Find out more in your region. Error Code Search offers information on the cause of the malfunction and the status of your air conditioner by entering the error code. System error codes. Daikin Error code u0- Shortage of refrigerant. Probable causes: Refrigerant shortage and/or refrigerant clogging (wrong piping) Defective Daikin thermistor; Defective low-pressure sensor; Defective outdoor unit's main PCB; Error U1- Reverse phase, open phase. Probable causes: Power supply reverse phase; T- phase open phase 348 Share 46K views 1 year ago FULLY AIRCONDITIONED This video shows how find the fault code using the remote controller on a daikin ductless mini split or split system , it also show how to SiUS041501E i Table of Contents Inverter Pair Wall Mounted Type FTK(X)N-N, FTK(X)-N Series zCooling Only Indoor Unit FTKN09NMVJU FTK09NMVJU FTKN12NMVJU FTK12NMVJU cassette type ffq-q series heat pump indoor unit ffq09q2vju ffq12q2vju ffq15q2vju ffq18q2vju outdoor unit rx09qmvju rx12qmvju rx15qmvju rx18qmvju rx09rmvju rx09rmvju9 rx09rmvju9a rx12rmvju rx12rmvju9 rx12rmvju9a rx15rmvju rx15rmvjua rx18rmvju rx18rmvju9 rx18rmvju9a i have been asked today to have a look at a daikin cassette in a pub that has a fault. i have'nt had much to do with these units so please bear with me. first fault is communication code u4 from what i can read into the wiring diagram i think this would be wire 3 to the outdoor unit. Cassette AC with 360° uniform airflow sets the standard. Avoid uneven temperature and wind-induced discomfort Enhanced comfort with Round FlowEasy to adapt to installation spacesCompact body and quiet operationQuick and easy to installEasier to maintain. fault Malfunction of AC input current sensor system Malfunction of suction air thermistor Malfunction of discharge air thermistor Malfunction of humidity sensor system Malfunction of switch box thermistor Malfunction of high pressure switch Malfunction of thermostat sensor in remote controller Protection devices activated (unified) Malfunction Fault diagnosis by remote controller The remote controller can receive relevant error codes from the indoor unit. When is held down for about 5 seconds, "00" blinks in the temperature display section. Press repeatedly until a long beep is produced. The code indication changes as shown below, and notifies with a long beep. A9 Indoor Malfunction of EEV AF Indoor Drain level above limit - clogged AJ Indoor Malfunction of capacity set device DAIKIN AC "C" Error Codes C3 Indoor Malfunction of drain thermistor C4 Indoor Malfunction of liquid pipe thermistor C5 Indoor Malfunction of gas pipe thermistor C7 Indoor Lower louvre limit switch - motor ERROR CODE SEARCH. By checking the error code, you are able to identify the status and the issue of the air conditioner/air conditioning system. The Error Code Search offers information on the cause of the malfunction and the status of your air conditioner by entering the error code. Malfunction code * Location of buttons varies by model type. Operation Display when lamp In case of BRC1E62 Screen If operation stops due to malfunction, the remote controller's operation indicator blinks. The massage "Error: Press Menu Button" will appear at the bottom of the screen. system code meaning; 00: normal: ua: indoor-outdoor unit combination fault: u0: refrigerant shortage: u2: drop voltage or main circuit overvoltage: u4: failure of transmission (between indoor unit and outdoor unit) A Comprehensive list of Daikin Error & Fault Codes for Malfunction. Simple Self Diagnosis & troubleshooting of Daikin VRV Systems, SkyAir, HRV, Chillers Current sensor error Power voltage failure Instantaneous power failure Outdoor air humidity sensor error Hot water valve error Fan motor of return air over current Fan motor of return air overload Ozone density abnormal Drain level system error Sensor system of drain water error High pressure switch (HIPS) activated High Pressure switch is fault nGjK.

daikin cassette fault codes