Mohammad, I went through a similar issue last year with mine. It ended up being the IPC relay, which I was able to diagnose using the SP_troubleshooting guide. I also showed the steps used in my details of bow thruster details PDF. It is picture 11,page 7. You will use a jumper wire on the solenoid, to see where the problem is.
S/V Aventura, Amel 54-113
White Point Marina, Kinsale VA USA
From: <main@AmelYachtOwners.groups.io> on behalf of Mohammad Shirloo <mshirloo@...>
Our bow thruster stopped working on one direction. While pulling out the manuals, I would appreciate any information regarding the potential source.
Mohammad and Aty