Daikin CVXM20A2V1B User Reference Manual page 56

9 | Troubleshooting
User reference guide
56
Error code Description
Signal transmission error (between indoor and outdoor unit)
Indoor/outdoor unit combination fault
System malfunction
Indoor unit
Error code Description
Indoor unit PCB abnormality
Freeze-up protection or high-pressure control
Fan motor (DC motor) abnormality
Streamer unit error
Indoor heat exchanger thermistor abnormality
Room temperature thermistor abnormality
Humidity sensor error
Outdoor unit
Error code Description
4-way valve abnormality
Outdoor unit PCB abnormality
Actuation of high pressure switch (HPS)
Overload activation (compressor overload)
Compressor lock
DC fan lock
Discharge pipe temperature control
High-pressure control (in cooling mode)
Compressor system sensor abnormality
Malfunction of high pressure switch (HPS)
Position sensor abnormality
DC voltage / current sensor abnormality
Outdoor temperature thermistor abnormality
Discharge pipe thermistor abnormality
Outdoor heat exchanger thermistor abnormality
Malfunction of liquid pipe thermistor (refrigerant circuit and
others)
Electrical parts heat error
Radiation fin temperature rise
Inverter instantaneous overcurrent (DC)
Radiation fin thermistor abnormality
Compressor internal temperature error
CVXM20+FVXM25~50A2V1B
Split system air conditioners
4P625990-1A – 2020.10