I had an air condition company come over to do general maintenance on my a/c. the repair man some how changed my thermostat. it has always been on manual, the way i like it, turn it up when i want to or turn it down etc... i do want to program anything. Anyways he pushed something and now this "temporary setting" is showing and i have lost my manual way. PLEASE tell me how to reset or fix this. not sure of the model number it only says chronotherm IV plus