Error Codes. This page helps you to do simple self-diagnosis by malfunction code. By entering the error code, you are able to identify the status of the air conditioner and the cause of its malfunction. 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 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. 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) 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 Climate Talk Fault Code Dealer error message Blower motor not running Blower communication error Blower motor HP mismatch Blower motor is operating in a power, temperature, or speed limiting condition Blower motor is operating in a power, temperature, or speed limiting condition Blower motor current trip or lost rotor position A Comprehensive list of Daikin Error & Fault Codes for Malfunction. Simple Self Diagnosis & troubleshooting of Daikin VRV Systems, SkyAir, HRV, Chillers 7y6gfE.

daikin cassette fault codes