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Blowing warm air,not colling - Mitsubishi MS17TN Air Conditioner

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  • Jake Gibson
    Jake Gibson Mar 03, 2016

    Sue, I'm sorry to hear that your air conditioning unit is just blowing warm air. My parents had something similar happen to their HVAC system. I believe they ended up getting a few bids from some licensed, experienced, and reputable professionals. I would imagine that getting a tune up before the real hot summer months could be helpful.



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Sounds like a problem for a tech to solve. Most any residential HVAC service company can handle it. The problem could be anything from a minor electric issue to a leak in the refrigerant line.

Posted on May 26, 2010


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Posted on Jan 02, 2017


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if your sayin the unit isnt cooling then you need to see if it blows any air at all if so and its just warm or regular air then fist check your run capacitor to see if thats bad and at the same time put your hand on the top of compressor to see if thats running it should feel like a humm if not running copressor is probably bad if it is running then most likely its low on freon and if thats the case you have a freon leak some where in system and the new freon laws these days are requiring the a/c company to find and fix leak before adding freon .some companies will just fill it and the same problem will accur soon again.send back more info ,like is unit blowin air is compressor running and i can pinpoint problem easier thanks and let me know the outcome

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