When I have my ac or heater on it only works on high and ...


When I have my ac or heater on it only works on high and you cannot turn it off unless you turn the car off. But my back controls work perfectly. Mechanic's Assistant: Have you checked the [coolant](/topics-coolant-ford/) ...

When I have my ac or heater on it only works on high and you cannot turn it off unless you turn the car off. But my back controls work perfectly. Mechanic's Assistant: Have you checked the [coolant](/topics-coolant-ford/) level? Has there been any leaking from the hoses? All of that is fine. Mechanic's Assistant: What is the make/model/year of your car? 2007 Ford expedition Mechanic's Assistant: Are you fixing your Expedition yourself? What have you tried so far? I am trying to fix it myself. I haven't done anything yet. Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? I think that's it

Automotive Expert
Hi! Welcome to JustAnswer. Thank you for contacting us for assistance with your vehicle. I'm Ron. I will be happy to assist you with your question. May I ask to whom I have the pleasure of speaking with today? When the [blower motor](/topics-blower-motor-ford/) continuously runs and only on the highest setting, this is more commonly due to a faulty Blower Motor Resistor. The resistor is located under the passenger's side dash, mounted to the side of the blower motor. For an image location view, click here: <u><strong><a href="https://bit.ly/3b3eQ30" target="_blank" rel="nofollow">https://bit.ly/3b3eQ30</a></strong></u>. To gain access, remove the passenger's side lower insulator panel. Inspect the electrical connector and wire harness for any loose, broken, damaged or burn wires. If no problems are found, replacing the resistor should solve the problem. To replace, unplug the electrical connector. Remove the 2 mounting screws. The resistor pulls out of the housing.
Automotive Expert
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