LG Multi-Inverter - Page 48

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Only for training and service purposes
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4. Trouble Shooting
1.3 Error Indicator (Outdoor)
Outdoor Error
Ex) Error 21 (DC Peack)
1 Time 1 Time 1 Time
2 Times2 Times2 Times
1 Sec.
2 Sec. 2 Sec.
1 Sec. 1 Sec.
LED01G
(RED)
LED02G
(GREEN)
Error
Contents
LED01G/M LED02G/M
Case of Error
Outdoor
Code (Red) (Green) Status
21 DC Peak (IPM Fault) 2times ◑ 1time ◑ Over Rated Current Off
22 CT 2(Max CT) 2times ◑ 2times ◑ Input Over Current Off
23 DC Link Low Volt. 2times ◑ 3times ◑ DC Link Volt is below 140Vdc Off
24 L_P/H_P Switch 2times ◑ 4times ◑ Low/High Press Switch Open Off
25 Low Voltage/Over Voltage 2times ◑ 5times ◑ Abnormal AC Volt Input Off
26 DC Compressor Position Error 2times ◑ 6times ◑ Compressor Starting Fall Error Off
27 PSC/PFC Fault Error 2times ◑ 7times ◑ Inverter PCB input current is over100A(peak) for 2us
Off
28 DC Link High Volt 2times ◑ 8times ◑ Off Off
29 COMP Over Current 2times ◑ 9times ◑ Over Inverter Compressor Current Off
31 CT Error 3times ◑ 1time ◑ Low Current Off
32 D-Pipe High (INV) 3times ◑ 2times ◑ Off Off
33 D-Pipe High (Normal) 3times ◑ 3times ◑ Off Off
40 CT Sensor (Open / Short) 4times ◑ O CT Circuit Malfunction Off
41 INV. D-Pipe Th Error 4times ◑ 1time ◑ Open/Short Off
44 Outdoor Air Th Error 4times ◑ 4times ◑ Open/Short Off
45 Cond. Pipe Th Error 4times ◑ 5times ◑ Open/Short Off
46 Suction Pipe Error 4times ◑ 6times ◑ Open/Short Off
47 Const D-Pipe Th Error 4times ◑ 7times ◑ Open/Short Off
51 Capacity Over 5times ◑ 1time ◑ Over combination Off
52 Signal Error(DSP Board <-> Main Board) 5times ◑ 2times ◑ Communication Poorly Off
53 Signal Error (Indoor <-> Outdoor) 5times ◑ 3times ◑ Communication Poorly Off
60 EEPROM Check Sum Error 6times ◑ O Check Sum Mismatching Off
61 Cond. Pipe Th High 6times ◑ 1time ◑ Cond. Temp. High Off
62 Heatsink Th High 6times ◑ 2times ◑ Heatsink Temp. High Off
63 Cond. Pipe Th Low 6times ◑ 3times ◑ Cond. Temp. Low Off
65 Heatsink Th Error 6times ◑ 5times ◑ Open/Short Off
67 Outdoor BLDC Fan Lock 6times ◑ 7times ◑ Outdoor Fan is not operating Off
73 PFC Fault Error(S/W) 7times ◑ 3times ◑ Over Current of Outdoor Unit PFC Off