I have just bought a Nissan Almera 2005 1.5 Litre Petrol. After a few days the LCD display has gone blank and the heater is stuck on full.l have checked all the fuses and had a mechanic look at the display which worked for a couple of days after he removed the display and put it back on despite finding no problems.If i disconnect the car battery for a few minutes everything works fine for a few hours when I reconnect it but when left overnight it reverts to a blank screen with heater stuck on full. Can anyone out there suggest a solution as this has stumped two mechanics !!!!