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Ron, ASE Certified Technician
Category: Chevy
Satisfied Customers: 35857
Experience:  35 years experience with ASE Certs
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Blower resistor keeps burning up? Fan does not work on gh,

Customer Question

Blower resistor keeps burning up ?
JA: Thanks. Can you give me any more details about your issue?
Customer: Fan does not work on high, if I hit the top of dash board it comes on, now later I have been replacing resistor it only last a bout a week
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Submitted: 1 year ago.
Category: Chevy
Expert:  Ron replied 1 year ago.

Hello and thank you for your question,

Can you tell me what your working on please, year, make and model ?

Customer: replied 1 year ago.
2003. Asto cargo van
Expert:  Ron replied 1 year ago.

Okay thank for that,

So you replace the blower motor resistor and it only last a few days , is that correct?

Customer: replied 1 year ago.
Expert:  Ron replied 1 year ago.

In most cases if replacing the resistor allows the blower to work again and then it blows out shortly afterwards that usually means the blower motor has an excessive amp draw and usually replacing the blower motor as well as install a good working resistor will solve this concern.

Customer: replied 1 year ago.
Blower has been replace
Expert:  Ron replied 1 year ago.

Okay then are you sure your just not getting defective resistors. What brand are you using. There really is noting beside a bad resistor or a failing blower motor that can burn the resistor up.

Customer: replied 1 year ago.
Used 2 different brands
Expert:  Ron replied 1 year ago.

I would consider replacing it once more and go with an OE Delco resistor.

Customer: replied 1 year ago.
Expert:  Ron replied 1 year ago.

Providing you new blower is okay which it should be then I would go with the OE resistor.