Whatever happened, happened suddenly when the pump was running. Now, it wont pump. The shaft is spinning, and I can hand turn the impeller, but its not moving water. It is making a slight rattling sound, like a loose garbage disposal that is running empty.
I tried to follow the motor removal instructions, but after taking off the 4 motor bolts, the motor wont come off. It just rotates freely. Its supposed to be 'carefully removed' after taking the 4 bolts off. I'm stuck since taking the whole pump put would involve me cutting pipe.