Results 1 to 6 of 6
  1. #1
    Join Date
    Oct 2002
    Location
    Illinois
    Posts
    132

    coil freezing up

    I have a tempstar 3 ton heat pump system that keeps freezing up in the air cond mode. I changed the txv valve since the head pressure went up and kicked out high head sensor. I put on a new filter dryer and evacuated. Ran fine for several hours and then did the same thing again. Any suggestions?

  2. #2
    Join Date
    May 2011
    Location
    Ripley, WV
    Posts
    1,156
    What is the head pressure running during the time the unit operates? Does the condenser fan motor shut down before the High pressure cut out trips?

  3. #3
    Join Date
    Jan 2012
    Location
    WEST COLUMBIA S.C.
    Posts
    278
    Not enough info.Need pressures SC sh

  4. #4
    Join Date
    May 2012
    Location
    San Diego, CA
    Posts
    352
    How is your airflow? Are you returns blocked?
    You can call me Sam

    It should be a crime to be a mechanical engineer in San Diego
    Summer Design Temperature: 83 F Dry Bulb ~ 69 F Wet Bulb (California Climate Zone 7)

  5. #5
    Join Date
    Jul 2006
    Location
    Virginia
    Posts
    4,619
    Is the evap coil clean

  6. #6
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,875
    Moved to Tech to Tech Residential.
    Contractor locator map

    How-to-apply-for-Professional

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

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