Solar charge controller suddenly disappeared from GX, internal breaker tripped and solar +/- are seem to be shorted. Panel Voc has never been over 200V and Isc over 30A. What could cause such a failure? Device itself only a few months old.
asked
EasySolar-II GX MPPT shorted
I had the exact same thing 2 months ago... I have a new solar controller in mine thanks to the warranty... I did comment the same here a while back. Glad to see I’m not the only one... worried that I’m not the only one... hate to think this is going to happen again if there is some sort of generic (design) fault,,,
I’d put money on if you had been watching the console when the power output when above 2000w the MPPT suddenly started dropping to 1000-1300w for no reasonable explanation just for a second every so often and when it went over 2500W it did it a lot more frequently... (inverse spike)... could have been firmware 2.57... I’m on few 2.58 now (since the new MPPT ... not seen it very often now and touch wood it’s still running...
I had something similar happen, system was producing 2800 watts and all of a sudden went to zero, voltage at pv terminals was about 180 volts, but at the MPPT was essentially battery voltage
Unit was 6 weeks old
This is not the same as the OP's problem. If your PV input was shorted, you would not have 180v.
Check you fuse/breaker between the mppt and battery.
It happen to be a defective solar charge controller. It took few weeks to get it back fixed, but at least it was covered by warranty.
