Just wanting to verify my thought process before I start trying to work on it: Aqueon Quietflow 75 HoB filter. Rattling noise after removing the extension tubing for the intake filter. Won't 'take up' water unless the pump module's housing is unclipped, and tilted sideways. A clicking noise and heavy tap (like a magnet shift) is heard and it starts to move water. Humming noise remains even after reattached to the HoB portion (left running in order to continue pumping water). Does this sound like maybe a magnet is misaligned inside?