LG APUQ55GT3E0 Installation Manual page 26

SELF-DIAGNOSIS FUNCTION
26
Error
Code
21 DC Peak (IPM fault) Error
22 CT2 Error (Input of Over-Current)
23 DC Link Error (High/Low DC Voltage)
26 DC Comp Position Detection Error
27 PSC/PFC Over-Current Error (HW)
29 Comp Phase Over-Current Error
32 Discharge Pipe Overheating Error (INV Comp)
41 Discharge Pipe Sensor Error (INV Comp)
43 Pressure Sensor Error
44 Air Sensor Error
45 Cond. Mid-pipe sensor error
46 Suction Pipe Sensor Error
48 Cond. Out-Pipe Sensor Error
51 Over-Capacity Connection Error
52 Communication Error between Main PCB Inverter PCB
53 Communication Error between Outdoor Device Indoor Device
54 Open and Reverse Phase Error
60 EEPROM Check Sum Error
61 Outdoor Device Pipe Overheating Error
62 Heat-sink Overheating Error
65 Heat-sink Sensor Error
Outdoor BLDC Fan Lock Error
67
refer to Outdoor fan PCBA Error Table
73 PSC/PFC Over-Current Error (SW)
Outdoor Fan PCBA Error Table
Error
Description
Code
1 ODU Fan PCBA IPM Fault
2 Fan Over Current Error
4 Fan Starting Failure Error
5 Fan PCB EEPROM Error
If abnormal voltage is supplied, the protection circuits will turn off the product in order to prevent
the component damage. The product will automatically restart after 3 minutes.
- Having or not of fan PCB error code is different from model.
- Refer contents of 'Error indicator(Outdoor)' to check the fan PCB of your model.
Description
Error Display
7 segment Red LED Green LED
2 times ◑ 1 time ◑ 10 times within 1h
CH 21
2 times ◑ 2 times ◑
CH 22
2 times ◑ 3 times ◑
CH 23
2 times ◑ 6 times ◑ 10 times within 1h
CH 26
2 times ◑ 7 times ◑ 10 times within 1h
CH 27
2 times ◑ 9 times ◑ 10 times within 1h
CH 29
3 times ◑ 2 times ◑
CH 32
4 times ◑ 1 time ◑
CH 41
4 times ◑ 3 times ◑
CH 43
4 times ◑ 4 times ◑
CH 44
4 times ◑ 5 times ◑
CH 45
4 times ◑ 6 times ◑
CH 46
4 times ◑ 8 times ◑
CH 48
5 times ◑ 1 time ◑
CH 51
5 times ◑ 2 times ◑
CH 52
5 times ◑ 3 times ◑
CH 53
5 times ◑ 4 times ◑
CH 54
6 times ◑
CH 60 -
6 times ◑ 1 time ◑
CH 61
6 times ◑ 2 times ◑
CH 62
6 times ◑ 5 times ◑
CH 65
6 times ◑ 7 times ◑ 10 times within 1h
CH 67
7 times ◑ 3 times ◑
CH 73
Error Display
Green LED
1 time ◑
2 times ◑
4 times ◑
5 times ◑
Operation
Count
State
Stop
Infinite restart Stop
Infinite restart Stop
Stop
Stop
Stop
Infinite restart Stop
1 time within 1h Stop
1 time within 1h Stop
1 time within 1h Stop
1 time within 1h Stop
1 time within 1h Stop
1 time within 1h Stop
1 time within 1h Stop
1 time within 1h Stop
1 time within 1h Stop
1 time within 1h Stop
1 time within 1h Stop
Infinite restart Stop
Infinite restart Stop
1 time within 1h Stop
Stop
Infinite restart Stop
Operation State
Stop
Stop
Stop
Stop