HVAC acting up ?

So, I had the air conditioner company I’m still under warranty with (brand new home) come by to check out the upstairs unit which blows cold air when it’s at 71-72 degrees. It’s winter. He comes inside to change the upstairs temperature to 77 and it runs warm the whole time. He goes straight outside to the outdoor unit rather than checking the heat pump that’s in the attic, the contactor was recently changed by another technician and he felt the problem wasn’t there. Well, while he was about to take an air pressure reading, he broke something, a port/panel, I can’t remember through all his phrasing but now he has to order a part, dissemble the unit and do a 4 hour repair (On a brand new unit!!!). He left. He said he didn’t see anything wrong with the unit. Upstairs vents still blow cold air unless I crank it up to 73 or higher. Temperatures have been in the 30’s. Downstairs unit is working well and blows warm at 71-72. 

6 Answers

  • Anonymous
    1 month ago

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  • 2 months ago

    If you have a heat pump, that IS the outside unit. What you have in the attic is merely a heat exchanger. It SHOULD NOT be the first place checked because MOST issues are with the outside unit.

  • Droopy
    Lv 5
    2 months ago

    Ok first the Heatpump is the outside unit.  The unit in the attic is a Airhandler all it does is move air across a coil that refrigerant from the heat pump flows threw.  an it hold the backup heat geussing yours is electric.  He wasn't checking air pressure he was checking the refrigerant level.   

    When the Heatpump is running by its self a common complaint is cool air most heatpumps at best put upper 90's to 105 air out of the registers.   Which feels cool to your 98 degree body.  So its possible its working fine.  Check your temp coming from register.   p b l

  • 2 months ago

    you still haven't found the right company.  ask all your neighbors who they use

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  • Andy C
    Lv 7
    2 months ago

    Heat pumps don't really work under freezing conditions.  It sounds like a valve problem or a circuit board problem with the internal unit.

    With the 2nd unit working,  the bad valve (that determines hot or cold) seems more likely. 

  • ?
    Lv 7
    2 months ago

    Wait until he's got the replacement part and installed it, so he can carry on with his testing. We can't tell what is wrong from here, I'm afraid.

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