The motor never fails in a power surge, the magnetic coupling can slip and fail to restart. This happens more often in some brands than others, and when the impeller is gunk up. All HOB motors are made water seal, and can operate as a submersible pump thereby eliminating the possibility of water triggered short inside the motor.It was a power strip problem, not the filters lol.
And you're exactly right. They're cheap, low wattage, high rpm/low torque motors. The kind that sometimes fail with a power surge![]()