R27-OB Thruster mystery

[thargett]

I have a new to me 2023 RT27 with the bow thruster and a stern thruster mounted on the 300hp Yamaha.

I used the thrusters to leave to dock where it had been charging on shore power - they worked fine. When we returned to the dock after a 45 minute ride, the thrusters would not turn on. The little blue power light did not enable and no beeping sound.

This is the second time my thrusters failed me as I'm trying to dock with the wind pushing me off the dock. I would have thought the engines would have charged the thruster battery bank.

Has this happened to anyone else? I suspect a problem charging from the engine alternator ....

Thanks

 

[gregc]

Wait, you have an external 300 Yamaha, AND a stern thruster?

 

[Submariner]

Wait, you have an external 300 Yamaha, AND a stern thruster?

Here's what it looks like. It's designed to be out of the water when the boat's up on plane.

 

[thargett]

Here's what it looks like. It's designed to be out of the water when the boat's up on plane.

View attachment 27257

View attachment 27258

Yes that's exactly like mine. Have you had any issues with mysterious thruster behavior?

 

[Submariner]

Yes that's exactly like mine. Have you had any issues with mysterious thruster behavior?

That's not a photo of my boat. I don't have the need for a stern thruster on my R27.

 

[Bob&Jilly]

Here's what it looks like. It's designed to be out of the water when the boat's up on plane.

View attachment 27257

View attachment 27258

Wow, that must cause some drag. Of course with an outboard a stern thruster seems to be redundant and unnecessary