I've got a Centurion pump, Part # 7-168453-24, 3450 RPM. The other day when I was backwashing the DE filter, I turned the pump off to reset the valve. When I went to turn it back, it just buzzed and nothing. Tapped it with the handle of a screwdriver, and it stopped buzzing but didn't work. Happened to touch it and it was WAY too hot to touch.
Turned off the switch, and let the pump cool down overnight. Took it all apart today to make sure the impeller wasn't jammed. It is was clear and the shaft turns just fine. No grinding, no binding. Put it all back together and it now turns on just fine. Turned it off and figured I'd better ask as to why it was running so hot.
Looking at the case, from the impeller side, the right side of the case, below the starting capacitor is brown, in an oblong shape, whereas the rest of the case is still black. I'm thinking its been running hot for several weeks/months.
Anyway, any thoughts about what is going on?
Thanks in advance.