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Thread: True Model T-49

  1. #1
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    True Model T-49

    Hello everyone.
    I'm looking for some possible suggestions on a fix for a freezing refrigerator.

    The model is True T-49.
    The controller is a Dixell XR01-02CX Digital.

    The set point for the refrigerator is 6°c.
    When we plug it in the cabinet temperature quickly drops to below 16°c. and the low temperature alarm engages.

    Any ideas what the cause of this may be?

  2. #2
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    What does the dixell read?

    Does it shut off at -16?

  3. #3
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    Thread Starter
    It does not shut off, just sounds the alarm.
    The only error code is the low temperature LA code. The panel will alternate between that and the current temperature.

    Thank you for the quick response by the way.

  4. #4
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    Has anyone checked the dixell contacts with a meter?

  5. #5
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    Thread Starter
    Not yet. Not a lot of in house experience in these things. Would the contacts be located behind the control panel? What would be a normal reading?

  6. #6
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    You have yourself listed as a homeowner.
    If that’s the case it’s time to call a refrigeration tech.
    Unfortunately we can’t give any DIY instruction here per the rules.
    “I haven’t failed. I’ve just found 10,000 ways that won’t work.” - Thomas Edison

    “It’s not whether you get knocked down, it’s whether you get up.” - Vince Lombardi

    "In this house we obey the laws of thermodynamics" - Homer Simpson

    Local 486

  7. #7
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    Quote Originally Posted by mbryanton View Post
    Not yet. Not a lot of in house experience in these things. Would the contacts be located behind the control panel? What would be a normal reading?
    Get a commercial contractor out to look at it!

  8. #8
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    Thread Starter
    Ok, thank you.
    I am a home owner but this is a commercial refrigeration unit and we do have maintenance staff if that makes a difference.

  9. #9
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    Quote Originally Posted by mbryanton View Post
    Ok, thank you.
    I am a home owner but this is a commercial refrigeration unit and we do have maintenance staff if that makes a difference.
    Yes, that makes a difference, in a way.

    Usually, maintenance staff are not versed in refrigeration. In that case, they are best served by calling in a company that knows the product and how to troubleshoot it.

    We can't teach refrigeration to maintenance people here on the web site.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

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  10. #10
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    Quote Originally Posted by mbryanton View Post
    Ok, thank you.
    I am a home owner but this is a commercial refrigeration unit and we do have maintenance staff if that makes a difference.
    I would see if they know anything about how the box operates.
    If not, a commercial refrigeration company will be needed.
    “I haven’t failed. I’ve just found 10,000 ways that won’t work.” - Thomas Edison

    “It’s not whether you get knocked down, it’s whether you get up.” - Vince Lombardi

    "In this house we obey the laws of thermodynamics" - Homer Simpson

    Local 486

  11. #11
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    Quote Originally Posted by mbryanton View Post
    Ok, thank you.
    I am a home owner but this is a commercial refrigeration unit and we do have maintenance staff if that makes a difference.
    I wouldn't let then touch it!!!

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