p>
        The air conditioner displays an error code when its self-diagnostic
        system detects a problem.<br/>
        This typically occurs if debris, such as snow or leaves, is blocking the
        fan, or if there is a malfunction with the fan motor, wiring, or control
        board.<br/>
        Note that your air conditioner may stop operating if these components do
        not work properly.
      </p>
      
<h2 class="tit">How to Troubleshoot the Error Code</h2>
      
<div class="HowToStep">
        
<h3 class="name">Step 1. Check for Debris Around the Fan</h3>
        <p class="text">
          Check the fan for any visible debris, such as snow or leaves.<br/>
          If the debris is accessible, put on protective gloves and carefully
          remove it.
        </p>      </div>
      
<div class="HowToStep">
        
<h3 class="name">Step 2. Reset the Power</h3>
        
<ol class="text">
          
<li class="txt-idt">
            1. Unplug your air conditioner. If you cannot access the power plug,
            turn off the circuit breaker.
          </li>
          
<li class="txt-idt">2. Wait about five minutes.</li>
          
<li class="txt-idt">
            3. Plug your air conditioner back in or turn on the circuit breaker.
          </li>
          
<li class="txt-idt">4. Check if the error code has cleared.</li>
        </ol>
      </div>
      
<div class="HowToStep">
        
<h3 class="name">Step 3. Still Need Help?</h3>
        <p class="text">
          If the issue persists after following the steps above, you can get
          further support through LG Chatbot on our website or by requesting a
          technician visit.<br/>
          Note: A service fee may apply if your product is out of warranty.
        </p>      </div>

<h2 class="tit">Frequently Asked Questions (FAQ)</h2>
      
<div class="tip-box qna-list">
        <dl>
          <dt>
            
<span role="img" aria-label="Question">Q.</span> Can I Continue
            Using the Air Conditioner if the Error Code Disappears After
            Restarting?
          </dt>
          <dd>
            
<span role="img" aria-label="Answer">A.</span> This usually happens
            due to a temporary power or communication issue. <br/>You can
            continue using your air conditioner if it operates normally. If the
            error code persists, stop using your air conditioner and contact LG
            Support for service.<br/>
            A repeated error may indicate an internal circuit or wiring problem.
          </dd>
        </dl>
      </div>
      <p class="help-txt">
        This guide is based on standard models. The settings menu may vary by
        model.
      </p>    </div>

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Help Library

How to Troubleshoot Error Codes CH10, CH67, E6, and EF on Your LG Air Conditioner

Warning

Why Does the Error Code Appear?

How to Troubleshoot the Error Code

Step 1. Check for Debris Around the Fan

Step 2. Reset the Power

Step 3. Still Need Help?

Frequently Asked Questions (FAQ)

Contact