Error code · Room Air Conditioner

LG Air Conditioner Code Co / SC: Auto Drying Running

Co and SC appear on LG air conditioners with auto drying, which includes some window and portable units. The code is not an error. After you turn the unit off, it may run the fan for…

Low risk · DIY check OK

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Code: Co / SC
Appliance: Room Air Conditioner
Brand: LG
Warranty: 30-day workmanship

What Co / SC means

Co and SC appear on LG air conditioners with auto drying, which includes some window and portable units. The code is not an error. After you turn the unit off, it may run the fan for about ten minutes to dry the inside surfaces, and the display shows SC or Co while it does. Owners often notice the fan still moving or weak airflow after pressing off and wonder whether something is stuck. The unit is finishing a normal drying routine.

Common causes of Co / SC

Auto drying routine running after shut-off
Fan operating on purpose to dry the coil

✓ One safe check you can try

1. Leave the unit alone and let the drying routine finish. 2. Watch that the display returns to normal after about ten minutes. 3. If you want the unit fully off, wait until the routine ends before unplugging it, and then check that the fan stays quiet.

! Why to stop there

If SC or Co stays on for far longer than the drying time, we test the timer and the fan control.
If the fan runs with the unit off and the display clear, we check the control board relay.
We explain the result and quote in writing first.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Room Air Conditioner codes

LED Too BrightLG Air Conditioner LED Too Bright: Remote Brightness Control LoLG Air Conditioner Message Lo: Low Room Temperature "Outdoor Unit" MessageLG Air Conditioner "Outdoor Unit" Message: Status Display SP, CP, POLG Air Conditioner Codes SP, CP, PO: Power Cooling Mode FLLG Air Conditioner Code FL: Condensate Tank Full HiLG Air Conditioner Message Hi: High Room Temperature Lamp Does Not LightLG Air Conditioner Lamp Off After Shutdown: Filter Alarm Timing LED Blinking After Power OffLG Air Conditioner LED Blinking After Power Off: Auto Drying

Co / SCCo / SC questions

Why is the fan still running after I turned the unit off?

Auto drying keeps the fan going for about ten minutes to clear moisture from the inside of the unit. It is a normal part of the cycle and not a sign that anything is stuck.

Is Co different from SC?

They both show that auto drying is running. Which one you see depends on the display style of your model, so treat either one as the normal drying notice.

Can I stop the drying early?

It is better to let it finish, because the routine limits dampness inside the cabinet. Unplugging in the middle simply leaves that moisture behind, so wait the ten minutes.

Book a visit

Still unsure about Co / SC?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 597-5662