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
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
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
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daikin cassette fault codes