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Discussion Starter #1
Hey I have a 00' focus lx and the ac/heat fan isn't working at all. When I turn on the fan speed dial nothing happens. Even when I press the defrost button the light beside it doesn't come on. Can someone please tell me possible reasons for this problem and how to go about fixing it?
 

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It sounds like you need to replace the blower motor. You should test it first though to be sure that you don't have an extreme version of the resistor failure. We have a resistors fail like this occasionally instead of the typical failure that allows the fan to run on 4, but not the lower speeds.

Do you have a digital multi-meter? If so, then remove the fan, and test for continuity between the pins on the fan plug. If you can't find ohms or continuity- then the motor is bad. Replace the motor, and yo should be fine. If you don't have a DMM, then you can be really daring and wire the fan to the battery directly to see if it runs. If you do this, don't hurt yourself or the fan.
 
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