Hello. I have replaced my motor (Century B230SE) once before and it went fine (thanks to the videos on INYO). I tried replacing it again yesterday. When I pulled the motor away, the diffuser did not not out, so I had to reach in to get it.
I followed the video instructions like before, in particular the one here https://www.inyopools.com/HowToPage/how_to_replace_a_motor_shaft_seal.aspx
which notes that the diffuser should "snap on, no screws". I found the "top" label, but it would snap on...After assembling everything I tried putting the motor back in without the diffuser snapped on...just inserted.
Got the same result - just making humming noise. How does the diffuser snap on? Could a piece have broken off? Does the diffuser rotate with the impeller? Many of the parts inside had a white coating on them. I am hoping that I can just replace the diffuser, but it seemed electrical to me (see below)....Thanks.
-------- background on pump stopping
The timer was about to turn off the pump, but I wanted it on a bit longer. Evidently, when the timer is just about to kick off or on, you can't move the dial (Intermatic brand). I forced it and the motor shut off, just making a humming noise. I figured it was electrical perhaps the capacitor, but went ahead and bought a new motor.