Hi all,

i have a problem with a Daikin RXYQ16M VRV II external unit. I turn the AC on then about half an hour an error J2 displays on the remote control, blinking. I turn it off wait few seconds then turn on again. Again another half an hour, and the same thing happens. I have searched around and found out that this is a fault of: 1. the current sensors, 2. the compressor, or 3. the PCB.

I need some hints how to find it out exactly which is the source of this error.
Thank you very much in advance.

Best, Josh