|
01
|
Indoor float switch activated |
|
02
|
High pressure cut (PSH) |
|
03
|
Abnormality between indoor and outdoor unit |
|
04
|
Communication error between inverter PCB and outdoor PCB |
|
05
|
Supply phase error / open phase |
|
06
|
Abnormal inverter or fan controller voltage |
|
07
|
Decrease in discharge gas superheat |
|
08
|
Increase in discharge gas temperature |
|
0A
|
Communication abnormality between outdoor units |
|
11–16
|
Thermistor faults across the indoor sensor set — inlet air, outlet air, freeze protection, gas piping, liquid piping and room air sensors |
|
17
|
Discharge temperature sensor fault |
|
21
|
High pressure sensor fault |
|
22
|
Outdoor air thermistor fault |
|
23
|
Discharge gas thermistor (compressor top) fault |
|
29
|
Low pressure sensor fault |
|
31
|
Incorrect capacity setting |
|
38
|
Abnormality of protection circuit |
|
43
|
Pressure ratio decrease protection |
|
45
|
High pressure increase protection |
|
47
|
Vacuum protection activated |
|
48
|
Outdoor DC fan motor fault |
|
51
|
Inverter current sensor fault |
|
52
|
Inverter over-current |
|
54
|
Inverter fin temperature rise |
|
55
|
Inverter failure (under-voltage) |
|
E3
|
Low pressure / refrigerant shortage (alternate code format) |
|
E4
|
Compressor discharge temperature high (alternate code format) |
|
E5
|
Over-current protection (alternate code format) |
|
E6
|
Indoor/outdoor communication fault (split-specific alternate code format) |
|
E9
|
IPM protection triggered |
|
F8
|
Outdoor fan motor anomaly |
