Question about 1996 Buick Park Avenue

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The air conditioner blower fan continues to run when I shut the system and car off

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Sounds like the fan relay is stuck in the on position. are you sure it doesn't turn off in a few minutes? I've seen that before.

Posted on Sep 08, 2010


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I have an 2002 S60 Volvo. What is wrong when the car is cut off and the air conditioner keeps blowing through the vents and the car gets hot?

Two possibilities. Volvos do have air quality system that will continue to run the blower motor even when the car is off when it senses excessive moisture in the system. This is to "air out" the system so that moisture doesn't lead to mold inside of the condenser,evaporator, etc.... Because that would cause not only bad smelling air but could also cause problems for people riding in your car when the air is on if they have mold allergies. Cannot say for sure if your car has that system, but if it does the fan should still cut off at some point, it has a fail safe so that it will not run the battery dead. Only other possibility that I have even seen for that symptom is the blower motor itself has an internal fault and recommended repair would be replacement of blower motor and resistor. I work at dealership and don't know exact price offhand but rough estimate $1000. Also if you do not currently have the money to do it you can use your a/c and heat while driving then remove the fuse for the climate control system when not driving, this will avoid running the battery down so you won't have to constantly jump start. Just remember to plug that fuse back in when you are going to need heat or air because with it out all of that will be shut off.

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