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The heat is provided by radiator coolant circulating through the heater core. This is a mechanical process and no fuses are involved. There are fuses for the control panel and the blower motor and the system will appear "dead" if the fuses are blown.

If the problem is lack of heat or control over the temperature of the system, the problem is most likely a mechanical failure of the blend door. This door regulates how much air is diverted through the heater core, and is a common failure on the Explorer. HeaterTreater has developed an inexpensive fix for the problem. Follow my user name to my bio page where you can get pointers to the fix and technical information on how to diagnose the problem and repair it. ford4me

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17y ago

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