Daikin RDXYQ5T8V1B Installer And User Manual page 40

10 | Troubleshooting
Installer and user reference guide
40
Main code
External protection device was activated
EEPROM failure (indoor)
Drain system malfunction (indoor)
Fan motor malfunction (indoor)
Swing flap motor malfunction (indoor)
Expansion valve malfunction (indoor)
Drain malfunction (indoor unit)
Filter dust chamber malfunction (indoor)
Capacity setting malfunction (indoor)
Transmission malfunction between main PCB and sub PCB
(indoor)
Heat exchanger thermistor malfunction (indoor; liquid)
Heat exchanger thermistor malfunction (indoor; gas)
Suction air thermistor malfunction (indoor)
Discharge air thermistor malfunction (indoor)
Movement detector or floor temperature sensor malfunction
(indoor)
User interface thermistor malfunction (indoor)
Fan or drain pump malfunction (heat exchanger unit)
PCB malfunction (compressor unit)
Current leakage detector was activated (compressor unit)
High pressure switch was activated
Low pressure malfunction (compressor unit)
Compressor lock detection (compressor unit)
Electronic expansion valve malfunction (compressor unit or heat
exchanger unit)
Discharge temperature malfunction (compressor unit)
Abnormal suction temperature (compressor unit)
Refrigerant overcharge detection
High pressure switch malfunction
Low pressure switch malfunction
Ambient temperature sensor malfunction (heat exchanger unit)
Pressure sensor malfunction
Current sensor malfunction
Discharge temperature sensor malfunction (compressor unit)
Heat exchanger gas temperature sensor malfunction (heat
exchanger unit)
Suction temperature sensor malfunction (compressor unit)
Contents
RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12