LG AC Error Code CH10: Quick Guide to Causes and Fixes
LG AC error code CH10 usually indicates a problem with the indoor fan motor or airflow system. Learn the causes, symptoms, troubleshooting steps, and solutions.
ERROR CODES
3/4/20262 min read
What Does LG AC Error Code CH10 Mean?
If your LG air conditioner displays error code CH10, it usually indicates a problem with the indoor fan motor or the airflow system.
The indoor fan motor is responsible for circulating cool air throughout the room. When the system detects that the fan is not operating correctly or airflow is restricted, it automatically stops the AC and shows the CH10 error code to prevent further damage.
This error commonly appears in LG inverter split air conditioners.
Common Symptoms
When the CH10 error occurs, you may notice several signs such as:
Weak or no airflow from the AC
Indoor unit making unusual noises
AC turning off automatically
Error code CH10 appearing on the display
These symptoms usually indicate that the indoor fan cannot operate normally.
Main Causes of LG AC Error Code CH10
1. Faulty Indoor Fan Motor
The most common reason is a malfunctioning indoor fan motor. If the motor stops working, the AC cannot circulate air properly.
2. Dust or Blocked Air Filters
Dirty air filters can restrict airflow and cause the system to detect a fan or airflow problem.
3. Fan Motor Wiring Issues
Loose or damaged wiring between the fan motor and control board can interrupt operation.
4. Faulty Indoor PCB
The indoor unit’s control board (PCB) manages fan motor operation. If it fails, the fan may stop working.
Basic Troubleshooting Steps
You can try the following simple steps before calling for service.
Step 1: Turn Off the AC
Switch off the air conditioner using the remote control.
Step 2: Disconnect the Power
Turn off the main power supply or circuit breaker connected to the AC.
Step 3: Clean the Air Filters
Remove and clean the air filters to ensure proper airflow.
Step 4: Wait 10–15 Minutes
Allow the system to reset completely.
Step 5: Restart the AC
Restore the power and turn the AC back on.
If the issue was caused by airflow blockage or a temporary glitch, the error may disappear.
When to Contact a Technician
If the CH10 error continues to appear, professional servicing is recommended.
A technician may:
Inspect the indoor fan motor
Check wiring connections
Test the indoor PCB board
Replace faulty components if necessary
Electrical repairs should always be handled by qualified professionals.
How to Prevent CH10 Error
Proper maintenance can help avoid this issue in the future.
Follow these tips:
Clean AC filters every 2–4 weeks
Schedule regular AC servicing
Keep indoor vents unobstructed
Ensure professional installation
Maintaining proper airflow helps the system run smoothly.
Final Thoughts
The LG AC error code CH10 usually indicates an indoor fan motor or airflow issue. While cleaning filters and resetting the system may solve minor problems, persistent errors typically require inspection of the fan motor or control board.
Fixing the issue early helps maintain efficient cooling and extends the life of your air conditioner.
Read More: