Mitsubishi MSZ-GL09NA Mini Split Error Codes
MSZ-GL09NA Error Code Reference
Section titled “MSZ-GL09NA Error Code Reference”Mitsubishi MSZ-GL 9000 BTU single-zone ductless mini-split with built-in Wi-Fi.
| Error Code | Fault Description |
|---|---|
| E1 | High pressure protection activated |
| E4 | Low pressure / refrigerant shortage detected |
| E6 | Communication error between indoor and outdoor unit |
| E7 | Outdoor fan motor fault |
| EE | EEPROM memory error on control PCB |
| U4 | Signal transmission failure (control bus) |