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Heater not warm enough

Updated: 10/20/2022
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13y ago

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I have an 01 mountaineer and had heater issue. My heater stoped working. I replaced the heter and air controll unit in the dash and it worked fine. However!!!!!!! I did some work on my suv,installed amp, spkrs ect. In doing so I unpluged my battery overnight. When I was done installing audio equt. I noticed my heater stoped workig again. All I could hear is a clicking sound in glove compartmet.be fore replacing dash unit I decided to figure it out on my own as to why this keeps happining.the mountaineer has a kill mecanizem behind the glove comp. Pull it down an youll see a small black box with 2 wires pluged into it.unplug it, dissconect the battery. After an hour or so, hook up battery an start the car. Plug in the box till the clicking stops and unplug it and leave it. I tryed it over and over to make sure I wasnt crazy......i dont know why, but it worked everytime. Hope this helpd you.

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