GARMIN 8416 Vessel range and date error

[wHISKYeCHO]

Hi,
I have reached out to Gamin "customer support" with their advice to head back to the tech installer. This was done at $140 later, is to return the question back to Garmin.
Error 1: Diesel engine reading accurate fuel flow. Tank fuel level set and accurate. Selected screen tab to display 'vessel (fuel) range", i.e tank level / fuel flow hr x Kt hr = vessel range This is not displaying. Appreciate any assistance. FYI it feels like a software issue, as opposed to a component issue. The vessel range is essential for trip plans under way.

Error 2: Tide information, displays 01 December 2001, change date function to current date, correctly displays current tide information. Upon exiting and then re-entering tide information page, the date reverts back to 01 December 2001. Using a garmin gps 76 antenna (if i recall correctly), so it is a current garmin antenna. No component satellite time issue between device and antenna.

Well, hope someone here can help more than garmin wasting my time and money....And appreciate in advance, thanks.

[smac999]

likly the wrong date from the gps. they all reset about 2 years ago and needed to to updated.

go to the sat info page and see what time it shows there.

[wHISKYeCHO]

Copy that, thanks. External antenna is a GPS 17 it does display error: *accuracy error (top left photo attached) though acquires strong satellites, no date displayed, switched source to 'built in antenna' (presume this one built into the 8416) and correct date shows up, note: less satellites and strength. Not ideal...

[smac999]

If the 17 is nmea 2000 you should be able to update it from the plotter.

If it’s nmea 183 not sure. The 17 was sold in both.

[tek-noid]

Looks like v3 fixes a date issue. https://www8.garmin.com/support/down...ls.jsp?id=4039