NJPUAI error code

Nanjing PUAI error code is Er03. ER01, ER02 is the temperature alarm, if there is such an alarm, the temperature probe inside the direct pull out on it. ER03 is the inverter alarm, sometimes the big conditions will occasionally appear such an alarm, if what conditions are such an alarm, it is likely to be the IGBT joint parts are bad. ER04 is the filament alarm, the general is the piece of filament board. ER05 is the rotating anode alarm, generally rotating anode alarm. ER07 is the time overflow alarm, change a 24C16 chip can be.