If your air conditioner displays an error code, it indicates a specific issue with your
unit.
Codes CH05, CH53, or E0 indicate a communication problem between the indoor and outdoor units, while CH32,
CH33, CH36, CH38, or F4 point to low refrigerant levels.
If you see CH66, CH90, CH91, CH92, or CH93, it means there is incorrect wiring, an incomplete test run, or
restricted refrigerant flow during the test run.
To resolve the issue, contact your installer if the error appears shortly after installation. If the error
occurs during normal use, try resetting your air conditioner.
If the error code persists after resetting, contact LG Customer Support for further assistance.
Your air conditioner displays an error code when its self-diagnostic system detects an internal issue. To
prevent damage, your air conditioner will stop operating if a component malfunctions.
If you see code CH05, CH53, or E0, it indicates a communication problem between the indoor and outdoor
units. This can be caused by a temporary communication or power error, faulty wiring, a loose connector, or
an issue with the main circuit board.
Codes CH32, CH33, CH36, CH38, or F4 point to a refrigerant or compressor-related problem, which may result
from a temporary power issue, or a malfunction in the outdoor unit's compressor, drive, protection circuit,
or internal electronic components.
Lastly, codes CH66, CH90, CH91, CH92, or CH93 indicate an installation or test run problem, such as
incorrect wiring, an incomplete test run after installation, or restricted refrigerant flow during the test
run.
If the error code appears shortly after installation, contact your installer directly. This often indicates a loose connection or a refrigerant leak that occurred during the installation process.
Unplug your air conditioner from the power outlet.
Turn off the power at the circuit breaker if you cannot access the power plug.
Wait for about five minutes to allow the system to fully reset.
Plug the unit back in or restore power at the circuit breaker.
Check if the error code has
cleared.
Move left or right to check the contents.
This guide was created for all models, so the images or content may be different from your product.
Your email has been successfully registered.
The restocking notification has already been updated.
Add items to your MY LG wishlist
OTP authentication failed. Please verify your mobile number to use for mobile OTP login.
Split your purchase into equal monthly payments*
* Subject to credit approval
Choose PayPal at checkout and select PayPal Credit.
Representative Example: Assumed Credit Limit £1200 - Purchase Rate 23.9% p.a. (variable) - Representative 23.9% APR (variable).
PayPal Credit is a regulated credit agreement.
LG Electronics U.K. Ltd acts as a credit broker, not a lender.
Borrowing more than you can afford or missing payments may negatively impact your financial position and your ability to obtain credit.
If you fail to make repayments or in certain other circumstances, PayPal may remove your offer, and any outstanding amount will be charged at your standard variable rate.
View full Terms & Conditions and FAQs for PayPal Credit here
