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  1. Oops! My terminology appears to be incorrect. The...

    Oops! My terminology appears to be incorrect. The leak is in the cooling coils on the indoor unit, not the condenser coils.
  2. Need advice on Mitsubishi Mini Split Repair?

    The air handler on my 6-year old Mitsubishi mini split just gave out. According to my HVAC company, it's developed a rather large condenser coil leak. Unfortunately, replacing the coil is a rather...
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    Goodman fan wattage?

    I have a pair of Goodman HVAC units. The first floor is a GMH80905CN 5 ton unit. The second floor is a GMH80453AN 3 ton unit. A few months ago the fan in the 3 ton unit failed and was replaced with a...
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    Homeowner with OCD needs help.

    OCD = Obsessive Compulsive Disorder

    The other day I noticed that the name plate on my Goodman A/C units have faded. Where can I get new name plates?
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    That's interesting. I've noticed a few times that...

    That's interesting. I've noticed a few times that the air coming out of the vents is cool. Other times it's warm. Is it possible for the burners to fail to ignite one minute and then light the next?
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    Furnace keeps restarting?

    I have a 2-year old Goodman gas fired furnace, which is controlled by a Honeywell VisionPro Thermostat. Lately, it seems like every time the furnace reaches the set temperature it turns off, then...
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    Honeywell TrueSteam?

    I'm considering adding a Honeywell TrueSteam humidifier to my gas heating system(s). I'd like to humidify a 4,300 sq. ft. house with three floors and three separate heating units. I'm considering a...
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    Goodman electrical efficiency?

    Several months ago I had a tiny pinhole leak in my Goodman A/C lineset. Even though the attic unit coils froze up solid because of the leak, my HVAC tech told me the compressor wasn't damaged.

    As...
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    The into the unit temperature was 84 degrees, the...

    The into the unit temperature was 84 degrees, the out temperature was 62 degrees.
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    In fairness to acmech13, my HVAC tech agrees and...

    In fairness to acmech13, my HVAC tech agrees and thinks the drywall will solve the cooling problem. Even though the attic is well insulated there are still areas of infiltration, plus the cool air...
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    Yeah, I think I'm just going to let the tech...

    Yeah, I think I'm just going to let the tech figure it out. These folks seem like a very reputable company. In fact, they were recommended by members of this forum, so I'm sure everything will work...
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    The room is sealed off from unconditioned space....

    The room is sealed off from unconditioned space. If you can't offer any constructive advice perhaps you should find yourself another thread to follow. Good day to you sir.
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    So, when the tech comes by tomorrow should I take...

    So, when the tech comes by tomorrow should I take barty's advice or should I just let the tech figure out and solve the problem on his own. I really hate looking over someone's back. :confused:
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    I'm not sure. I don't recall seeing such a...

    I'm not sure. I don't recall seeing such a device. They did however hook up gauges to it to check the charge. Was that not the proper procedure?
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    I didn't witness the whole operation, but I did...

    I didn't witness the whole operation, but I did see them adding some R410.
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    So would the air temp still be +1 to +10 degrees...

    So would the air temp still be +1 to +10 degrees regardless of the outside air temp? If that's true I know the air coming out wasn't that cold.
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    I actually misspoke. I meant to say they were...

    I actually misspoke. I meant to say they were guessing at how long the lineset was, not how much R410 to put in.

    Keep in mind that the lineset runs from the attic, down two floors to the garage,...
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    I think that's part of the problem. I don't think...

    I think that's part of the problem. I don't think they measured the lineset when it was installed. My recollection was that they were guessing as to how much 410A to put in. I know that sounds bad,...
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    Not sure. Here are the specs:...

    Not sure. Here are the specs: http://www.mrslim.com/Products/itemDetail.asp?ProductSubCategoryID=140&ProductCategoryID=24&ProductID=1492

    This is what my HVAC company recommended.

    Here's an...
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    No, but I still think we can get the system...

    No, but I still think we can get the system operating fairly well without the drywall. Besides if we have to rip that sucker out, I'd rather do it now. :)
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    Just out of curiosity, how is this done AFTER the...

    Just out of curiosity, how is this done AFTER the system has already been charged once?
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    I sure hope that's NOT the case, as this is the...

    I sure hope that's NOT the case, as this is the largest mini-split available. :) I'm gonna predict that it's a charge issue, since the air coming out of the unit is cool but not cold. Anybody else...
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    Because you, and a lot of posters on this forum,...

