Error code · Room Air Conditioner

LG Air Conditioner Codes CH10, CH67, E6, EF: Fan Motor Trouble

These codes appear on LG air conditioners that show CH codes. CH10 and E6 point to the indoor unit fan, and CH67 and EF point to the outdoor unit fan. Debris such as snow or leaves,…

Medium · inspection needed

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Code: CH10, CH67, E6, EF
Appliance: Room Air Conditioner
Brand: LG
Warranty: 30-day workmanship

What CH10, CH67, E6, EF means

These codes appear on LG air conditioners that show CH codes. CH10 and E6 point to the indoor unit fan, and CH67 and EF point to the outdoor unit fan. Debris such as snow or leaves, the fan motor, wiring, or the control board can all produce them. The owner sees the code, airflow is weak or absent, and the unit may shut itself down to protect the fan system.

Common causes of CH10, CH67, E6, EF

Debris stuck in or around the fan
Fan motor not turning freely
Fan wiring or connector
Control board fan output

✓ One safe check you can try

1. Switch the unit off and unplug it or turn the breaker off. 2. Remove visible debris such as leaves or snow from the outside of the fan area, without reaching into the unit. 3. Wait five minutes, restore power, and restart. 4. If the code returns, keep the unit off.

! Why to stop there

A reset cannot tell us whether the motor or the board drives the fan, so we test the fan with power applied.
We check how freely the fan turns before looking at wiring.
We tell you what we find and quote it in writing.

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.

→Same appliance

Other Room Air Conditioner codes

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 LED Too BrightLG Air Conditioner LED Too Bright: Remote Brightness Control F1, F2, F3LG Air Conditioner Codes F1, F2, F3: Fan Speed Readout 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

CH10, CH67, E6, EFCH10, CH67, E6, EF questions

What is the difference between CH10 and CH67?

CH10 and E6 relate to the indoor fan, while CH67 and EF relate to the outdoor fan. The code tells us which end of the system to test first.

Can leaves really cause this code?

Yes. Snow, leaves, or other debris can block or slow the fan, and the unit reports it. Clearing what you can see sometimes ends it.

Is it safe to run the unit with this code?

Do not keep running it if the code returns. A fan that does not turn can let the unit overheat, so leave it off until it is checked.

Book a visit

Still seeing CH10, CH67, E6, EF?

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

(713) 597-5662