LG BACnet Touch Installation & Owner's Manual page 82

74
Troubleshoot
Error Code
55 Communication error (central to main controller)
56 Communication error (main to central controller)
57 Communication error (main board to inverter board)
58 Incorrect connection of tax product (tax-exempt indoor unit to taxed outdoor unit)
59 Mixed installation of slave outdoor unit
60 PCB EEPROM error (MULTI V: inverter PCB EEPROM error)
61 Inverter discharge temperature error (high)
62 Heatsink error (high)
63 Outdoor pipe temperature error (low)
65 Heatsink Th error (open/short)
66 Bad connection/piping (incorrect connection of wire, pipe, LEV, etc.)
67 Outdoor fan lock error (with BLDC)
68 Static speed comp CT open (add MPS)
69 Static #1 CT sensor error
70 Static #2 CT sensor error
71 Input CT sensor error
72 Communication error (louver ↔ fan)
73 Input instant over-current (peak)
74 Inverter PCB phase unbalance
75 Fan CT sensor error
76 Fan DC link over-voltage error
77 Fan over-current error
78 Fan hall sensor error
79 Fan start failure error
80 Louver motor over-current
81 Louver limit SW error
82 A-cycle low pressure error
83 B-cycle low pressure error
84 A-cycle high pressure error
85 B-cycle high pressure error
86 Main PCB EEPROM error
87 Fan PCB EEPROM error
88 PFC PCB EEPROM error
89 Detachable type distributor communication error
Description