Error Code Table for CYB-20, CYK-24, FYB-24, RYB-20, and UYB-20 SystemsUpdated a few seconds ago
This article provides an error code table for Diamante and Quantum light-commercial systems.
This article is for the following systems:
- Quantum Ultra 4-Way Ceiling Cassette (CYB-20)
- Quantum Ultra Single-Way Ceiling Recessed Cassette (CYK-24)
- Quantum Ultra Floor-Mount Console (FYB-24)
- Quantum Ultra Slim-Duct Ceiling Concealed (RYB-20)
- Quantum Ultra Universal Flex (UYB-20)
| Code | Reason |
| dF | Defrost mode (Not an error code) |
| EC07 | Outdoor unit fan speed abnormal |
| EC51 | Outdoor unit EEPROM parameter error |
| EC52 | Outdoor unit coil temperature sensor (T3) error |
| EC53 | Outdoor unit ambient temperature sensor (T4) error |
| EC54 | Compressor discharge temperature sensor (TP) error |
| EC55 | IGBT temperature sensor (TH) open-circuit or short-circuit error |
| EC71 | Outdoor unit fan overcurrent fault |
| EC72 | Outdoor unit fan phase fault |
| EC73 | Outdoor unit DC fan zero-speed fault |
| EC74 | Outdoor unit fan current sampling offset fault |
| EC75 | Outdoor unit fan module protection or hardware overcurrent protection |
| EH00 | Indoor unit EEPROM error |
| EH03 | Indoor unit abnormal fan speed |
| EH0A | Indoor unit EEPROM parameter error |
| EH0b | Communication error between the display board and indoor unit PCB |
| EH0E | Water-level alarm error |
| EH0F | Intelligent Eye sensor error |
| EH12 | Main or secondary unit error |
| EH30 | Indoor unit fan parameter error |
| EH31 | Indoor unit fan (1) speed error |
| EH32 | Indoor unit fan (2) speed error |
| EH35 | Indoor unit fan phase fault |
| EH36 | Indoor unit fan current sampling offset fault |
| EH37 | Indoor unit fan zero-speed fault |
| EH38 | Indoor unit fan stall fault |
| EH39 | Indoor unit fan out-of-step fault |
| EH3A | Outdoor unit fan DC bus undervoltage protection |
| EH3b | Outdoor unit fan DC bus overvoltage protection |
| EH3E | Indoor unit fan overcurrent fault |
| EH3F | Indoor unit fan module protection or hardware overcurrent protection |
| EH60 | Indoor unit room temperature (T1) error |
| EH61 | Indoor unit evaporator coil temperature sensor (T2) error |
| EHbA | Communication error between the indoor unit and fan module |
| EHb3 | Communication error between the indoor unit PCB and wired controller (For KJR-120X/KJR-120M/KJR-120N series wired controller) |
| EHb5 | Intelligent Eye sensor communication fault |
| EHC1 | Refrigerant leak detected |
| EHC2 | Refrigerant sensor reading out of range and leak detected |
| EHC3 | Refrigerant sensor reading out of range |
| EL01 | Indoor and outdoor units communication error |
| EL0C | Insufficient refrigerant |
| EL11 | Communication error between the main and secondary units |
| FH07 | Communication error between the indoor unit and auto-lifting panel |
| FHCC | Refrigerant sensor fault |
| LC01 | Compressor frequency limited by outdoor coil temperature (T3) |
| LC02 | Compressor frequency limited by discharge temperature (TP) |
| LC03 | Compressor frequency limited by abnormal current |
| LC05 | Compressor frequency limited by abnormal voltage |
| LC06 | Compressor frequency limited by PFC protection |
| LC30 | Compressor frequency limited by high pressure |
| LC31 | Compressor frequency limited by low pressure |
| LH00 | Compressor frequency limited by indoor coil temperature (T2) |
| LH07 | Compressor frequency limited by remote control setting |
| LH30 | Indoor unit fan current limit protection |
| LH31 | Indoor unit fan voltage limit protection |
| PC00 | Outdoor unit IPM protection |
| PC01 | Outdoor unit voltage protection |
| PC02 | Compressor top or IPM temperature protection |
| PC03 | High or low pressure protection |
| PC04 | Inverter compressor drive error |
| PC06 | Compressor discharge temperature (TP) protection |
| PC08 | Outdoor unit abnormal current protection |
| PC0A | Condenser high-temperature protection |
| PC0F | PFC module error |
| PC0L | Outdoor unit low ambient temperature protection |
| PC10 | Undervoltage protection |
| PC11 | Overvoltage protection |
| PC12 | DC voltage protection |
| PC30 | System overpressure protection |
| PC31 | System underpressure protection |
| PC40 | Communication error between the outdoor main control chip and compressor drive chip |
| PC41 | Input overcurrent protection |
| PC42 | Compressor startup error |
| PC43 | Phase loss protection (3-phase power supply) |
| PC44 | Outdoor unit zero-speed protection |
| PC45 | 341PWM error |
| PC46 | Abnormal compressor speed |
| PC49 | Compressor overcurrent protection |
| PH09 | Anti-cold air protection in Heating mode |
| PH0C | Indoor unit humidity sensor fault |
| PH90 | Evaporator coil high-temperature protection |
| PH91 | Evaporator coil low-temperature protection |