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  1. #1
    Join Date
    Jun 2006
    Location
    Victoria, Texas
    Posts
    667
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    How do you reset control board on American Standard

    I repaired refrigerant leak on American Standard 4A6Z0048A1000B Heat Pump and got it charge up and cooling. I forgot how to reset the the lower control board that is still showing system low on charge.

  2. #2
    Join Date
    Jan 2015
    Location
    Bellevue, Washington, United States
    Posts
    1,656
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    Did you try temporarily disconnecting the R wire for a minute?

  3. #3
    Join Date
    Jun 2006
    Location
    Victoria, Texas
    Posts
    667
    Post Likes
    Thread Starter
    Yeah that right I forgot about that. Thanks!

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