Just when I thought it was completely dead, I hit the ECO button (after countless attempts to get it going) and it started again. I’m getting 13.7 ohms at both elements. Set both T-stats at 130, checked temp with laser temp gun, top element kicked off at about 130, bottom element cycled on like it should, haven’t checked temp at bottom element yet to see whether or not it shuts off at 130. Voltage spiked up to 253-255 briefly, then went back down to 237. Don’t know if that is an issue or not. Tightened smaller nut on gate valve stem, seems to have stopped the leak.
I’m still scratching my head over this, but landlords now just want it replaced. I hope problems don’t continue with a new WH. 😕