What CH10, CH67, E6, EF Means
CH10, CH67, E6, and EF together indicate a problem with the indoor or outdoor fan motor, per LG's combined troubleshooting article, which can be caused by debris (like snow or leaves) blocking the fan, or a malfunction with the fan motor, wiring, or control board.
Common Causes of CH10, CH67, E6, EF
- Debris (snow, leaves) blocking the fan
- Fan motor malfunction
- Fan wiring fault
- Control board issue
🔧 One Safe Check You Can Try
Check the exposed outdoor fan for visible debris such as snow or leaves and, wearing protective gloves, carefully remove anything you can safely reach; then follow the standard reset (unplug or trip the breaker, wait about five minutes, restore power).
⚠ Why You Shouldn't Go Further Than That
- Wear protective gloves when clearing any debris near a fan, and never reach into the fan housing itself or attempt to service the motor - a service fee may apply if your product is out of warranty, per LG's own note, so weigh a DIY debris-clearing attempt against simply scheduling service if the fan area isn't easily and safely reachable.
- If clearing visible debris doesn't resolve the code, the fan motor, its wiring, or the control board needs a technician's diagnosis rather than continued resets.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.