Home>Articles>How To Fix The Error Code CH49 For LG Air Conditioner

How To Fix The Error Code CH49 For LG Air Conditioner How To Fix The Error Code CH49 For LG Air Conditioner


How To Fix The Error Code CH49 For LG Air Conditioner

Written by: Emma Thompson

Learn how to fix the CH49 error code on your LG air conditioner with our informative articles. Never struggle with this issue again!

(Many of the links in this article redirect to a specific reviewed product. Your purchase of these products through affiliate links helps to generate commission for Storables.com, at no extra cost. Learn more)

Having Trouble with Your LG Air Conditioner? Learn How to Fix the CH49 Error Code

There’s nothing worse than the sweltering heat of summer, only to realize that your LG air conditioner is not working properly. When you see the dreaded CH49 error code flash on the display, frustration can quickly set in. But fear not! As an expert on the subject, I’m here to guide you through this error and provide you with simple solutions to get your air conditioner back up and running.

Key Takeaways:

  • Don’t let the CH49 error code on your LG air conditioner leave you hot and bothered. Check wiring, reset the inverter PCB, and clean air filters to potentially resolve the issue. If all else fails, seek professional assistance for a cool solution.
  • Understanding the CH49 error code is the first step to regaining your air conditioner’s functionality. Take proactive steps like checking wiring connections and resetting the inverter PCB to troubleshoot the issue. If needed, don’t hesitate to call in the pros for expert help.

Understanding the CH49 Error Code

Before we delve into the solutions, let’s take a moment to understand what the CH49 error code means. This error indicates an outdoor unit communication error with the inverter PCB in your LG air conditioner. In other words, there might be a communication issue between the outdoor unit and a particular component called the inverter PCB. This can result in your air conditioner not functioning optimally or not working altogether.

How to Fix the CH49 Error Code

Now, let’s get down to business and discuss how you can fix the CH49 error code. Remember, safety first! Before attempting any troubleshooting, make sure to turn off the power supply to your air conditioner to avoid any electrical hazards.

  1. Check the Wiring Connections: Start by examining the wiring connections that connect the outdoor unit with the inverter PCB. Ensure that there are no loose or damaged wires. If you find any issues, correct or replace them accordingly.
  2. Reset the Inverter PCB: Sometimes, a simple reset can resolve the CH49 error code. Locate the inverter PCB (consult your user manual if needed) and press the reset button. Wait for a few minutes before turning the power supply back on.
  3. Clean the Air Filters: Dirty air filters can also contribute to communication errors. Remove the air filters and clean them thoroughly with warm, soapy water. Allow them to dry completely before reinstalling them back into the air conditioner.
  4. Professional Assistance: If the above steps don’t resolve the issue, it’s best to reach out to a qualified technician. They have the expertise and necessary tools to diagnose and fix complex issues, ensuring your air conditioner returns to its optimal state.

Remember, regular maintenance and timely repairs go a long way in ensuring the proper functioning of your LG air conditioner. If you’re unable to fix the CH49 error code on your own, don’t hesitate to seek professional help.

To fix the error code CH49 for an LG air conditioner, try resetting the unit by turning off the power for 5 minutes and then turning it back on. If the error persists, contact a professional technician for further assistance.


Dealing with an error code like CH49 can be frustrating, but armed with the right knowledge, you can tackle the issue head-on. By checking the wiring connections, resetting the inverter PCB, and cleaning the air filters, you can potentially resolve the error and restore the functionality of your LG air conditioner. If all else fails, don’t hesitate to contact a professional technician for assistance. Stay cool and enjoy the comfort of a properly functioning air conditioner!

Frequently Asked Questions about How To Fix The Error Code CH49 For LG Air Conditioner

What does the error code CH49 indicate on my LG Air Conditioner?

The error code CH49 on your LG Air Conditioner indicates a communication error between the indoor and outdoor units of the AC system. This error can occur due to various reasons, such as faulty wiring, a malfunctioning control board, or a damaged sensor.
How can I reset the error code CH49 on my LG Air Conditioner?

To reset the error code CH49 on your LG Air Conditioner, you can try a simple power reset. Turn off the AC unit and disconnect it from the power source. Wait for a few minutes and then plug it back in. This action can sometimes clear the error code and restore normal operation.
How do I check the wiring connections to resolve the error code CH49?

To check the wiring connections and potentially resolve the error code CH49, you need to first ensure the power is turned off. Open the indoor and outdoor unit covers and inspect the wiring connections for any loose or disconnected wires. If you find any, reconnect them securely. If the issue persists, it is advisable to seek professional assistance.
Can a faulty control board cause the error code CH49?

Yes, a faulty control board can be one of the causes of the error code CH49 on your LG Air Conditioner. The control board is responsible for facilitating communication between the indoor and outdoor units. If the control board malfunctions, it can interrupt the communication and trigger the CH49 error code. In such cases, it is recommended to contact a qualified technician for repair or replacement of the control board.
Is there a way to resolve the error code CH49 without professional help?

While some basic troubleshooting steps can help clear the error code CH49, resolving the issue completely may require professional help. The error code may indicate a more complex problem, such as a damaged sensor or a significant wiring issue. Contacting an authorized service center or a trained technician will ensure a proper diagnosis and resolution of the error code CH49.

Was this page helpful?

At Storables.com, we guarantee accurate and reliable information. Our content, validated by Expert Board Contributors, is crafted following stringent Editorial Policies. We're committed to providing you with well-researched, expert-backed insights for all your informational needs.


0 thoughts on “How To Fix The Error Code CH49 For LG Air Conditioner

Leave a Comment

Your email address will not be published. Required fields are marked *