Daikin AC Error Codes Outdoor Units
Fault Code Definition Supposed Causes Split Skyair VRV Package
E0 | Protection devices tripped | Outdoor safety device tripped |
E1 | Failure of outdoor PCB | Defect of PCB or noise |
E3 | High pressure | High pressure switch tripped |
E4 | Low pressure | Low pressure switch tripped |
E5 | Inverter compressor lock | Inverter compressor locked |
E5 | Inverter compressor to hot | Compressor windings too hot |
E6 | DOL compressor locked | High current draw |
E7 | Fan motor failure | Failed fan motor, PCB |
E8 | Inv compressor high current | Compressor, PCB |
E9 | EEV motor failure | EEV motor, PCB |
EA | 4-way valve failure | Defect of valve, PCB, sensor |
EC | Inlet water temperature | Abnormal water temperature |
EF | Thermal storage unit defect | Thermal storage EEV, PCB, sensor |
F3 | High discharge temperature | Discharge temperature over 110°C |
F6 | High pressure in cooling | Detected by outdoor coil sensor |
F6 | Over charged | Refrigerant over charge |
H0 | Compressor sensor system | All sensors disconnected |
H1 | Failure of humidifier damper | Defect of limit switch/damper |
H3 | Failure of hp switch | High pressure switch open circuit |
H4 | Failure of lp switch | Low pressure switch open circuit |
H5 | Failure of compressor sensor | Defect of compressor overload sensor |
H6 | Compressor position failure | Position detection error |
H7 | Failure of fan motor signal | Defect of fan motor, PCB |
H8 | Compressor input error | Defect of transistor, PCB, reactor |
H9 | Failed ambient sensor | Sensor open short circuit |
J1 | Failed pressure sensor | Pressure sensor failed |
J2 | Failed current sensor | Defect of current sensor, PCB, compressor |
J3 | Failed discharge pipe sensor | Discharge pipe sensor open/short circuit |
J4 | Failed outdoor coil vapour sensor | Sensor open/short circuit |
J5 | Failed suction pipe sensor | Sensor open/short circuit |
J6 | Failed outdoor coil sensor | Sensor open/short circuit |
J7 | Failed liquid pipe sensor | Sensor open/short circuit |
J8 | Failed liquid pipe sensor | Sensor open/short circuit |
J9 | Failed sub cool heat exchanger sensor | Sensor open/short circuit |
JA | Failed high pressure sensor | High pressure sensor open/short circuit |
JC | Failed low pressure sensor | Low pressure sensor open/short circuit |
JH | Failed oil temperature sensor | Open/short circuit |
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