2021 SE550 Thruster beeping

[Powell Head]

I have a 2021 SE550 with the thruster option. Recently the port side thruster has started having a beeping alarm that will not turn off. You don't hear it while out on the water, however once its loaded back on the trailer during our wipe down it is continuous until you shut the battery off. Even if you shut the battery of for a couple minutes then turn it back on it starts beeping again.

I took it into the dealer and they say this is normal. I told them it didn't do that when I first bought it. After I did the break in hours and took it in for the post break in service it started doing it and has done it ever since. This doesn't seem normal to me. Why only the port side? It beeps about every 15 seconds non stop till you kill the power from the battery. Turning the key off doesn't stop it either. I don't think it had anything to do with the service.

Still doesn't seem normal to me. Also of note that I pointed out to the dealer, the port side thruster motor is discolored. Turning gold on the motor itself. That isn't happening on the starboard side. He did say that was odd but still assured me that the beeping alarm is normal.

Has any one else with the thrusters have this happening that can confirm to me that this is normal?

Also under the panel that backs the back seat on the port side there is some sort of computer module that has a cooling fan. The dealer said its for the underwater lights and the thrusters. The fan constantly runs. Again never turns off unless you kill the battery power. They have also said this is normal.

All this is just a drain on the batteries. If I leave the battery switch on for more than 2 days the batteries are dead.

Anyone have any guidance here? I would go to another dealer for a second opinion, unfortunately we only have 1 Supra dealer in the state.