# A/C fan on volvo 2002 v40

**URL:** <https://community.cartalk.com/t/a-c-fan-on-volvo-2002-v40/76284>\
**Category:** Maintenance/Repairs\
**Tags:** v40, volvo\
**Created:** [December 22, 2012, 11:44pm UTC](https://community.cartalk.com/t/a-c-fan-on-volvo-2002-v40/76284 "2012-12-22T23:44:22Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tmontgom](https://avatars.discourse-cdn.com/v4/letter/t/7ea924/32.png) [@tmontgom](https://community.cartalk.com/u/tmontgom)\
**Post date:** [December 22, 2012, 11:44pm UTC](https://community.cartalk.com/t/a-c-fan-on-volvo-2002-v40/76284/1 "2012-12-22T23:44:22Z")

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The a/c fan on my 2002 Volvo v40 will suddenly speed up for a few seconds, and then go back to the original speed. It happens if the a/c is on or off. All speeds work otherwise.  
Any ideas?

Tom

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**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [December 23, 2012, 12:41am UTC](https://community.cartalk.com/t/a-c-fan-on-volvo-2002-v40/76284/2 "2012-12-23T00:41:27Z")

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AC fan . . . I’m assuming you mean the blower motor, which is located near the glove box.

If you mean the blower motor, you might have a bad blower resistor pack.

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**Author:** ![keith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/keith/32/5518_2.png) [@keith](https://community.cartalk.com/u/keith)\
**Post date:** [December 23, 2012, 2:01am UTC](https://community.cartalk.com/t/a-c-fan-on-volvo-2002-v40/76284/3 "2012-12-23T02:01:50Z")

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I agree with the above unless it happens with the fan on in the highest position. If it happens in the highest position, you may have a major problem brewing, like a bad voltage regulator that could damage the sensitive electronics in the vehicle.