If your air conditioning system shows any strange symptoms, the first thing to do is to check for an error code on the display. By doing this, you will be able to identify the status of the air conditioner and the malfunction that it is suffering. Of course, it is impossible to decipher the code without explanation. This is exactly what you will find below, in the list of error codes for TGM air conditioners.
| Display | LED STATUS |
| E0 | EEPROM parameter error |
| E1 | Indoor / outdoor units communication protection |
| E2 | Zero-crossing signal error |
| E3 | Fan speed out of control |
| E5 | Open or short circuit of outdoor ambient or condenser temperature sensor |
| E6 | Open or short circuit of indoor room or evaporator temperature sensor |
| P0 | Inverter module (IGBT) over-strong current protection |
| P1 | Overvoltage or too low voltage protection |
| P2 | Temperature protection of compressor top. |
| P4 | Inverter compressor drive error |
TGM F series air error codes
| Operation lamp | Timer lamp | Display | LED STATUS |
| ☆ 1 time | X | E1 | EEPROM parameter error |
| ☆ 2 times | X | E2 | Zero-crossing signal detection error |
| ☆ 3 times | X | E3 | Indoor fan speed has been out of control |
| ☆ 5 times | X | E5 | Indoor room temperature sensor T1 open circuit or short circuit |
| ☆ 6 times | X | E6 | Evaporator coil temperature sensor T2 open circuit or short circuit |
| ☆ 2 times | o | EC | Refrigerant leakage detection |
| O（light） X（off） ☆（flash） | | | |