More than likely your door is just stuck like mine was. Try this leave your heat on and aim for every bump you can find and see if it eventually comes on, mine did. You can open the hood and see if the hoses are hot where it goes into and comes out of the firewall, if they are it's probablly just that door is sticking. Latter I am gonna get to that door and put some silicon on it so it doesn't stick anymore. Also check your vacume going to it, if thats good you got the same problem I do. Be forwarned though, if it does work it may take a day are 2 to get it to switch back to cold, it did on mine. More than likely this is your problem too. Also, the led for climite control is a commen problem, that I also have, good news is thats the only thing except 1 led around 8 grand on my tach that doesn't work. I can still see it though so no bid deal.