Ok, Im at a loss now.  SI/DI now works which was my initial issue.  I did the factory default reset.  Now  I dont have a temp, which was working before the reset.  When the unit is initially powered up and you go into the system status page, the temperature selection says "not connected".  I have disconnected and reconnected all the plugs at the back of the unit and still get the same result.  I got this unit last spring and it doesnt have many hours on it.  Any suggestions?