Lost AP on 7610xsv

[palle]

On my 2016 Cutwater 26 the 7610 warning manager shows “Lost Heading Sensor Connection” followed by “Connection with Autopilot Lost”, and the AP portion of the 7610 screen goes blank. This has just started to happen, on 3 different trips now about 1 hour into each trip. The next day the AP on the 7610 comes up fine, works for about 1 hour and then shuts down as described above. The AP still works in Heading Hold mode and can be controlled from the little Garmin AP display (GHC20).
Since Heading Hold works the CCU has power and a good connection to the ECU. So the problem could be with the CCU connection to the NMEA 2000 backbone. But if that is the case why does things work fine for the first hour, then fail for the rest of the trip, only to work fine again the next day (for the first hour)? I’m stumped. Any ideas would be welcomed.

 

[ButtercupWa]

Had this happen to my on my 2018 C-28 last week for the first time. First occurred when caught in a rain cell, after the rain stopped it would clear up and reoccurred about every 30 minutes. Haven't been out recently to try it again. Look forward to hear folks advice -- thanks!

 

[palle]

In my original post I forgot to mention that restarting the 7610 and GHC20 in any sequence during the trip doesn’t fix the problem, and neither does cycling the house power off/on.

 

[Kevin Lamont]

On my 2016 Cutwater 26 the 7610 warning manager shows “Lost Heading Sensor Connection” followed by “Connection with Autopilot Lost”, and the AP portion of the 7610 screen goes blank. This has just started to happen, on 3 different trips now about 1 hour into each trip. The next day the AP on the 7610 comes up fine, works for about 1 hour and then shuts down as described above. The AP still works in Heading Hold mode and can be controlled from the little Garmin AP display (GHC20).
Since Heading Hold works the CCU has power and a good connection to the ECU. So the problem could be with the CCU connection to the NMEA 2000 backbone. But if that is the case why does things work fine for the first hour, then fail for the rest of the trip, only to work fine again the next day (for the first hour)? I’m stumped. Any ideas would be welcomed.

Hello,

Have you updated the software recently? If not, I would start with updating to the most current software. Also checking the connections at the AP pump to ensure they are tight and not damaged. Hope this helps.

Thanks,

 

[palle]

Hello Kevin, thanks for your reply. No new software update recently. I’m going to check the CCU connection to the 2000 network. I did notice the Marine Network connection (Ethernet) on the back of the 7610 was loose but the CCU is on the 2000 and not affected. I tightened it anyway.