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  1. #1
    Join Date
    Jan 2013
    Location
    San Gabriel Valley, California
    Posts
    32

    Cool FengsHVAC a Professional HVAC Tech teach you how to fix the heat on Bryant Pkg Unit

    Problem: heat pump produce no heat, only blow cold air.

    Insight: Called for heat, Blower ran, but compressor didn't come on.

    Cause: dirty air filter cause the high pressure switch to trip during heat mode.

    Solution: While it was calling for heat, checked 24v on the Y wire from the thermostat at the unit, got 24v. checked 24v at the compressor contactor coil, no voltage. found High pressure swith is in between, reset it. cleaned the air filter, turned the heat back on.

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  2. #2
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,440

  3. #3
    Join Date
    Nov 2011
    Location
    St. Louis
    Posts
    3,238
    Teach us more, all knowing and wise Fengmaster...

    Was the reversing valve energized while you had 24v at Y?

  4. #4
    Join Date
    Feb 2012
    Location
    EVERYWHERE
    Posts
    226
    And now it's time for HVAC talk with FengsHVAC.

  5. #5
    Join Date
    Jan 2013
    Location
    San Gabriel Valley, California
    Posts
    32
    Quote Originally Posted by hurtinhvac View Post
    Teach us more, all knowing and wise Fengmaster...

    Was the reversing valve energized while you had 24v at Y?
    Bryant unit use O ternimal for the reversing valve, which means that reversing valve is energize in Cooling Mode. During Heating Mode Reversing Valve is de-energized... so , While i had 24v at Y, i didn't get any power at the reversing valve on heating mode..

  6. #6
    Join Date
    Feb 2010
    Location
    butler pa
    Posts
    1,073
    wow...heat pump class

  7. #7
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    17,952
    Check the filter class.....
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  8. #8
    Join Date
    Aug 2012
    Posts
    2,595
    You better fix that refer leak below the HPS.
    change a filter, Fix a heat pump.
    My name is TooCoolforschool and I am a chronic over charger.

  9. #9
    Join Date
    Mar 2009
    Location
    Mid-Mo
    Posts
    3,594
    I long to be as technically proficient as the OP.

  10. #10
    Join Date
    May 2012
    Location
    Upper Michigan
    Posts
    3,588
    Quote Originally Posted by ryan1088 View Post
    I long to be as technically proficient as the OP.
    If you work hard enuf all of your dreams will come true!

  11. #11
    Join Date
    Aug 2012
    Posts
    2,595
    Quote Originally Posted by Joehvac25 View Post
    If you work hard enuf all of your dreams will come true!
    Work smarter and all your dreams will come true.
    My name is TooCoolforschool and I am a chronic over charger.

  12. #12
    Join Date
    Dec 2002
    Location
    SouthEast NC ICW & Piedmont Foothills
    Posts
    7,635
    Quote Originally Posted by toocoolforschool View Post
    Work smarter and all your dreams will come true.

    fake it 'til you make it
    It`s better to be silent and thought the fool; than speak and remove all doubt.

  13. #13
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,512
    Quote Originally Posted by toocoolforschool View Post
    Work smarter and all your dreams will come true.
    Quit working and suck off the governments teat and you're set for life
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

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