Hi @divebubble, welcome to the forum 
Apologies for the slow response on this. Coincidentally, my response in this thread (which you have also commented in) may help resolve the issue you’re facing.
That said, thrust limiting is only necessary if you’re lacking power capacity in some form - do you know how much power your topside supply is capable of providing, and the efficiency and capacity of your onboard converter? This comment may be worth a read for understanding the important factors in your power system.
If the plug contacts are not corroded, and re-connecting it with appropriate tightening is able to prevent further water ingress, then hopefully it’s ok.