for Yellow Springs, OH
here for a two year old air conditioner that customer says periodically shuts off. She did not have a very good understanding of the programmable thermostat and has only lived in the home for a year, I think the system is possibly reverting back to the default scheduling menu. I explained that when she set the temperature to make sure she hits the hold button to keep that temperature on hold until she changes it. We also replaced batteries in the thermostat.