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Air conditioner will not switch over to heat - 2004 Mercury Mountaineer

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This sounds like the blend door actuator. This is a little door in the vent box down under the passenger side dash that opens and closes to change the vent temperature from heat to a/c. It is a little motor that opens the door. It tends to stop working due to the elements that it is in. I hope this helps!! Thanks!!

Posted on Oct 06, 2010

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The heating and cooloing system is not working. There is no heat or air conditioning coming through the vents.


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there are three doors / 1/ a/c heat 2/ mode /defors 3/ recurculation dodgeboy6069@yahoo.com

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