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Depending on the make and model it could be the switch or on some cars the circuitry includes additional components like a small circuit board. answer most likey to be the fan switch, a blower motor does not alter the temperature only blows more air to be heated thru heater

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โˆ™ 2007-02-15 16:17:56
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Q: Why would a new blower motor not run on high speed and not get as hot as it used to?
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