Help library: Help library: [LG Air Conditioner Error Code][Wall-Mounted] CH and 61 alternatively blink on the display

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<div class="content-service-view">
<p class="info-subject">
[Cooling] Inspection code of error CH 61 can be displayed to protect the product when the temperature of the
evaporator of the outdoor unit rises high.<br/>
[Heating] Error code CH61 may appear if the temperature inside the indoor unit rises high because of thick
layer of dusts on the indoor unit filter.
</p>

<h2 class="tit">Causes and Symptoms</h2>
<p><strong>[Cooling]</strong></p>

<li>The window of the outdoor unit chamber is closed.</li>

<li>Obstacles are stacked around the outdoor unit to interrupt ventilation.</li>

<li>Error code CH61 does not disappear from the display.</li>
</ul>
<p><strong>[Heating]</strong></p>

<li>The indoor unit filter is covered with thick layer of dust.</li>
</ul><br/>
<p class="info-desc">
<strong>[Cooling]</strong><br/>
Error code CH61 appears when the temperature in the outdoor unit rises high during the cooling mode.<br/>
If the place of the outdoor unit is not well ventilated, hot air does not exhaust out of the building, and
the temperature in the outdoor unit chamber rises high.<br/>
The error code is displayed for preventing fire and product failure.
</p><p class="info-desc">
<strong>[Heating]</strong><br/>
Error code CH61 appears if the temperature inside the indoor unit rises high during operation of the air
conditioner in the heating mode.<br/>
The error code appears if outdoor is not well inhaled into the indoor unit. The major cause is contamination
of the indoor unit filter.
</p>

<h3 class="sub-tit">[During cooling mode] Is the ventilation window of the outdoor unit chamber closed?</h3>
<p class="info-desc idt">➔ Open the ventilation window or the mosquito net.</p>        <p>
If the temperature in the outdoor unit chamber rises high, hot air may flow into the air conditioner.<br/>
Open the window or the ventilation window of the outdoor unit chamber.
</p>

<div class="con-view">
Keep the louver of the ventilation window horizontal as possible.
</div>

<h3 class="sub-tit">Are there a number of obstacles around the outdoor unit?</h3>
<p class="info-desc idt">➔ Remove obstacles around the outdoor unit to ensure good ventilation.</p>        <p>
If obstacles are stacked around the outdoor unit, hot air from the outdoor unit is not discharged out of the
building.<br/>
Hot air from the outdoor unit returns into the outdoor unit back.<br/>
In such a case, the air conditioner operate under overload to cause higher electric bill and degrading of
cooling capability.<br/>
Remove obstacles from the front, the sides and the rear of the outdoor unit for ensuring sufficient
ventilation.
</p>

<h3 class="sub-tit">Is the outdoor unit installed at height lower than the ventilation window?</h3>
<p class="info-desc idt">➔ Keep the outdoor unit aligned with the ventilation window.</p>        <p>
If the outdoor unit is installed at height lower than the ventilation window, some of hot air is not
discharged out of the building.<br/>
It is desirable to install a stand under the outdoor unit to keep the outdoor unit parallel with the
ventilation window.<br/>
Installing the stand will be charged.
</p>

<h3 class="sub-tit">Is the distance between the outdoor unit and the ventilation window great?</h3>
<p class="info-desc idt">➔ If it is hard to move the outdoor unit, install an air guide.</p>        <p>
If the distance between the outdoor unit and the ventilation window too great, ventilation becomes poor, and
the temperature inside the outdoor unit chamber may rise high.<br/>
In such a case, install an air guide to let hot air from the outdoor unit directly discharged out of the
building.
</p>

<div class="con-view">
The experiment results of LG Electronics indicate that installing an air guide drops the temperature
inside the outdoor unit chamber by approximately 6℃ to 8℃.<br/>
Air guides are available at nearby hardware stores, or Internet shopping mall.
</div>
</div>

<h3 class="sub-tit">[During heating mode] Is the indoor unit filter covered with thick layer of dusts?</h3>
<p class="info-desc idt">➔ Clean the indoor unit filter.</p>        <p>
<strong>Error code CH61 is not released by itself, and you should turn the power off, and start the product
3 minutes later.</strong><br/>
Error code CH61 is not released by itself.<br/>
If the error takes place, reset the power of the air conditioner.<br/>
Unplug the power cord, and then plug it in 3 minutes later.
</p>

<div class="img-only">
<img alt="Unplug the power cord, and then plug it in 3 minutes later." src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=ZcdtVkQk45MlKzWk7hpw&amp;portalId=P1"/>
</div>
<p>If there is no power plug, trip the circuit breaker, and then reset it 3 minutes later.</p><p class="txt-idt">※ If Error code CH61 persistently appears after power resetting, have the service manager
check 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 Error Code][Wall-Mounted] CH and 61 alternatively blink on the display

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