Erratic output from ACU 400

[Andy Laws]

Hi Chuck,

Going back to my original question, how can I check to see if the EV1 is working correctly, eg is it getting a good enough signal? The manual tells me the correct led sequence to show that it is networked on the stng network, but does this also show that it has a clear enough sky view or that it is functioning properly? It currently shows a constant green light.
We did the factory reset, dockside calibration and auto learn linearisation for the autopilot again but the same problem occurs. The pilot starts off holding an ok course then the wheel starts to turn port/starboard rapidly. The speed is set to SOG like you suggested.
Another problem we had with the pilot was that we couldn’t get it to sail to the windvane, in windvane mode the display showed the correct wind angle but as soon as it took over it put the wheel hard over and we had to press standby to regain steerage.
We will be taking the pilot and the itc5 to a service center on Monday to get them bench tested and at least check to see if the fault is in the hardware. In the meantime if you have any more suggestions for troubleshooting I would appreciate them.

Thanks, Andy.