Boat icon gone



My boat icon is gone on my TZ14. Center vessel box is gone. All go to spots are grayed out???
Yes, GPS330B was working fine previously for about 5 months.
I recommend going to Menu - Initial Setup - data acquisition section - and click on the data source button. Is the GP330B set as preferred ? Does it show up under current ? Do you see a lat/lon to the far right ?
Yes, 330 shows as source but there is no position value.
Thanks Johnny
If it has clear view of the sky; it appears that something is wrong with your GP330B or the CANbus supporting it. You might want to look over the wiring and the unit to see if you can find the issue or contact your local Furuno dealer.