T200 thruster Tries to spin but does not

Encountered some decay matter on a lake bed which got into two thrusters. cleared them away but one thruster not spinning. the prop attempts to spin but stops…(like power to thruster) I removed the prop thinking the stuff wrapped around it, but not so, some water did drip out of the thruster… my BlueROV2 has less than 40 hours of usage…thruster goes bad?

p.s. sorry for all the posting everywhere, finally I paid attention to Topics to: