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the blower resistor controls the fan speeds

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13y ago

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My 2004 Jeep Grand Cherokee AC only works on high does anybody know why the AC won't work on low or medium?

Assuming that by "high," "low," and "medium" you are referring to HVAC blower fan speed and that this happens with heat as well as with AC: Replace the blower resistor. It's no good.


Why does my heat in my 1999 dodge caravan only work when you turn the heat on high?

a bad blower motor resistor heat normally used on medium and high medium usually burns out those speeds first till only high is left normally located right back under glove box on heater box/core line usually 20-40$


Why does your 1999 Yukon heat only work on high?

If you are referring to the blower motor only working on the high speed setting, then the problem is the blower motor Resistor Pack is defective. Replace it. It can be the blower motor speed control switch but not likely.


Why does the front blower only work on high setting but not low or medium on 2002 Chrysler Town and Country?

When the fan is on high it does not run through the blower motor resistor. The low speeds don't work because the blower motor resistor is bad.


Why does heat fan on Toyota Solara only work on high?

You most likely have a bad blower motor resister.......


96 Ford Contour blows cold air only Car blew hot air on high only then the blower went I replaced the blower motor and resistor Now the blower works on low and medium only but no hot air cold only?

Figured it out...the blend door actuator was not fully seated when I replaced it.


Why does your blower motor in Toyota Camry works on only high?

the resistor for the blower motor is busted blower works on high with out it


Why does your blower fan only work on medium speed on your 1972 Chevrolet Blazer?

Blower motor speed resistor is partially burned out.


Why does ac blower only work on hi and not on low or medium on 2003 chevy silverado?

Most likely the Blower Motor Resistor.


Why does my Fan blower in my 2004 jeep only works on high?

There is a resistor near the blower that is bad, known cause is high speed only.


Why does the blower only work on high and no daytime running lights?

A blower motor that only works on high is normally caused by a defective Blower Motor Resistor Pack. DRL, do not have a clue.


Why does the heater blower only work on high?

from what i have read it is the blower motor resistor it goes bad and only lets the fan run on high google blower motor resistor and read on