Inverter poops out.

 Woke up one morning and the Epever Tracer 3210 had quit working.

I got on eBay and started searching. I discovered a newer model, from the same company, with higher current rating.

The Epever Triron 4210 was advertised with a repairable defect. The price was better than I expected. The unit is in the mail and should arrive Wednesday. 

The newer model should be a plugin replacement that requires no modification to the existing software/hardware setup.