Hi Folks,

I have a 2003 530 Voyager. I live on the boat on and off. A couple weeks ago I was awoken in the middle of the night to the bow thruster running. It is a Volvo Penta BP1200 (24v). I rushed to the helm and tried reversing direction and deactivating the station. I also went to the upper helm and repeated this. No effect! I continued to fiddle and it would stop for a second when I reversed direction, then start up on its own again. After a couple minutes it stopped on its own and did not repeat this through the rest of the night. Later, I flipped the master switch in the engine room to be sure there was no repeat performance. This could have been a disaster if I hadn't been on the boat.

Question: what might have caused this malfunction? This could have been really serious if it had happened while docking. The relay? The joystick (rocker)? A loose wire? LoL. Any thoughts would be appreciated.

Thanks
Tim