Mã Lỗi 62, 6201, 6202, 6203 Self Diagnosis Device Disturbance

Event numbers 62, 6201 6202 and 6203 indicate a disturbance in the residual-current monitoring unit (RCMU) (= DI converter) of the inverter.

Error 62 or 6201 / 6202 / 6203 “Self-diagnosis” or “Device disturbance” is shown on the display, and the red LED lights up. When the error occurs, the inverter does not feed any power in.

 If the message does not lead to relevant yield losses, e.g. because it only appears for a short time during the startup or shutdown process, no further action is necessary. The cause in this case is the fluctuating PV power in the lowest limit range.

However, if the message appears repeatedly or continuously, even after a full restart , the cause and corrective action must be clarified by SMA Service.



In this case, please contact the SMA Service    with the following Information:

	Device type and serial number of the Inverter
	Event number
	How long has the error been present for now? Is it sporadic or continuous?
	Has a restart  been performed yet?
	Are there further error messages?