Fluval C4 Motor Grinding
I have a C4 that's been used a few days now, and it's been quiet and now all of a sudden the motor is grinding(sounds like my aqueon if it was running dry). I've ripped the entire thing apart and cleaned it, put it back together, and it's still doing it. Every once in a while it stops and i get excited thinking it's done, then it starts again. The motor isn't hot to touch like it's working hard or anything, it's just grinding. Any ideas how I can fix it? Or is it something that might work itself out?