I have the AF-3500 and it is currently showing 289 totalTacho hours.
When I first purchased the EFIS (some 3 or 4 years ago) I had an overheating issue that caused the EFIS to freeze so the tacho stopped recording a number of times at the peak heat of the day in summer.
This was solved by sending the EFIS back to the factory and you replaced the motherboard.
Subsequently I would like to be able to increase the tacho total from 289 by another 6 hours (the time flown with the tacho fronzen).
Is there a way I can adjust the Tacho total time from within the set-up menu or is it something that can only be set at the factory?
It's not a big deal really however I would get it done when I return my EFIS for the $2,500 upgrade to the new S model).
Thanks Dave