One of my pumps stopped working this morning. I removed it and checked it for power (it was getting power).
The sump was filled right to the top, so I used a big shop-vac to remove most of the water.
The motor would not turn-over. I assumed it was in over-heat mode.
After a while, I tested it again. It started working, but made a loud scraping sound. I assume something, maybe rocks are inside the impeller cage.
Anyways this pump looks like it's been underwater for years (it's been mostly dry), I'm going to repair it, if possible and keep it as a back-up spare. I've ordered another pump from big 'A' and will clean out sump and install it 3" up off of bottom.
https://www.amazon.com/gp/product/B08GZDCQR7
I'm currently running the pumps off the Back-up power system. Got good sun, so the panels are providing power for the basement hardware (this office PC + wifi gear) and charging up the backup batteries. This is the best test yet, with real pump loads.