About once a year, I find that my Side Power retractable stern thruster does not respond when I try to turn it on. I have discovered that I only need to shut off the main power switch to it and then turn it back on again, then I'm good for another year. So apparently, thrusters, like MS Windows, require an occasional "reboot".
2010 Greenline 33' Hybrid
Home port: Malmö, SWEDEN
Currently in: Marina di Ragusa (Sicily), ITALY