Question about 2000 Ford Focus

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My heater fan only works on setting 4,the other three do no work. Please can you tell me what the problem is. Many thanks

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Your resistor has failed, and the swtich may also be bad. See my tips at .

I could not find the location of your resistor, but I believe you will find it under the dash on the passenger side. Please let me know if you have questions.

Posted on Oct 08, 2010

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The swith contain four steps from inside it looks like the contact inside the switch are out of order if the step four is working now later on will stop because this is the life time for the switch and it is too difficult to reassemble it once it is opened it needs an expert

Posted on Oct 28, 2010

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Posted on Jan 02, 2017

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SOURCE: heater fan only works on fastest speed

Your blower motor resistor has gone bad, it should be located next to your blower motor in the car, held in place with a couple of screws, remove it and replace it. The resistor is responsible for making the blower motor run at slower speeds than high or (4). Let me know if this helps.

Posted on Jun 16, 2009

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SOURCE: interior fan only working on high #4

it only takes a sprk to blow the heat and ac switch out such as installing a stero ormayby rounding the plastic off behind the switch

Posted on Jan 12, 2009

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