Error Codes - Dehumidifier | LG USA Support

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Find helpful information about your LG product LG Dehumidifier - Error Code List

Operation
Dehumidifiers
07/25/2025

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LG Dehumidifier - Error Code List

At a Glance

If your LG dehumidifier is having an operating issue the unit is programmed to communicate diagnostic messages displayed as codes. Most issues related to common error codes can be resolved by following the troubleshooting solutions below.

Try This

CH Error Code
A CH error code indicates there is a refrigerant leak.

Unfortunately, there are no troubleshooting steps for this error code. The unit will require a repair service, please visit our online Request a Repair page for further assistance.
CH 24 Error Code
A CH 24 error code indicates a pressure switch error.
To Resolve:
1. Make sure the air filter in the unit is clean.
2. Remove any items or reposition the unit so that the air flow is not obstructed.
3. Perform a reset on the unit by unplugging it for at least 3 minutes.
4. Restore power to the unit. If the issue occurs again, the unit will require repair service
If service is required, please visit our Request a Repair for further assistance.
CH 67 Error Code
A CH 67 error code indicates a fan lock error.
To Resolve:
1. Unplug the dehumidifier from the wall outlet.
2. Allow the unit to remain unplugged for 3 minutes.
3. Restore power to the unit. If the issue occurs again, the unit will require repair service.
If service is required, please visit our Request a Repair for further assistance.
CH 01 Error Code
A CH 01 error code indicates electronic abnormalities, such as a humidistat or main board issue.
To Resolve:
1. Unplug the dehumidifier for 20 seconds to reset the unit.
2. Restore power to the unit.
3. If the issue occurs again, the unit will require repair service.
If service is required, please visit our Request a Repair for further assistance.
CH 02 Error Code
A CH 02 error code indicates electronic abnormalities, such as a humidistat or main board issue.
To Resolve:
1. Unplug the dehumidifier for 20 seconds to reset the unit.
2. Restore power to the unit.
3. If the issue occurs again, the unit will require repair service.
If service is required, please visit our Request a Repair for further assistance.
CH 03 Error Code
A CH 03 error code indicates electronic abnormalities, such as a humidistat or main board issue.
To Resolve:
1. Unplug the dehumidifier for 20 seconds to reset the unit.
2. Restore power to the unit.
3. If the issue occurs again, the unit will require repair service.
If service is required, please visit our Request a Repair for further assistance.

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