Not blowing any cold or hot air on any fan setting
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This is a discussion on Not blowing any cold or hot air on any fan setting within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I've got a 2004 WRX. It's slowly stopped blowing air over the past week. If I try to turn the ...

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    Not blowing any cold or hot air on any fan setting

    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?

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  3. #2
    Registered User marx's Avatar
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    It could be a blower motor issue. Sometimes when they go bad they will work for a short period and then quit all together. I have seen it be a relay issue on some other vehicle but they will usually work on high so you can stil have ac or heat until you get it replaced.

  4. #3
    Registered User SUBhuman's Avatar
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    Blower motor, most likely. If it has an electronic resistor (not sure off-hand), then that's a possibility as well...

    Unfortunately, I'm not sure how to check resistance on an electronic resistor, but you could remove the motor itself and hook it up to a 12-volt source to see if it spins. That would give you an idea on whether the motor itself is failing, or some other component (or even wiring) is at fault.
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