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2004 dodge ram ac and heater problem The heater and ac only work when the setting is set to high If it is set to low or medium the heater and or ac do not work. Can anyone help?
Wiki User
∙ 14y ago
The blower motor speed resistor is burned out. That part should be available at your local auto parts store. I believe the resistor is located under the hood, passenger side on the firewall, close to the blower motor. Two small screws hold it to the HVAC box.
Wiki User
∙ 14y ago
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