A/C Blows Warm Air - Replace fan or FSR?

[ricoch3t]

I've tried doing several searchs on this topic, but I haven't been able to find a conclusive answer. I have 2003 X5 3.0i. My a/c is blowing warm air on every setting. I checked the auxiliary fan and it does not run when the a/c is on. According to the forums I've read, this is the source of the warm air. What's the solution? Replace the aux fan or replace the final stage resistor? Thanks

[Zulu95]

Fan or fan relay defect.

[4.6is Ryder]

It could be your evaporator. I had the same issue with only hot air coming out. The evaporator is a long repair. It requires the entire dash to come out. Hope you are under warranty or CPO if this is your issue. Hope this helps you out....Phil