Help library: Help library: [LG air conditioner operation] Is the air conditioner not working or has the cooling performance deteriorated?

[LG air conditioner operation] Is the air conditioner not working or has the cooling performance deteriorated?

Troubleshooting Multi Split, Single Split, Ventilation 10/30/2023

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<h2 class="tit">Try this</h2>
        
<h3 class="sub-tit">If the exclusive circuit breaker for the air conditioner has tripped, reset the circuit
            breaker.</h3>
        <p>
            The circuit breaker is usually installed by the front door entrance or on the wall inside the shoe rack, and
            is marked as [air conditioner] or [A/C], and in some cases, an additional circuit breaker is also installed
            on the wall of the outdoor unit room.<br>
            If the circuit breaker is not set to on, electricity will not be supplied to the air conditioner, so, it
            won't operate.
        </p>        
<div class="img-only">
            <img alt="Circuit breaker for home / circuit breaker for business use" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=f8Ci5EC8oDIpvq1VP0eg&amp;portalId=P1">
        </div>
        <p>
            In case of an exclusive circuit breaker for a commercial air conditioner, check if the circuit breaker lever
            is caught in the middle.<br>
            If the circuit breaker has been tripped by the test button, the lever is caught in the middle, in which case
            the lever must be pulled all the way down and raised again.
        </p>        
<div class="img-only">
            <img alt="Industrial earth leakage breaker with earth leakage test button" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=QfLbH5zbGLqbkpCiVmTA&amp;portalId=P1"><br>
            <img alt="In the middle of the earth leakage test button of the industrial earth leakage breaker, the lever position is fully lowered and then raised again." src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=vXu1Kf7Pm07KaDg6NEIQ&amp;portalId=P1">
        </div>
        
<h3 class="sub-tit">Open wide the ventilation window in the outdoor unit room.</h3>
        <p>
            Open wide the ventilation window (gallery) in the outdoor unit room.<br>
            If you use the product without opening the gallery in the outdoor unit room, cold air may not come out due
            to an increase in the temperature of the outdoor unit.<br>
            Remove any obstacle from around the outdoor unit to ensure sufficient effective ventilation.
        </p>        
<div class="img-only">
            <img alt="Open the ventilation window in the outdoor unit room" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=Da2PsLeCjEcgq9xf7giiA&amp;portalId=P1"><br>
            <img alt="Clear obstacles around the outdoor unit" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=63iLWmDizrjsTa7PD5PgQ&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 operation] Is the air conditioner not working or has the cooling performance deteriorated?

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