It is not the fan motor for the radiator. The car has climate control. However, the family added a custom radio and bluetooth.
Volvo Q&AAsk Your Question
2004 Volvo XC90 Question: Why does the HVAC fan motor keep running sometimes after the engine is shut off?
Answer #1Greg's Orange Auto (12173 Answers) , Orange, CA - (714) 361-9386globalhelper November 13, 2012, 13:16Master
the radio may have its wiring tapped into the wrong pwr lead, take it back and havethem ck there work
Replysuperuncle, November 13, 2012, 17:06Rookie
Will do, thanks.
Answer #2Bret Bodas from RepairPal Test Shop, November 15, 2012, 12:48Master
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.
Replysuperuncle, November 15, 2012, 13:24Rookie
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.