I am new to this board. I am a female and know nothing about heating and air conditioning problems. I have a question about my thermostat control that I hope someone can help me with. Thank you for taking the time to read my question.

My house has central heat & air. About a month ago, I had the thermostat control on the wall set on automatic "heat". I left the heat on too long and it started getting too hot in the house. I decided to turn the thermostat control to air-conditioning to cool things down, but flipped the switch over "too fast." Now the air conditioning won't kick on. However the fan is still working. The thermostat switch also works when it is turned over to "heat". I have already checked the breaker box, but that didn't fix the problem.

My question is this -- do I need to install a new thermostat or do I have a more serious problem? It is starting to get warm where I live and need to get this taken care of as soon as possible. I would appreciate anyone than can give me some advice on this issue. Thank you in advance. I very much appreciate your help.