I am new to this forum but had to do something because my local pool place is baffled. I'm working on the third replacement motor by the way.
I have a Century HSQ125 motor(1.25 HP/SF 1.0). The pump is a Pentair SuperFlo High Performance 350097.
The motor will run for only 90 seconds or so and shutoff and comes back on after it cools off.
Wiring was checked and everything checked out good.
I came across this site while googling and saw someone that had the same problem, but can't find it now and don't know if their problem was resolved.