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How to Troubleshoot Error Codes CH10, CH67, E6, and EF on Your LG

The CH10, CH67, E6, or EF error code indicates a problem with your air conditioner's indoor or outdoor fan motor. Check the exposed fan for any visible debris, such as snow or leaves, and carefully remove it. After clearing any debris, reset your air conditioner by turning off the power and turning it back on. If the error code persists, contact LG Customer….

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TroubleshootingAir Conditioners

What to Check First

  1. Do not disassemble the air conditioner or replace internal parts yourself. Doing so may cause fire, electric shock, serious injury, or death.
  2. If the error code persists, stop using the air conditioner and contact LG Support.
  3. 1. Unplug your air conditioner. If you cannot access the power plug, turn off the circuit breaker.
  4. 2. Wait about five minutes.
  5. 3. Plug your air conditioner back in or turn on the circuit breaker.
  6. 4. Check if the error code has cleared.
  7. The CH10, CH67, E6, or EF error code indicates a problem with your air conditioner's indoor or outdoor fan motor. Check the exposed fan for any visible debris, such as snow or leaves, and carefully remove it. After clearing any debris, reset your air conditioner by turning off the power and turning it back on. If the error code persists, contact LG Customer Support for assistance.
  8. The air conditioner displays an error code when its self-diagnostic system detects a problem. This typically occurs if debris, such as snow or leaves, is blocking the fan, or if there is a malfunction with the fan motor, wiring, or control board. Note that your air conditioner may stop operating if these components do not work properly.
  9. Check the fan for any visible debris, such as snow or leaves. If the debris is accessible, put on protective gloves and carefully remove it.
  10. If the issue persists after following the steps above, you can get further support through LG Chatbot on our website or by requesting a technician visit. Note: A service fee may apply if your product is out of warranty.

Why This Can Happen

Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.

Safety and Model-Specific Guidance

Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.

Frequently Asked Questions

What should I check first for How to Troubleshoot Error Codes CH10, CH67, E6, and EF on Your LG Air Conditioner?

Do not disassemble the air conditioner or replace internal parts yourself. Doing so may cause fire, electric shock, serious injury, or death.

When should I stop troubleshooting and contact LG?

Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.

Does this guidance apply to every LG model?

Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.

Related LG Products

These model pages are linked because the stored category or exact model matches this Help Library topic.

Buying Guides for This Product Type

Features & valueAir Conditioner Features Worth Paying For — Value GuideEfficiency & running costAir Conditioner Efficiency, Energy & Running-Cost GuideHousehold use caseAir Conditioner Family & High-Use Household GuideFit & installationAir Conditioner Fit, Installation & Delivery Planning

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