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  1. #1

    37-year Old GE AC Still Running Great

    I just joined the forum because I am an engineer and I find HVAC a very interesting topic. Anyway, since I moved into this house 20 years ago, this General Electric 2-1/2 ton AC has never broken down except for needing a couple cans of freon every 3 or 4 years. Based on the sticker on my furnace, it was installed in 1971. 37 years ago!!! As far as I can tell this thing has another 20 years in it. I have no idea what the seer rating is or if seer was even invented back then. Do you guys know if the old GE units are some sort of legend. I posted a couple of photos. Thanks.
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  2. #2
    Join Date
    Mar 2007
    Location
    NW AR
    Posts
    2,478
    I do see some still running. They dont make em like that anymore. Put a condensor fan motor in one last year.

  3. #3
    Join Date
    May 2007
    Location
    DC Metro Area (MD)
    Posts
    3,371
    Very impressive. The fact that it needs juice every 3-4 years isn't a good sign, though. It likely has a small leak somewhere, which may get worse. Is the indoor unit original as well? GE seems to have made some high-quality units back in the day.

  4. #4
    Join Date
    Dec 2002
    Location
    Houston,Tx.
    Posts
    15,948
    I just replace a motor and cap. and fan blade and contactor on one of those Monday the guy said it's a keeper he is not replacing it until the compressor dies. It was 88 in the house when I got back up and going again and the temps dropped faster than "anything" out there today could have done, including the God made over rated infinity.
    __________________________________________________ _______________________
    “Experience is a hard teacher because she gives the test first, the lesson afterwards". - Vernon Law

    "Never let success go to your head, and never let failure go to your heart". - Unknown

  5. #5
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,910
    Iron work horses. That A/C is about a 6 SEER.
    I still see them on a some what regular basis.
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    How many times must one fix something before it is fixed?

  6. #6
    Join Date
    Jul 2007
    Location
    Tulsa, OK
    Posts
    978
    I've worked on more than just a few in my time, and if they still run OK I usually tell them to just keep on going with it. Once you end up replacing it every thing is parts made in china and going to breakdown within 5 yrs to 10 tops.

  7. #7
    My furnace is a 1971 Heil oil fired downflow and there is a H coil in the crawl space. Due to high oil prices I did not burn any oil last season. We had a mild winter in VA and I used 7 oil filled electric radiators. By next season I hope to make my first try with a heat pump. Thanks for the positive feedback.

  8. #8
    Join Date
    Feb 2004
    Posts
    2,597
    Quote Originally Posted by beenthere View Post
    Iron work horses. That A/C is about a 6 SEER.
    I still see them on a some what regular basis.

    Actually more efficient than you think



    Records 1 to 2 of 21
    Manufacturer Year Seer BTUH Model Number Description
    General Electric 1967 7.3 30000 21TA930H Split System: Air-Cooled Condensing Unit, Coil Alone
    General Electric 1968 6.8 28000 21TA930H Split System: Air-Cooled Condensing Unit, Coil Alone

  9. #9
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,910
    Dang, off by 1.3 SEER.

    Thanks for the correction.

    But it doesn't matter, its still a Iron work horse. They don't make A/C's to last like that any more.
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  10. #10
    Join Date
    Dec 2002
    Location
    Houston,Tx.
    Posts
    15,948
    Hold tight I will go get my Preston's Guide out of the truck and tell you exactly what seer his unit is.

    Mr. Preston shows that unit to be a 1967 7.3 seer.
    Last edited by Mr Bill; 05-23-2008 at 10:16 PM.
    __________________________________________________ _______________________
    “Experience is a hard teacher because she gives the test first, the lesson afterwards". - Vernon Law

    "Never let success go to your head, and never let failure go to your heart". - Unknown

  11. #11
    Join Date
    Jun 2003
    Location
    Hell Hole Swamp
    Posts
    4,180
    Best Heat Pumps and AC's ever made, period

    There are many of them out there still running, all original parts and most likely the factory charge

    The only problems Ive seen with them are blower wheels getting out of balance, some run cap failures, and defrost controls, Ive had to repair the condenser fan wiring, the insulation had deteriorated.

    the compressors are bulletproof

  12. #12
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,910
    Quote Originally Posted by Swampfox View Post

    the compressors are bulletproof
    Not if you use Silver bullets. And I drink Coors Light, the Silver Bullet.
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    How many times must one fix something before it is fixed?

  13. #13
    Join Date
    Jun 2003
    Location
    Hell Hole Swamp
    Posts
    4,180
    I did find one with a blown terminal, lost the entire charge

    compressor was still running.....

    with the contactor open

    freewheeling on the trickle circuit, blew my mind for a few minutes lol

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