Help library: Help library: LG Air Conditioner - Inspection code: CH66

■ Title -

Inspection code:

&nbsp;

■ Problem -

Error/Display

screen

■ Symptom -

Error

code

&nbsp;

(CH00~299)

■ Possible Cause

&nbsp; -

CH66 error can occur when there is a problem with the communication line connection or the piping connection between the indoor unit and the outdoor unit.

■ Solution or Settings

※

Check

points<p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

&nbsp;

1.

&nbsp;

Did the CH66 error code occur after installation/reinstallation

of the appliance?</div>

</div>

</div> <p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

&nbsp;&nbsp;&nbsp; ▶

CH66

code detects communication error and piping connection problems of the inverter indoor unit and outdoor unit.<p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Installation technician should check if the communication lines and the piping is properly installed.<p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

&nbsp;<p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

2.

Did the CH66 error code occur after using the appliance for a period of time?<p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

&nbsp;&nbsp; ▶

Electrical problems such as electrical instability can cause temporary error.<p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;

Unplug the power

cord or shut off the circuit breaker and turn the power on after 5 minutes.<p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

&nbsp; <p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

&nbsp;&nbsp;&nbsp; &nbsp;&nbsp; If the error continues after taking the above measure, request for a

qualified technician to inspect the appliance.<p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

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■ Summary

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&nbsp;&nbsp;&nbsp;

[If the error occurs after the installation] The technician needs to inspect the appliance again.

&nbsp;&nbsp;&nbsp;

[If the error occurs during the operation] Reset the circuit breaker of the appliance and check if the error is gone.

&nbsp;&nbsp;&nbsp;

If the symptom continues, the technician needs to inspect the appliance again. <p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

&nbsp;<p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;"> <p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;"> <p style="margin: 0pt 0in; text-align: left; line-height: 80%; text-indent: 0in; font-family: Arial; font-size: 12pt; vertical-align: baseline; unicode-bidi: embed; direction: ltr; language: ko; punctuation-wrap: hanging;">

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LG Air Conditioner - Inspection code: CH66

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