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Thread: Testing TXV

  1. #1
    Join Date
    Nov 2008
    Posts
    162

    Testing TXV

    So the TXV bulb is taken off the line and the cabnet is closed back up with the bulb on the outside dangling. Of course it is another 70 degree mild day. Here are the readings.
    High Pressure=165
    Low Pressure=65
    Suction Temp=41
    Liquid Line=79

    Now the bulb is submerged into ice water. After about 5 minutes here are the readings.
    High Pressure=175
    Low Pressure=66
    Suction Temp=42
    Liquid Line=79

    One other observation. When you put your ear up to the liquid line you can here a change in the sound of the refrigerant flow when the bulb is submerged into the ice water.

    Is the TXV working or barely working or is it okay.

  2. #2
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,790
    Calla good service company.

    I think your push the limits on DIY diagnostics.

    Thread closed.
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