2014 Wakesetter 22 MXZ with Nautic Logic GPS installed 4 years ago. Worked flawlessly......until yesterday.
Boat runs fine. But MPH is now displaying incorrectly when running - manual, not when cruise control.
MPH displayed at idle would creep up to 40 mph. Below 8 MPH or seemingly less than 2500 rpm works fine - then slowly drops off to zero.
Sometimes it displays accurately when heading in one direction, but when you turn, it drops off.
Gps puck has been secured and in same position last 4 years. No recent changes to boat except fuel filter replaced and batteries replaced - 2 weeks prior to when GPD started acting up - and it displayed fine during interim.
Cant see any wiring issues - no mice chewed wires, etc.
Fuses good.
Bad receiver? It's solid state so hard to break those things. Lightning strike near the boathouse fritzed it?
Anybody else experience this?