The error codes for LG air conditioners can be checked by the numbers on the display or the number of times the LED lamp blinks, depending on the product type (wall-mounted, floor-standing, ceiling-mounted, etc.).
If you want to know the cause of the error and how to solve it most easily and accurately, we recommend using the 'Smart Diagnosis' feature in the LG ThinQ app.
How do I check the error code for each type of air conditioner?
How to check wall-mounted air conditioner error codes
Wall-mounted air conditioners indicate error codes by the number of times the LED lamp on the main unit blinks.
- First LED: Indicates the error number in the ones place.
- Second LED: Indicates the error number in the tens place.
(Example: If the second LED blinks 5 times and the first LED blinks 3 times, it is a 'CH53' error.)
How to check floor-standing air conditioner error codes
Floor-standing air conditioners alternate between the English letters 'CH' and numbers on the front display.
- Simply read the letters and numbers appearing on the display in order.
How to check ceiling-mounted air conditioner error codes
Depending on the model, ceiling-mounted air conditioners indicate errors by blinking LED indicator lamps (green or red) or numbers on the display.
- LED lamp models: Indicate errors in the hundreds, tens, and ones based on the blinking interval of the lamp. (The display method may vary depending on the number of air outlets and lamps.)
- Display models: The English letters 'CH' and the error code number appear repeatedly at 0.5-second intervals.
How to check portable and window air conditioner error codes
Depending on the product's display type, numbers are shown directly on the LCD screen, or you can check the error code by the blinking LED lamp.
How can I easily diagnose error codes with the LG ThinQ app?
If it is difficult to check the error code, you can easily diagnose the product's status using your smartphone through the LG ThinQ app. Please follow these steps.
- 1. After launching the LG ThinQ app on your smartphone, select 'Smart Diagnosis' from the 'Menu' tab at the bottom of the home screen.
- 2. Select the air conditioner product to be diagnosed, and start the smart diagnosis following the on-screen instructions.
- 3. Through the smart diagnosis results, you will be guided on the current status of the product, error symptoms, and specific solutions.
- 4. If it is difficult to resolve the issue using the provided instructions, you can solve the problem by connecting to the customer service center directly within the app.
Precautions
- Using smartphone recording: When it is difficult to distinguish the error because the LED blinks quickly or is complex, like on a ceiling-mounted air conditioner, you can identify the error code much more easily by recording a video with your smartphone and slowly checking the repeating section.
- When errors are displayed on the ThinQ app: If an error occurs during operation, the product will attempt to restart itself. If the problem is not resolved even after restarting, the error will be displayed on the ThinQ app. (However, depending on the type of error, it may be displayed immediately.)
Frequently Asked Questions (FAQ)
- Q. Do I always have to request a service visit if an error code appears?
- A. No. There are many error codes that you can easily resolve yourself, such as filter cleaning notifications or temporary communication errors. After checking the error code, please search for the code on the LG Electronics customer support website or the ThinQ app to check the solution first.
- Q. Is it better to turn off the product after checking the error code?
- A. For an accurate error code diagnosis, it is recommended to leave the power on until you check the code. After checking the code, please unplug the power cord or turn off the dedicated circuit breaker for safety, and then contact the customer service center.
This guide was created for all models, so the images or content may be different from your product.
