flightdek-d180

We have a FlightDEK D-180 paired with a Rotax 912 consistently reading 20-22% low on the tachometer for the full range of RPMs from idle to WOT. RPM indications are steady with no spikes or drops. This was verified by comparison to an optical tachometer reading (converted to engine RPM in...

My plane keeps discharging battery. By mesurements today we fint that the D180 "eats" 0,8A when the aircrafts power mainswitch is shut off. When we disconnect the internal batteri of the unit, still the unit use power from the mainsource. Any clue what we should do about it?

My friend's , I installed on my plane, a Dynon D180, is currently attached to the EDC D10-A, does not have any PA or servos. I already did the DSAB configuration. But there is a message on the bottom left EFIS screen "AP: ERR" how do I resolve this? I have already reinstalled the latest version...