Logs Menu
In this section of the device, error codes that occurred over time are recorded. The time of the error event and the error code are displayed.
| Code | Error | Description/Cause |
|---|---|---|
| T1 | Temperature T1 | Faulty/disconnected NTC sensor T1 |
| T2 | Temperature T2 | Faulty/disconnected NTC sensor T2 |
| T3 | Temperature T3 | Faulty/disconnected NTC sensor T3 |
| T4 | Temperature T4 | Faulty/disconnected NTC sensor T4 |
| T5 | Temperature T5 | Faulty/disconnected NTC sensor T5 |
| T6 | Temperature T6 | Faulty/disconnected NTC sensor T6 |
| FS | Flow Switch S1 | Flow error at input S1 |
| FI | Flow Sensor I1 | Flow error at input I1. No or low flow below the value set in menu 8.1 Flow protection |
| E6 | Communication Error | Disconnected, damaged, or incompatible outdoor unit |
| FP | Frost Protection | Temperature T3 at the heat exchanger outlet lower than the set frost protection temperature in menu 8.2 Frost protection |
| F3 | ODU - F3 | Outdoor unit temperature sensor error – outdoor temperature |
| F4 | ODU - F4 | Outdoor unit temperature sensor error – evaporator temperature |
| dc | ODU - dc | Outdoor suction temperature sensor error |
| P7 | ODU - P7 | IPM and PFC modules temp sensor are abnormal |
| F5 | ODU - F5 | Outdoor discharge temperature sensor error |
| L9 | ODU - L9 | High power protection |
| E2 | ODU - E2 | Freeze prevention protection |
| P8 | ODU - P8 | Temperature of heat sink or IPM, PFC module is high |
| H5 | ODU - H5 | Module current protection |
| E5 | ODU - E5 | AC current protection |
| E8 | ODU - E8 | Overload protection of system |
| E4 | ODU - E4 | High discharg temperature protection for compressor |
| H3 | ODU - H3 | Compressor overheating protection |
| dn | ODU - dn | |
| LP | ODU - LP | Indoor unit and outdoor unit models can’t be matched with each other |
| F0 | ODU - F0 | Lack of refrigerant protection |
| PL | ODU - PL | DC input voltage is too low |
| PH | ODU - PH | DC input voltage is over high |
| HC | ODU - HC | PFC protection |
| Ld | ODU - Ld | Phase loss protection of compressor |
| L3 | ODU - L3 | Outdoor fan 1 error |
| LA | ODU - LA | Outdoor fan 2 error |
| U7 | ODU - U7 | 4-way valve reversing abnormality |
| U9 | ODU - U9 | Circuit malfunction for zero-crossing detection of outdoor unit |
| EE | ODU - EE | Memory chip error of outdoor unit |
| HE | ODU - HE | Compressor demagnetization protection |
| H7 | ODU - H7 | Desynchronizing of compressor |
| U1 | ODU - U1 | Circuit malfunction for compressor’s phase current detection |
| PU | ODU - PU | Charging circuit malfunction of big electrolytic capacitor |
| U5 | ODU - U5 | Current detection error |
| U3 | ODU - U3 | DC bus bar voltage drop error |
| E1 | ODU - E1 | High pressure protection of system |
| E3 | ODU - E3 | low pressure protection of system |
| PE | ODU - PE | |
| P9 | ODU - P9 | |
| PF | ODU - PF | |
| LF | ODU - LF | |
| P0 | ODU - P0 | |
| Lc | ODU - Lc | Compressor startup failure |
| LE | ODU - LE | |
| P5 | ODU - P5 | Overcurrent of compressor is detected by drive board |
| P6 | ODU - P6 | |
| Pd | ODU - Pd | |
| A7 | ODU - A7 | Error of exit tube temperature sensor of condenser |
| A5 | ODU - A5 | Error of inlet tube temperature sensor of condenser |
| b7 | ODU - b7 | Gas valve temperature sensor error |
| b5 | ODU - b5 | Liquid valve temperature sensor error |