RTAA125 low on 22 or ...? - Page 3
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  1. #27
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    Aug 2006
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    Mixing oil and fire with a big spoon.
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    Quote Originally Posted by R123 View Post
    ...I would concentrate on checking that the EXV is working properly and checking the sat evap and compressor suction temp sensors.
    that is what ryan was saying and i was backing him up. no temperatures or pressures or amps or volts or the Moons position in the Heavens have been confirmed with an accurate or separate meter/gage/telescope.
    You either love bacon or you are wrong.

    4 gallons of gas, 2 miles of travel, teaching my daughters how to drive in the high school parking lot...priceless!

  2. #28
    Join Date
    Apr 2012
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    Louisiana
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    636
    What temps are being displayed for saturated evap and compressor suction? Simply checking the ohms is not enough you need to read the voltage across the sensors also. That's all I'll say in the open forum.

    You really should sign up for a pro account you've got more than enough post.

    And I'm about 99% sure low charge is wrong.
    Last edited by Sicofthis; 04-28-2013 at 12:58 PM.

  3. #29
    Join Date
    Nov 2004
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    up in the hizzy
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    1,375
    Quote Originally Posted by Sicofthis View Post

    And I'm about 99% sure low charge is wrong.
    Well, my friend, you were 1% right!

    Pulled the charge today and the chiller was 48LB short, fixed the leaks and left it pressurized with 200psi of nitro overnight.

  4. #30
    Join Date
    Mar 2011
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    North Carolina Piedmont Area
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    442
    Now you can begin to troubleshoot.
    But I am still learning and looking for a new mentor.
    _______________________
    In a strict sense troubleshooting is not part of the repair..........understand the symptoms and you will find a solution.

  5. #31
    Join Date
    Apr 2012
    Location
    Louisiana
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    636
    Lol I'll take 1%, good job on calling it. Never seen low charge trip that fast, though sounds like you were super low.
    You said small leak earlier, was there much oil?

  6. #32
    Join Date
    Nov 2004
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    up in the hizzy
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    Quote Originally Posted by Sicofthis View Post
    You said small leak earlier, was there much oil?
    There was not a lot of oil, that puzzled me, the oil separator most be doing a hell of a job.
    last week I locked circuit 2 and circuit 1 was running fine when I left, got there this morning and circuit 1 was in alarm, something to do with the starter, re-setted it and didnt trip again. Customer told me they had nothing but problems with the RTAA, way to go Trane

  7. #33
    Join Date
    Mar 2011
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    North Carolina Piedmont Area
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    442
    What type of starter do you have. Is it a closed transition starter?

    How many hours does the control display.
    But I am still learning and looking for a new mentor.
    _______________________
    In a strict sense troubleshooting is not part of the repair..........understand the symptoms and you will find a solution.

  8. #34
    Join Date
    Nov 2004
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    up in the hizzy
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    Quote Originally Posted by alcomech View Post
    What type of starter do you have. Is it a closed transition starter?

    How many hours does the control display.
    Yes! it is a closed transition y-delta starter, dont remember the exact hours.

  9. #35
    Join Date
    Mar 2011
    Location
    North Carolina Piedmont Area
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    442
    If you are having starting alarms such as failure to transition, you should check auxiliary contacts.
    You can try to ohm them out, and if over 10 ohms this is an indication that they are failing. But if they are original or have over 15,000 hrs on them just replace them.

  10. #36
    Join Date
    Nov 2004
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    up in the hizzy
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    Quote Originally Posted by alcomech View Post
    If you are having starting alarms such as failure to transition, you should check auxiliary contacts.
    You can try to ohm them out, and if over 10 ohms this is an indication that they are failing. But if they are original or have over 15,000 hrs on them just replace them.
    Its all original and cuttler-hammer discontinued it, I going to try matching them to something. Thanks for the info.

  11. #37
    Join Date
    Mar 2011
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    North Carolina Piedmont Area
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    442
    What do you mean? The parts are OEM and as far as I know they are still available.
    But I am still learning and looking for a new mentor.
    _______________________
    In a strict sense troubleshooting is not part of the repair..........understand the symptoms and you will find a solution.

  12. #38
    Join Date
    Jul 2007
    Location
    The Hot South
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    1,288
    Quote Originally Posted by alcomech View Post
    What do you mean? The parts are OEM and as far as I know they are still available.
    X2

  13. #39
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    Nov 2004
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    up in the hizzy
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    Quote Originally Posted by alcomech View Post
    What do you mean? The parts are OEM and as far as I know they are still available.
    I tried to buy it direct from C-H and was told they were discontinued, I like to circumvent Trane cause they charge an arm and a leg for every little dingy thing.

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