Stuck Trident thruster... ok to dive anyway?

I’m wondering if there is any problem running the Trident with a seized motor?

While prepping for a dive this weekend I found one of my horizontal thrusters was seized.

I soaked it, silicone-sprayed it and freed it up a little but it won’t spin on it’s own— still too bound up inside.

I want to dive in spite of the bad motor.

Question: does anyone know if there is a problem diving with a seized motor?

Many thanks,
RovBrooke