S-1000 terminology

[Chuck - Raymarine - Moderator]

Rich,

Most dealers/installers are not equipped/trained to render repairs to the autopilot course computers. As Raymarine's Product Repair Center can still render repairs to the S1000, it is recommended that the S1000 be sent to Raymarine’s Product Repair Center to be bench checked / serviced. Ground loops such as you have described are unlikely to occur when connecting the drain leads to the vessel's bonding cable unless there is a circuitry fault within the product(s) whose drain leads will be attached to the bonding cable.