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  1. Replies
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    It is coming from inside the a/c breaker itself. ...

    It is coming from inside the a/c breaker itself. I'll call the contractor to make sure the start up current hasn't become too high for some reason. I read that the buzzing means they are just on...
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    I had a contractor check my air pressures, and he...

    I had a contractor check my air pressures, and he said that my supply pressure was too high because the furnace my dealer sold me was bigger than I needed, and too big for my duct work and a-coil. ...
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    The sound is coming from my circuit breaker box. ...

    The sound is coming from my circuit breaker box. Hopefully it will just be a matter of tightening the panel or replacing a breaker. I hope it's not because the compressor is having trouble starting...
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    Yes, they run under the floor of that room. I...

    Yes, they run under the floor of that room. I don't have access to them, except where they connect to the units, because they would be behind drywall of the garages below me. Anything I can do...
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    What's making this noise?

    Every time my a/c goes on, something makes a BZZZT! sound for second. It seemed to start when my contractor reduced the speed of my blower motor. I searched on the internet, and I read about...
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    I had a guy check my pressures. This was an NCI...

    I had a guy check my pressures. This was an NCI certified owner with 47 years of experience. He said that everything was fine on my return side, with a return pressure of 0.2, even with my 14" flex...
  7. Thread: Freon Leaks

    by brucezas
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    5,613

    I had a guy out today who is an NCI certified...

    I had a guy out today who is an NCI certified owner with 47 years experience and still does service calls. He didn't detect any leaks with his electronic leak detector either in my evaporator or...
  8. Thread: Freon Leaks

    by brucezas
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    5,613

    That wasn't the 3 letter organization. The one...

    That wasn't the 3 letter organization. The one that starts with N and ends in I. They certify high performance contractors who do thorough measurements and checks. I haven't called one yet, but I...
  9. Thread: Freon Leaks

    by brucezas
    Replies
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    5,613

    I'm going to have it checked out by a company...

    I'm going to have it checked out by a company certified by that organization with 3 letters (are we not allowed to mention it here?). I'll probably be paying for any labor myself since the labor...
  10. Thread: Freon Leaks

    by brucezas
    Replies
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    5,613

    Did you mean the part about false readings due to...

    Did you mean the part about false readings due to not being warmed up/calibrated, or just the part about the false readings due to other chemicals?
  11. Thread: Freon Leaks

    by brucezas
    Replies
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    5,613

    Yes.

    Yes.
  12. Thread: Freon Leaks

    by brucezas
    Replies
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    5,613

    Is it possible that it went off just because it...

    Is it possible that it went off just because it wasn't warmed up? He also said it wasn't calibrated. I talked to an hvac guy at another shop, and he told me that they don't use sniffers because...
  13. Thread: Freon Leaks

    by brucezas
    Replies
    44
    Views
    5,613

    Is it possible that it went off just because it...

    Is it possible that it went off just because it wasn't warmed up? He also said it wasn't calibrated. I talked to an hvac guy at another shop, and he told me that they don't use sniffers because...
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    Really? But it violates the Bear Rules at the...

    Really? But it violates the Bear Rules at the bottom of your post. :)
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    Dehumidifier with Central Air

    I have 52% humidity even with central air, and my a/c can't maintain my set point on very hot days. Could a dehumidifier actually help my a/c keep the temperature down? I'm thinking that humid air...
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    Isn't that something that they should have done...

    Isn't that something that they should have done when they installed the new system?

    Actually the guy that sized it for the old system never did any measurement. At that time there was no flex...
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    On my previous system, a contractor didn't think...

    On my previous system, a contractor didn't think that a larger return would help, but now I have a newer system. How do I determine if a larger return might help now? I suppose I can have it...
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    By 16" return, I meant the square grille. The...

    By 16" return, I meant the square grille. The diameter of the round flex duct feeding it is only 14".




    I've been doing that.
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    80+ hours a week and you spend your off time...

    80+ hours a week and you spend your off time here? You must really love HVAC.
  20. Replies
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    I thought about it. Perhaps I should get an...

    I thought about it. Perhaps I should get an extended warranty that covers labor. That would cover the service call part if they have to come out, though not the R-22, and it would cover any leak...
  21. Thread: Freon Leaks

    by brucezas
    Replies
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    5,613

    This is important. How long after you did this...

    This is important. How long after you did this would it take for the detector to stop detecting just by having it in the air handler due to the gas dissipating? I insisted that my tech do this. ...
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    I think they feel that if the problem is traced...

    I think they feel that if the problem is traced to an installation problem that occurred when it was under warranty, they would have to pay for it. They fixed a leak for free last year even though...
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    Yes, the ducts are picking up a lot of heat for...

    Yes, the ducts are picking up a lot of heat for some reason, even in a short distance. The flex in the attic is only for the return. The temp into the plenum seems fine, same as into the return...
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    All the ducts run between the floor of my unit...

    All the ducts run between the floor of my unit and the ceiling of garages below me which are unconditioned. There is flex duct for the return in the attic.
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    Yes. On my previous system, a contractor up...

    Yes. On my previous system, a contractor up sized my blower motor and a-coil from 2 ton to 2.5 ton to improve the airflow through my ducts. My new system is back to 2 ton. I seem to only have a 13...
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    Not sure if this is what you want but: Outdoor...

