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  1. Replies
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    Does the entire economy of Costa Rica revolve...

    Does the entire economy of Costa Rica revolve around pressure switches? I've never seen a product besides 80% of pressure switches that said "made in Costa Rica"
  2. Replies
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    1,215

    The valves and plate must be replaced as a set. ...

    The valves and plate must be replaced as a set. They "wear in" to each other and develop matching mating surfaces.
  3. Replies
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    1,218

    If the board has been replaced the new board puts...

    If the board has been replaced the new board puts out 120v and you have to replace the ignitor with a 120v model.
  4. I think you could pour liquid acid into the...

    I think you could pour liquid acid into the compressor and it would run more than 2 hours.
  5. Replies
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    1,052

    Put the heating hour meter on the humidifier tap...

    Put the heating hour meter on the humidifier tap (If your board has a 120v humidifier tap). It is only energized when the gas valve is open. Put the second meter on the EAC tap. It is energized...
  6. Thread: True GDM 49F

    by craig1
    Replies
    64
    Views
    1,620

    The one I tried in the other post was a 1.25 HP...

    The one I tried in the other post was a 1.25 HP in a 3 door. It worked awesome. Unfortunately it was the last 1.25 they had. I've put 3 of the 1 HPs in 2 door freezers since and they work great...
  7. Thread: True GDM 49F

    by craig1
    Replies
    64
    Views
    1,620

    If the compressor is running but wont pump down...

    If the compressor is running but wont pump down and is not making any knocking noises, change the valve plate. Even if it looks good, change it. I've changed a a few where the valve plate looked...
  8. I've never seen one of these in real life, but...

    I've never seen one of these in real life, but I'm thinking your vent line might be the problem. maybe that check valve is not supposed to be there or is facing the wrong way. Do you have a copy of...
  9. Thread: True GDM 49F

    by craig1
    Replies
    64
    Views
    1,620

    Apparently not, which is why no True parts...

    Apparently not, which is why no True parts distributor will talk to you unless you have a serial number. This is especially true with door gaskets.
  10. I flew on Southwest to Arizona last winter. On...

    I flew on Southwest to Arizona last winter. On the way there the plan was 80% full. On the way back there was 15 people on board. Everyone had an entire row to themselves. I assume they lost...
  11. Thread: True GDM 49F

    by craig1
    Replies
    64
    Views
    1,620

    There are 3 major revisions. Pre 2005 with...

    There are 3 major revisions.

    Pre 2005 with semi-hermetic compressor
    Post 2005 with hermetic compressor
    Current model (don't know the date) with the integrated controller
  12. If I was doing this project I would compare...

    If I was doing this project I would compare R-404a with either R-22 or R-134a

    R-404a is the "standard" for freezers. R-22 and R-134a will work but each come with their own set of problems when...
  13. Whats wrong with a gas dryer in the basement? In...

    Whats wrong with a gas dryer in the basement? In my area, 19 out of 20 dryers are gas and 4 out of 5 dryers are in the basement.
  14. Replies
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    807

    You say the suction temp is 61 degrees but the...

    You say the suction temp is 61 degrees but the compressor is icing up? Does it have a demand cooling valve? Maybe the valve is stuck open and flooding out the compressor
  15. Replies
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    734

    The "speeds" are actually different HP ratings....

    The "speeds" are actually different HP ratings. When you choose a lower speed, you are actually choosing a lower HP so that the motor is not strong enough to spin the blower at full speed.

    If you...
  16. Thread: Used furnaces

    by craig1
    Replies
    72
    Views
    2,669

    I've pulled out 2 month old 80% furnaces that had...

    I've pulled out 2 month old 80% furnaces that had never been run in heating mode because thats what came with the house and the owner wanted 95% multi-stage VS furnaces.
  17. Thread: Used furnaces

    by craig1
    Replies
    72
    Views
    2,669

    I've sold a few used furnaces that were young and...

    I've sold a few used furnaces that were young and in good shape. Usually to landlords or people who were down on their luck and didn't have cash for new.

    I sell a ton of used condensing units. ...
  18. Thread: Used furnaces

    by craig1
    Replies
    72
    Views
    2,669

    most used tires come from junkyards. The other...

    most used tires come from junkyards. The other major source of used tires is all wheel drive cars. All 4 tires must be the same size. If you destroy one somehow, you either must buy all new tires...
  19. Replies
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    541

    What about your wife's porn watching? Maybe...

    What about your wife's porn watching? Maybe she's borrowing the batteries for use in other "battery powered devices" and thats draining them down faster? :couchhide:
  20. Replies
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    685

    Lowes by me sells rubatex that's pre sliced and...

    Lowes by me sells rubatex that's pre sliced and pre glued. You just peel off the plastic film and stick it together. It's the real foam rubber lineset insulation, not the styrofoam water pipe...
  21. Thread: Nest thermostat

    by craig1
    Replies
    71
    Views
    3,273

    I've worked on dozens of systems with nests and...

    I've worked on dozens of systems with nests and installed a bunch of customer supplied ones and none have had any problems whatsoever.

    My only complaint about nest is that once I had a customer...
  22. Replies
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    1,670

    I have a supermarket customer that had Carrier...

    I have a supermarket customer that had Carrier RTU's with 2 stage mercury stats set at 68 degrees 24/7/365. due to all the refrigeration in the store they run heat 9 months per year and cooling 5-10...
  23. Replies
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    510

    The motor would burn up if it was pulling that...

    The motor would burn up if it was pulling that kind of amps. More likely your clamp on meter was too close to a transformer, motor, or other wire and picking up interference
  24. Replies
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    3,395

    Skin effect has to do with frequency, not...

