LG APUW100LFT0 - Page 31

SELF-DIAGNOSIS FUNCTION
31
ENGLISH
Error
Code
Description
Error Display
Count
Operation
State
7 segment Red LED Green LED
21 DC Peak (IPM fault) Error CH 21 2 times ◑ 1 time ◑ 10 times within 1h Stop
22 CT2 Error (Input of Over-Current) CH 22 2 times ◑ 2 times ◑ Infinite restart Stop
23 DC Link Error (High/Low DC Voltage) CH 23 2 times ◑ 3 times ◑ Infinite restart Stop
26 DC Comp Position Detection Error CH 26 2 times ◑ 6 times ◑ 10 times within 1h Stop
27 PSC/PFC Over-Current Error (HW) CH 27 2 times ◑ 7 times ◑ 10 times within 1h Stop
29 Comp Phase Over-Current Error CH 29 2 times ◑ 9 times ◑ 10 times within 1h Stop
32 Discharge Pipe Overheating Error (INV Comp) CH 32 3 times ◑ 2 times ◑ Infinite restart Stop
35 Low Pressure Drop CH 35 3 times ◑ 5 times ◑ Infinite restart Stop
41 Discharge Pipe Sensor Error (INV Comp) CH 41 4 times ◑ 1 time ◑ 1 time within 1h Stop
43 Pressure Sensor Error CH 43 4 times ◑ 3 times ◑ 1 time within 1h Stop
44 Air Sensor Error CH 44 4 times ◑ 4 times ◑ 1 time within 1h Stop
45 Cond. Mid-pipe sensor error CH 45 4 times ◑ 5 times ◑ 1 time within 1h Stop
46 Suction Pipe Sensor Error CH 46 4 times ◑ 6 times ◑ 1 time within 1h Stop
48 Cond. Out-Pipe Sensor Error CH 48 4 times ◑ 8 times ◑ 1 time within 1h Stop
51 Over-Capacity Connection Error CH 51 5 times ◑ 1 time ◑ 1 time within 1h Stop
52 Communication Error between Main PCB Inverter PCB CH 52 5 times ◑ 2 times ◑ 1 time within 1h Stop
53 Communication Error between Outdoor Device Indoor Device CH 53 5 times ◑ 3 times ◑ 1 time within 1h Stop
54 Open and Reverse Phase Error CH 54 5 times ◑ 4 times ◑ 1 time within 1h Stop
60 EEPROM Check Sum Error CH 60 6 times ◑ - 1 time within 1h Stop
61 Outdoor Device Pipe Overheating Error CH 61 6 times ◑ 1 time ◑ Infinite restart Stop
62 Heat-sink Overheating Error CH 62 6 times ◑ 2 times ◑ Infinite restart Stop
65 Heat-sink Sensor Error CH 65 6 times ◑ 5 times ◑ 1 time within 1h Stop
67
Outdoor BLDC Fan Lock Error
refer to Outdoor fan PCBA Error Table
CH 67 6 times ◑ 7 times ◑ 10 times within 1h Stop
73 PSC/PFC Over-Current Error (SW) CH 73 7 times ◑ 3 times ◑ Infinite restart Stop