LG CH 10 error code

What it means

CH 10 means the indoor fan is being restrained or its fan motor is not operating properly. Without reliable indoor airflow, the unit cannot heat or cool safely.

Urgency

Likely causes

1. Indoor fan restraint or lock
2. Foreign material affecting the fan drive area
3. Snow or environmental buildup affecting fan operation where applicable
4. Indoor fan motor fault

Homeowner fix

Turn the system off. Look only for obvious external obstruction at the indoor outlet and remove nothing that requires opening the cabinet. If CH 10 returns, leave the system off.

When to call a pro

Call a licensed HVAC technician if CH 10 returns, the indoor fan is noisy, or airflow is weak. Tell them LG identifies CH 10 as indoor fan lock or indoor fan motor fault.

Repair vs replace

Fan problems are usually repairable. Compare replacement only if an older unit needs a costly motor plus board or other major work.

• LG Mega R-32 9,000 BTU (115V)

  Mega R-32

• LG Mega R-32 9,000 BTU (230V)

  Mega R-32

• LG Mega R-32 12,000 BTU (115V)

  Mega R-32

• LG Mega R-32 12,000 BTU (230V)

  Mega R-32

For your technician

Technician note: inspect indoor fan wheel, obstruction, fan motor, harness, and indoor board fan output/feedback. Page context: LG maps this display to the Mega R-32 line; source: LG official support pages: [LG Air Conditioner] Guide to Error Codes; [LG Air Conditioner] How to Check Air Conditioner Error Codes; LG status-display help articles; LG Korea [LG Air Conditioner] Air conditioner error inquiry cross-check; display convention: match the letter C, letter H, and ten marker exactly before comparing neighboring codes.

Which systems show it

Mega R-32

Related troubleshooting

Use the symptom guide alongside the exact display code if the unit is flashing, cycling, or showing comfort symptoms.

Related codes

Source

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