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2004 Toyota Corolla Question: Why does the heater fan resistor continue to burn out?

 

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tomcat53, Shepherdsville, KY, January 31, 2013, 06:51
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It will work for 2-3 weeks then burn out again. Does the fan motor need replacing? What can I do to fix tbis? Thank you.

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  • Answer #1

    Miles Auto Services (884 Answers) , Richmond, VA - (804) 885-4176
    milesauto January 31, 2013, 07:26
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    Could be the fan motor. The way to check it is to connect a amp meter to see if it could be pulling too much aperage...also check the wire connections paticularly at the resistor itself.

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    tomcat53, January 31, 2013, 07:51
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    A new blower motor is $70 and I replaced the resistor 3 times. I hope the new motor fixes the problem. Thanks so much for your help.

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    pushrod, January 31, 2013, 08:01
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    Agree with miles. Be sure to check 'closely' the connectors at the resistor and motor for any signs of heat/melted plastic/discoloration at the terminals ect. Replace as needed. Poor connection = high resistannce = heat = new parts failure!!

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    tomcat53, January 31, 2013, 12:13
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    This is my sisters car she purchased new. She had SEARS AUTO CENTER install the first resistor. They spliced some heater leads for unknown reason, I guess for a test. I need to check these closely.

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  • Answer #2

    Greg's Orange Auto (14224 Answers) , Orange, CA - (714) 361-9386
    globalhelper January 31, 2013, 12:27
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    also could be bad wire harness. ck for burn't wires at the plug

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