
LG Error Code CH34
Common error codes

Error Code CH34 – High Pressure Protection
LG Error Code CH34 commonly indicates high pressure protection. This can be triggered by dirty outdoor coils, blocked airflow, outdoor fan faults, or refrigerant overcharge.
✅ Hycool Air Conditioning Sydney can diagnose LG CH34 faults and restore safe operating pressures. If CH34 appears, contact Hycool now.