Just replaced the UST1072 motor on my Hayward Superpump a little over a week ago with a new Century unit and it is already seizing periodically when it turns back on after being off. Happened twice so far out of ~10 times being turned off in total. Does not trip the breaker, but buzzes for a few moments then shuts itself off (similar to what the old completely seized motor sounded like). After about 2-3 minutes it will turn back on like nothing happened. Works perfectly fine when in use.
Any idea what is happening other than being sent a dud pump? Thought I would check with the experts here before sending it back for a replacement.