22
LG 22 Error Code – CT2 Error
Air Conditioner · CRITICAL Severity
What This Error Means
Current transformer 2 (CT2) error; AC input current is too high
Diagnostic & Repair Steps
1
Power Off Immediately
CT2 error indicates high AC input current.
CT2 error indicates high AC input current.
RESET
~2 min
2
Check Power Supply
Measure incoming voltage and current.
Measure incoming voltage and current.
TEST
~10 min
3
Inspect Outdoor PCB CT Circuit
Check current transformer circuit. ⚠️ Disconnect power first
Check current transformer circuit. ⚠️ Disconnect power first
INSPECT
~15 min
4
Check Compressor and Refrigerant
Incorrect conditions can cause high current. ⚠️ Certified technician only
Incorrect conditions can cause high current. ⚠️ Certified technician only
TEST
~20 min
5
Refer to LG Service Manual
Visit www.lg-dfs.com for detailed troubleshooting.
Visit www.lg-dfs.com for detailed troubleshooting.
CHECK
~10 min
Need professional PCB repair in Colombo?
LG 22 errors often require board-level repair. Bottrixx, a trusted electronics repair company in Colombo 02, diagnoses and repairs Air Conditioner PCBs with fast turnaround and same-day service available.
Related LG Error Codes