Daikin air conditioner error codes
By model series
All codes
0Data not yet on Network1l o o C w o L2System Mis-Match3Outdoor Coil Temp Sensor Fault *4Invalid Memory Card Data — Board Misoperation5Open Circuit6Open Start Circuit Lockout7Open Run Circuit Lockout8High Line Voltage9Low Pilot Voltage00Normal condition60Overall alarm64Failed return air sensor65Failed ambient sensor6AFailure of damper systemA0External protection activeA1Indoor unit PCB abnormalityA3High water levelA4Malfunction of freezing protectionA5Freeze-up protection controlA6Indoor fan motor (DC motor) or related abnormalityA7Failure of louvre motorA8Failure of power supplyA9EEV failureAFHigh water levelAHElectrical air cleaner abnormalAJCapacity setting errorB0Blower motor not runningB1Blower motor communication errorB2Blower motor hp mismatchB3Blower motor operating in power, temp., or speed limitB4Blower motor current trip or lost rotorB5Blower motor rotor lockedB6Over/under voltage trip or over temperature tripB7Incomplete parameter sent to motorB9Low indoor airflowC1Communication failure. Between main-sub PCBC2High stage cool - legacy mode onlyC4Indoor heat exchanger thermistor or related abnormalityC5Indoor heat exchanger (2) thermistor short / openC6Failure of fan motor driverC7Louver limit switch errorC9Indoor room thermistor short / openCADischarge air sensor faultCCFailure of humidity sensorCJFailure of remote sensorD0Data not on networkD1Invalid data on networkD4Invalid memory card dataDF0140A00070-A DEFROST - COMMUNICATING MODE ONLY (Note: defrost is displayed as H1 in a legacy setup) — GREEN…E0Protection devices trippedE1Outdoor unit PCB abnormalityE3High pressure protectionE4Low pressure protectionE5OL activation (compressor overload)E6Compressor lockE7DC fan lockE8AC input overcurrentE9EEV motor failureEAFour way valve abnormalityECInlet water temperatureEFThermal storage unit defectF3Discharge pipe temperature controlF6High pressure control (in cooling)F8Operation halt due to compressor internal temperature abnormalityFCAbnormal high pressure actuation of HPSFHFan heat - communicating mode only — fan onlyH0Compressor sensor system abnormalityH1Failure of humidifier damperH2Malfunction of power supply sensorH3High pressure switch errorH4Failure of lp switchH5Failure of compressor sensorH6Position sensor abnormalityH7Fan motor overload / overcurrent / sensor abnormalH8Compressor input errorH9Outdoor air thermistor short / openHCMalfunction of (hot) water temperature thermistorHFAlarm in thermal storage unit or storage controllerHJMalfunction of thermal storage tank water levelJ1Pressure sensor errorJ2Failed current sensorJ3Compressor discharge pipe thermistor short / open / misplacedJ4Failed outdoor coil vapour sensorJ5Suction pipe thermistor short / openJ6Outdoor heat exchanger thermistor short / openJ7Subcooling heat exchanger thermistor short / openJ8Liquid pipe thermistor short / openJ9Gas pipe thermistor short / openJAFailed high pressure sensorJCFailed low pressure sensorJEMalfunction of oil pressure sensor or sub-tank thermistorJFMalfunction of oil level sensor or heating heat exchanger thermistorJHFailed oil temperature sensorL0Failure of inverter systemL1Inverter outdoor PCB errorL3Electrical box temperature riseL4Radiation fin temperature riseL5IPM error / IGBT errorL6Inverter instantaneous overcurrent (AC output)L8Inverter compressor overcurrentL9Compressor overcurrent preventionLAFailure of power transistorLCCommunication error (outdoor control PCB and inverter PCB)M1Central controller failedM8Communication failure between central & optionsMAImproper combination of optional controllersMCDuplicated addressP0Shortage of refrigerant amount (thermal storage unit)P1Open phase or voltage unbalanceP2Automatic refrigerant charge operation stopP3Rise in electrical box temperatureP4Radiation fin thermistor or related abnormalityP8Coil freeze protection during Automatic chargingP9Failure of humidifier fan motorPABroken humidifier heater wirePCRefrigerant cylinder emptyPEAuto charge nearly completedPHHumidifier outlet temperature sensor/abnormal heater temp'PJCapacity setting errorR6U0Shortage of refrigerantU1Reverse or missing phaseU2Low-voltage detection or over-voltage detectionU3Check operation not executedU4Signal transmission error (between indoor unit and outdoor unit)U5Communication failure, between r/controller & PCBU6Communication failure between indoor unitsU7Communication error (outdoor control PCB and IPM PCB)U8Communication failure be- tween remote controllersU9System communication failedUAInstallation error (between indoor unit and outdoor unit)UCError in address settingUECommunication failure between indoor central deviceUFPiping & wiring installation mismatch / wrong wiring / insufficient gasUHSystem malfunctionUJCommunication failure