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2004 Volvo XC90 Question: Why does the HVAC fan motor keep running sometimes after the engine is shut off?

 

Question

superuncle, 2.5L 5 Cylinder, Alexandria, VA, November 13, 2012, 07:32
 Rookie

It is not the fan motor for the radiator. The car has climate control. However, the family added a custom radio and bluetooth.

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  • Answer #1

    Greg's Orange Auto (13627 Answers) , Orange, CA - (714) 361-9386
    globalhelper November 13, 2012, 13:16
     Master

    the radio may have its wiring tapped into the wrong pwr lead, take it back and havethem ck there work

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    superuncle, November 13, 2012, 17:06
     Rookie

    Will do, thanks.

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  • Answer #2

    Bret Bodas from RepairPal Test Shop, November 15, 2012, 12:48
     Master

    This is normal. If you have run the A/C while driving, the heater fan will turn on after the car is shut off to help remove moisture from the A/C Evaporator. Allowing the moisture to remain can cause bacteria growth, which is why A/C systems can smell funny at times.
    You may see this referenced in your owners manual, but I'm not positive.

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    superuncle, November 15, 2012, 13:24
     Rookie

    I replaced the vent motor and the controller, which mounts on top of it. This should have been a very tough job, but I had a small helper who could make the change when the dashboard was only moved, not removed.
    The controller was tested and bad, but we replaced both.

    Thanks to all.

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