Question about 2005 Nissan Maxima

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Ac giving hot air i think a box is stuck?

Only hot air...had ac in the fall not sure what could have happened.
clicking noise last fall. the heater box was stuck. if it is stuck again could be blocking my cold air?

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  • Anonymous Apr 15, 2009

    I have the same problem. My air compressor is coming on but it blows hot air only.

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  • Nissan Master
  • 6,674 Answers

Yes a blend/air door stuck could cause that. Is your AC compressor cycling/engaging as it should?

Posted on Mar 08, 2009

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If it is not that speed then see the following..

Hope I can give you some direction. Speaking from a generic sense all ac/heaters these days have a door or doors in the blower box that control air flow from the main part of the box to different positions when you ask for vent, heater, mix, defrost etc..

Most these days are operated with a small electric servo/motor and unfortunately the mostly have plastic gears that wear and can "thump-thump" as the motor cycles trying to open or close the flapper door.

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My ac it's working bad, non cold air. I notice the air it's coming out from the top of the panel and from the bottom, looks like the switch stuck, so I can't swich positions to see if the ac is working....


1st thing you can check is to open the hood and have a helper turn the AC switch on and off and listen for a clicking noise from the engine compartment. If you hear this clicking noise everytime the AC is turned off and on then it is likely the AC compressor is working okay which would likely mean your blend door and actuator is stuck or has malfunctioned somehow. In either case they are both jobs for skilled tech's do to the likelyness of having to remove the IP to change them. If you do not hear any clicking noise under the hood then check all fuses and if they are all okay then I would recommend taking your car to a local tech that is AC certified do to the complexity of an AC system. Hope this helps.

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