    Because you, and a lot of posters on this forum, are trying to read between the lines and find something more than a guy trying to understand HVAC systems. Unfortunately, I can't accommodate you.
    ...
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    Do HVAC techs have gauges that will indicate the...

    Do HVAC techs have gauges that will indicate the level of charge and how much extra, if any, freon is needed?
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    I don't need to run it, although I was trying to...

    I don't need to run it, although I was trying to make it a little easier for the drywallers. When they get ready to finish the drywall, that's when I encase the mini-split in plastic so that no...
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    Yeah, that makes sense.

    Yeah, that makes sense.
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    Yes, I did. One sheet of 4' x 8'. BTW, I knew you...

    Yes, I did. One sheet of 4' x 8'. BTW, I knew you were joking. :)
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    I'm not smoking crack, but thanks for checking....

    I'm not smoking crack, but thanks for checking. :) Yes, I was referring to after the attic was insulated.
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    So there is no way to test it prior to the...

    So there is no way to test it prior to the drywall going up? The attic seems pretty well insulated. Before the insulation the temps were approaching 120-130 degrees.
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    Agreed, but I still think the charge is a little...

    Agreed, but I still think the charge is a little low. They were having problems with their gauges when they charged it.
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    On a 95 degree day, the attic without any A/C is...

    On a 95 degree day, the attic without any A/C is about 107 degrees. I haven't measured the air coming out of the mini-split. What temperature should it be?
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    I was just testing it. Drywall shouldn't make...

    I was just testing it. Drywall shouldn't make that much of a difference in insulation values, should it?
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    The mini-split has cheesy, window A/C type air...

    The mini-split has cheesy, window A/C type air filters that are made out of nylon or something. They're brand new, so that shouldn't be a problem.
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    Okay. I'll do that tomorrow in the daylight.

    Okay. I'll do that tomorrow in the daylight.
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    It was an unfinished third floor walkup attic,...

    It was an unfinished third floor walkup attic, which we're finishing. We already have the electrical and structured wiring done, as well as R19 batted insulation for the walls and R30 for the...
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    The compressor is outside, but the other part of...

    The compressor is outside, but the other part of the mini-split is in the attic.
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    I'm not sure I know where that is on a...

    I'm not sure I know where that is on a mini-split. Please advise.
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    The walkup attic is about 810 sq. ft.

    The walkup attic is about 810 sq. ft.
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    Well thankfully I had it installed by a reputable...

    Well thankfully I had it installed by a reputable HVAC company, so whatever the problem is I'm covered. By the way, I was told that if there's any kind of system failure the Mitsubishi mini-split is...
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    One of the three installers was specifically...

    One of the three installers was specifically trained on mini-splits and it sounded like he knew what he was doing. I'm guessing it's either a charging problem or leak, since it seemed to work pretty...
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    Mini-split not cooling.

    I just had a Mitsubishi mini-split (MSZ-A24NA) installed in my third-floor attic. The current temperature outside is 93 degrees. Although I have the mini-split set to 74 degrees, the best it can do...
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    It's paper faced.

    It's paper faced.
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    The only problem though is that the batted...

    The only problem though is that the batted insulation is already installed. So does that mean that it would have to be removed before a radiant barrier could be installed?
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    Not yet. What's a radiant barrier?

    Not yet. What's a radiant barrier?
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    Attic Temperature?

    I'm in the process of finishing an 800 sq. ft. third floor attic. The attic has already been wired and insulated and I'm having a Mitsubishi MSZ-A24NA mini-split system installed next week....
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    Oops! I forgot to update my profile. I'm in...

    Oops! I forgot to update my profile. I'm in Williamsburg, VA now. I was planning on having it professionally installed, but I just wanted to get an idea of the unit's cost.
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    Where can you buy it?

    Where can you buy it?
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    I really enjoyed reading this thread. I too live...

    I really enjoyed reading this thread. I too live in VA and am faced with a humidity problem, although I don't know if it's infiltration or oversized equipment related. One solution I'm considering is...
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    Both contractors said they did. I suspect that...

    Both contractors said they did. I suspect that somebody's math is wrong or there is simply a difference of opinion. Does the latter happen much in your industry?
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    Mitsubishi Mini-split in Attic?

    I'm getting quotes on installing a Mitsubishi mini-split system in my third floor walk-up attic, located in the Virginia Tidewater area. Two reputable HVAC companies are recommending different...
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