I've got a 2004 WRX. It's slowly stopped blowing air over the past week. If I try to turn the A/C on, it will come on for maybe 30 seconds, and then the light will extinguish. I don't hear a clicking sound when I turn the fan from 0 to 1, so I thought that might be a relay issue. I tried switching the two round, white relays (at least, I read they were relays; the wiring diagrams in the FSM didn't seem very helpful to me) to the left of the cabin fuse box, and it still did nothing. Is this mode of failure indicative of a certain component failing, or does anybody have any idea of what else to try short of just getting a new blower?