Error Code Table for Diamante & Quantum Wall-Mounted SystemsUpdated an hour ago
This article provides an error code table for Diamante and Quantum wall-mounted systems.
This article is for the following systems:
- Diamante Essenza High-Wall (WYT-17)
- Diamante Essenza High-Wall (WYT-20U)
- Diamante Pro High-Wall (WYT-20S)
- Quantum Ultra High-Wall (WYT-24)
- Quantum Hyperformance High-Wall (WYT-25)
- Quantum Fresh High-Wall (WYT-FA)
| Code | Reason | Remark |
| bc | PM2.5 sensor error (indoor unit; optional feature) | Use the remote control to check the error code |
| bd | Fresh air motor error | Fresh air fan motor, fan blade, indoor unit PCB |
| bE | CO2 sensor error (indoor unit; optional feature) | / |
| bf | TVOC sensor error (indoor unit; optional feature) | Use the remote control to check the error code |
| bj | Humidity sensor error (indoor unit) | Use the remote control to check the error code |
| CL | Filter cleaning reminder | Clean the air filter |
| d4 | Drain pan full protection | / |
| d5 | Access control signal protection | / |
| E0 | Indoor and outdoor units communication error | Is the wiring connection between the units correct? |
| E1 | Indoor unit room temperature sensor error | Indoor unit sensor and PCB |
| E2 | Indoor unit coil temperature sensor error | Indoor unit sensor and PCB |
| E3 | Outdoor unit coil temperature sensor error | Outdoor unit sensor and PCB |
| E4 | System abnormality / refrigerant shortage | Gas leakage / 2-way or 3-way valve blocked / etc. |
| E5 | Model configuration mismatch (production line testing only) | / |
| E6 | Indoor unit DC fan fault | Fan blade, fan motor, and indoor unit PCB |
| E7 | Outdoor unit ambient temperature sensor error | Outdoor unit sensor and PCB |
| E8 | Outdoor unit discharge temperature sensor error | Outdoor unit sensor and PCB |
| E9 | Outdoor unit IPM / compressor drive fault | Outdoor unit PCB, compressor, etc. |
| EA | Outdoor unit current sensor error | Is the outdoor unit PCB broken? |
| Eb | Communication error between indoor main PCB and display board | Display board and main PCB |
| EC | Outdoor unit module communication error | / |
| EE | Outdoor unit EEPROM error | 1. Is the outdoor unit PCB broken? 2. Try to re-power the unit |
| EF | Outdoor unit DC fan motor error | Fan motor and outdoor unit PCB |
| EH | Outdoor unit suction temperature sensor error | / |
| Ej | Outdoor unit mid-coil temperature sensor error | / |
| En | Outdoor unit gas pipe temperature sensor error | / |
| EP | Outdoor unit compressor top temperature sensor error | / |
| EU | Outdoor unit voltage detection circuit abnormality | Outdoor unit PCB |
| Ey | Outdoor unit liquid pipe temperature sensor error | / |
| F0 | Indoor unit infrared sensor error | Use the remote control to check the error code |
| F1 | Indoor unit power detection module error | Use the remote control to check the error code |
| F2 | Outdoor unit discharge temperature sensor error protection | Check the troubleshooting for details |
| F3 | Outdoor unit coil temperature sensor error protection | Check the troubleshooting for details |
| F4 | Abnormal refrigerant flow protection | Check the troubleshooting for details |
| F5 | Outdoor unit PFC protection | Check the troubleshooting for details |
| F6 | Compressor phase loss / Phase reversal protection | Check the troubleshooting for details |
| F7 | Outdoor unit IPM abnormal temperature protection | Check the troubleshooting for details |
| F8 | Outdoor unit 4-way valve reversing abnormality | Check the troubleshooting for details |
| F9 | Outdoor unit IPM temperature sensor error | Outdoor unit PCB |
| FA | Outdoor unit compressor phase current detection circuit failure | Outdoor unit PCB |
| Fb | Cooling / Heating overload frequency limit | Use the remote control to check the error code |
| FC | Frequency reduction due to high power consumption | Use the remote control to check the error code |
| Fd | Refrigerant leak sensor communication error | Check the troubleshooting for details |
| FE | Outdoor unit IPM / compressor phase overcurrent protection | Use the remote control to check the error code |
| FF | Frequency reduction due to high IPM temperature | Use the remote control to check the error code |
| FH | Frequency reduction due to compressor drive limit | Use the remote control to check the error code |
| Fj | Frequency reduction due to high discharge temperature | Use the remote control to check the error code |
| Fn | Frequency reduction due to high AC input current | Use the remote control to check the error code |
| FP | Frequency reduction to prevent condensation | Use the remote control to check the error code |
| FU | Frequency reduction to prevent coil freezing | Use the remote control to check the error code |
| Fy | Refrigerant deficiency protection | Check the troubleshooting for details |
| H1 | Outdoor unit high-pressure switch error | / |
| H2 | Outdoor unit low-pressure switch error | / |
| Hd | Refrigerant leak protection | / |
| P0 | Outdoor unit IPM protection | Outdoor unit PCB |
| P1 | Overvoltage / undervoltage protection | 1. Is the outdoor unit PCB broken? 2. Is the power supply abnormal? |
| P2 | Overcurrent protection | 1. Is the outdoor unit PCB broken? 2. Is the power supply abnormal? |
| P4 | Outdoor unit high discharge temperature protection | Check the troubleshooting for details |
| P5 | Cooling / Dry mode overcooling protection | Check the troubleshooting for details |
| P6 | Cooling mode overheat protection | Check the troubleshooting for details |
| P7 | Heating mode overheat protection | Check the troubleshooting for details |
| P8 | Outdoor ambient high / low temperature protection | Check the troubleshooting for details |
| P9 | Outdoor unit compressor drive overload protection | Check the troubleshooting for details |
| PA | Mode conflict / indoor unit upper airflow module communication error | Check the troubleshooting for details |