    Not sure if this is what you want but:

    Outdoor Unit: Allegiance 13 2 ton: Model 2A7A3024A1000AA

    Evaporator: ADP w/TXV max 450 psi R-22 Model TE31424D175B1605AP

    The line goes through...
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    I saw that, but are these guys vetted by this...

    I saw that, but are these guys vetted by this site somehow? That would be useful. Otherwise, how is it better than just looking in the yellow pages? I'd really like to hire some of the guys I've...
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    Is it possible that my system only holds 5 to 6...

    Is it possible that my system only holds 5 to 6 pounds? Because 5 pounds 7 ounces was added when the leak was repaired. How much would the deficit have to be before it starts affecting the cooling...
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    1. It's lost freon every year that I've owned...

    1. It's lost freon every year that I've owned it.

    2. A leak was supposedly repaired last year.

    3. This year it's short again by a few ounces which may just be loss due to measurement, not...
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    So does this mean that if they check the...

    So does this mean that if they check the refrigerant every year, that every so often you would expect them to have to add refrigerant to make up for the losses? Also, help me understand this: they...
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    Replace condenser only?

    When I needed a new condenser, I was told that it is advisable to get a new air handler/evaporator too. I see that manufacturers also recommend this (big surprise). I thought that the idea was that...
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    So how do I find someone competent?

    It looks like I need to turn my a/c maintenance over to someone other than the dealer who has been servicing it. I'm very unhappy with them. But how do I know that the techs at a new place will be...
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    Blower motor speed

    I have an American Standard Freedom 80 air handler. Does this unit have multiple speeds for the blower motor, and if so, how would I make sure that it is on the highest speed for a/c? Thanks.
  34. Replies
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    Would this apply to the refrigerants that come...

    Would this apply to the refrigerants that come pre-mixed with dye?
  35. Replies
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    Near the service valves, where it makes a 90...

    Near the service valves, where it makes a 90 degree bend. I had them replace the Schrader cores today in case they got overheated during this repair. I had to come up with that myself, with you...
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    I asked him today how much he removes when he...

    I asked him today how much he removes when he checks it, and if this could this be a few ounces. He said that unlike other techs, he does something to minimize this. I think he said that he fills...
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    I think that's what I'll have to do. It...

    I think that's what I'll have to do.



    It was just a few ounces this year. What is reasonable to expect them to do in these cases where it is just a little short? They don't seem to be...
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    You can say that again. I'm so pissed off right...

    You can say that again. I'm so pissed off right now. I was just in a shouting match with the guy that was here. He replaced my Schrader cores after I twisted their arm. He only replaced the caps...
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    It's only 3 years old, but it has needed to have...

    It's only 3 years old, but it has needed to have R-22 added every year. The parts are still under warranty. Last year a leak was repaired. But it came up a few ounces short again this year. It...
  40. Thread: Freon Leaks

    by brucezas
    Replies
    44
    Views
    5,613

    Did you see any R-22 with dye? If you can give...

    Did you see any R-22 with dye? If you can give me a link to someone who sells it, then I can mention it to my dealer.
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    Can Dye Void a Warranty?

    The dealer who is performing maintenance on my a/c system says that they don't want to add dye because it can void the factory warranty. Has anyone heard of this? Has anyone had a warranty honored...
  42. Thread: Freon Leaks

    by brucezas
    Replies
    44
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    5,613

    I've heard of that, and I even mentioned it to...

    I've heard of that, and I even mentioned it to them. I can't see why it would void a warranty if we uncover a factory defect unless the dye actually contributes to the defect, which is unlikely. ...
  43. Thread: Freon Leaks

    by brucezas
    Replies
    44
    Views
    5,613

    OK, so they are coming tomorrow to replace my...

    OK, so they are coming tomorrow to replace my Schrader cores. But the owner doesn't want to add dye because it can void the warranty. This doesn't sound right to me. First of all, either it does...
  44. Thread: Freon Leaks

    by brucezas
    Replies
    44
    Views
    5,613

    It does have a problem keeping the temperature...

    It does have a problem keeping the temperature inside from rising in the late afternoon when it gets up to 95 outside. What kind of setup do they need other than having enough tonnage?




    It...
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    Where's my attic ventilation?

    I had an attic fan installed years ago, but I've been wondering if I have proper attic ventilation to make it work effectively. The only attic ventilation that I see are exhaust vents. My condo...
  46. Thread: Freon Leaks

    by brucezas
    Replies
    44
    Views
    5,613

    Thanks. Perhaps the overheating happened when...

    Thanks. Perhaps the overheating happened when they repaired the leak last year. The leak was near the service valve, where it makes a 90 degree bend. Assuming they didn't overheat it, can they...
  47. Thread: Freon Leaks

    by brucezas
    Replies
    44
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    5,613

    Have you seen them cause trouble on either the...

    Have you seen them cause trouble on either the American Standard or Trane units? I just noticed catmancan said that on those units they don't normally leak unless they are overheated. Before I...
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    Thank you. I thought I was losing my mind there...

    Thank you. I thought I was losing my mind there for a minute. I hate to not know what I'm talking about. ;)




    I think I know what you mean because I think I just saw a picture of it. I...
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    We were able to fix it with some modifications. ...

    We were able to fix it with some modifications. Iirc, the contractor made some little brackets to hold the pan up a little higher.
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    The extra drain pan was much smaller than the...

    The extra drain pan was much smaller than the other one. Not sure exactly how it was mounted. Do you find it impossible to believe that once upon a time there was a coil designed to work both...
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