We have been full time in our 2007 MS RS3 for 3 years and my husband has become quick handy at finding and fixing problems. However, now our A/c is running almost continually, it lowers the temp to 73 until we turn it off, though it is set on 77. My husband has ordered a new thermostat and we are hoping that will solve the problem. We tried resetting it, but the results are the same. I was wondering where the sensor is that tell the thermostat when to turn off, does anyone know? Could it need to be replaced?
Any thought would be appreciated.