I have aprogrammable thermostet called Totallink. It has a door that opens and 3 buttons. One to regulate heat/ cool/ auto. [which is labeled mode] one is blue and says reset filter and the last one says fan. there are two arrow buttons to increase or decrease temp. on the outside front. The temp in my house is 59 and the auto temp is set for 67. Nothing happens. Any ideas? I have no manuel and i'm really cold.