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Thread: TXV bypassed

  1. #1
    Join Date
    Oct 2018
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    TXV bypassed

    A few hours after a semi-annual system check this Spring, our system stopped cooling. The company sent service people back four times over the course of three days and none were able to find or fix the cause. Each time, the system would "work" for an hour or two, then stop cooling. The last one here left a voicemail that he had bypassed the expansion valve and someone would be back the next day to make a permanent fix or replace the valve. No-one ever came back. When I called, I was told that the system would work fine (cool) with the valve bypassed. After 5 months and several additional telephone conversations, I resorted to calling in another company to assess the state of the system. He told me that he had never seen this before and, after checking with other technicians, thinks the system may not heat properly now.

    What to do?! What is true? Is the system as efficient as it could be?

    My system is Trane XL15I Heat Pump, 4TWX5030A1000AA

  2. #2
    Join Date
    Jan 2004
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    What was done to bypass the TXV?
    Contractor locator map


    How many times must one fix something before it is fixed?

  3. #3
    Join Date
    Nov 2008
    Piney Flats, Tn.
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    probably removed it. LOL

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