hey fellas need a lil help. Recently or should say the other day i go to use my heat and realized that the heat only worked on the setting of hi. Same also went for the ac. I did some research and people say it could be a relay but i am wondering if anyone else had this problem and what your solution was to it. I am not a wiring guy so please dont hate. Thanks for any feedback, oh yea its an 07 f150 xlt that i have