I have a 2003 Eclipse when I turn on the heat or AC the fan doesn't some on. When the problem started I only had the two high speeds on the heat and no AC. Now none of the speeds work. I can feel warm air if I turn the dial to warm and I could feel cool air when the AC was on.

Anyone have any ideas what could be causing the problem? Thanks.

 

relay or something of the sort

 

If the fan is the only thang not working then it is proably the resister (sets fan speed) or the fan motor itself. On some the resister is built into the blower switch.