    Skin effect has to do with frequency, not voltage. The higher the frequency, the thinner the "skin" in which the current travels. At 60Hz the skin is relatively thick, about 1/3". This would give...
  25. Replies
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    1,925

    If they're so confident, I would guess they give...

    If they're so confident, I would guess they give a 1 year money back guarantee. Oh wait, they don't? Guess that question is answered
  26. Replies
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    Somewhere there's an article about GE moving...

    Somewhere there's an article about GE moving their appliance manufacturing back to the US. One if the first lines they move was their heat pump water heaters. They were able to cut the...
  27. Replies
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    1,019

    Once in an emergency I stuck 134 in an R12...

    Once in an emergency I stuck 134 in an R12 system. It was a walk-in with a package cooling unit on top (no line set). I asked about it on here and the general consensus was its ok on close-coupled...
  28. Replies
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    2,459

    I would expect that the radiator in a corvette is...

    I would expect that the radiator in a corvette is designed to have air passing over it fast

    However there is a common related issue in cars. Often when people have problems with an engine running...
  29. Thread: A/C renew

    by craig1
    Replies
    17
    Views
    950

    There are people here on this forum that saw the...

    There are people here on this forum that saw the additives work with their own eyes. I am not one of them as I have yet to see the actual issue in the field as we had a very cool summer.

    Whether...
  30. Thread: A/C renew

    by craig1
    Replies
    17
    Views
    950

    I hear it fixes TXVs that are clogged with black...

    I hear it fixes TXVs that are clogged with black goo due to contaminated compressors
  31. As a good rule of thumb, if the stat has a...

    As a good rule of thumb, if the stat has a mechanical switch for heat/cool and fan/auto then y and g are jumped when the fan switch is in the auto position. If the stat has push buttons or a touch...
  32. Replies
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    Somewhere theres a picture of one cut in half. ...

    Somewhere theres a picture of one cut in half. If i remember correctly it was a a copper tee with the inlet in the branch and the outlet in a run and the other run capped. The whole thing was...
  33. Replies
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    470

    It's probably a XDX "valve". Which is not really...

    It's probably a XDX "valve". Which is not really a valve, just a gimmick that a few OEMs were scammed into buying.

    Most likely your problem is a clogged cap tube
  34. Gotta watch out for that because as the saying...

    Gotta watch out for that because as the saying goes..... Once they go black they never go back. :D
  35. Replies
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    425

    Just worked on one last week for the same...

    Just worked on one last week for the same problem. There was a spider web in the gas orifice of one of the burners.
  36. Thread: Vacuum pumps

    by craig1
    Replies
    10
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    482

    I have the Robinair 15600 like mike19 posted and...

    I have the Robinair 15600 like mike19 posted and I think its a great pump.

    JB pumps are also very good. I see a lot of old ones around still pumping away.
  37. It's a boiler, the # 1 symptom of a cracked heat...

    It's a boiler, the # 1 symptom of a cracked heat exchanger is a flood
  38. Replies
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    1,384

    How in the world are you having a hard time...

    How in the world are you having a hard time getting a 1/3 HP 134a compressor. It's about as difficult as walking in to a convenience store and getting for a snickers bar. It's literally the most...
  39. Thread: low boy drama

    by craig1
    Replies
    14
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    619

    39" BC2 cap tube is very common for that...

    39" BC2 cap tube is very common for that compressor. It definitely was not supposed to be #3. Did you weigh in the refrigerant? Are you sure it was completely evacuated and doesn't have air in it?
  40. Replies
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    527

    That sounds like a really nice system. You'll...

    That sounds like a really nice system. You'll want to check all traps, and most importantly the main vents in the basement (if its gravity return) Does this system have an electric condensate...
  41. Replies
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    527

    I just re-read your original post at saw you said...

    I just re-read your original post at saw you said its an old school. What type of radiators are in there? Cast iron, or some type of fin tube?

    also, do the radiators have one or two pipes...
  42. Replies
    13
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    527

    I wouldn't mind running that boiler as is, I just...

    I wouldn't mind running that boiler as is, I just don't like the idea of changing the fuel source to something less controllable.

    About 5 years ago I helped tear one of those out of an apartment...
  43. Replies
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    1,053

    Well, then I suggest you stock up on contactors

    Well, then I suggest you stock up on contactors
  44. Replies
    13
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    527

    Get the best home insurance you can afford. ...

    Get the best home insurance you can afford.


    On a serious note, don't do it. Your boiler has been in the same location for 100 years. Solid fuels are a good way to move it to a different...
  45. Replies
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    1,053

    Does it do this every cycle, or just after a...

    Does it do this every cycle, or just after a power loss?

    After a power loss would make sense because the crankcase heater would have been off and there may not have been a pump down if power was...
  46. Replies
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    409

    The controller might only run one evap at a time.

    The controller might only run one evap at a time.
  47. Replies
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    2,879

    I think I found your superheat problem. 8 PSI...

    I think I found your superheat problem.

    8 PSI is about -33 degrees. You said the case temp was 30, so assuming a severely starved evaporator, the suction line temp should be near the case temp,...
  48. Replies
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    2,879

    it really sounds like you have no load. is there...

    it really sounds like you have no load. is there airflow through the coil? Are you sure the plenum behind the back wall is not full of ice?

    Also are you sure the coil is actually getting cold?...
  49. Thread: Pushy Costomers

    by craig1
    Replies
    12
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    924

    reminds me of this...

    reminds me of this
    http://www.youtube.com/watch?v=yA4aRrbKsH0
  50. Replies
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    449

    2 years ago I went on a not enough cooling call...

    2 years ago I went on a not enough cooling call and found a restriction in the condenser. It was in the second row from the bottom, and everything after it was sweating. I eliminated the last 2...
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