The dealer had my PHEV for two days and finally determined it was the EVSE (the cable) that was bad. I was able to get a replacement 110v cable and it's back in my garage charging. Fingers crossed.
It reminds me of the time I bought a digital audio recorder and a quality microphone. The recorded sound was terrible. I took it back and the salesperson said, "I bet it's the cable. It's always the cable." He replaced it and, voila, great sound.
2018 Kia Niro PHEV EX Premium - Aurora Black